3 |
* |
* |
4 |
* Copyright (C) 2005-2010 NTT DATA CORPORATION |
* Copyright (C) 2005-2010 NTT DATA CORPORATION |
5 |
* |
* |
6 |
* Version: 1.7.2+ 2010/06/04 |
* Version: 1.8.0-pre 2010/09/01 |
7 |
* |
* |
8 |
* This file is applicable to both 2.4.30 and 2.6.11 and later. |
* This file is applicable to both 2.4.30 and 2.6.11 and later. |
9 |
* See README.ccs for ChangeLog. |
* See README.ccs for ChangeLog. |
13 |
#include "internal.h" |
#include "internal.h" |
14 |
|
|
15 |
static struct ccs_profile ccs_default_profile = { |
static struct ccs_profile ccs_default_profile = { |
|
.learning = &ccs_default_profile.preference, |
|
|
.permissive = &ccs_default_profile.preference, |
|
|
.enforcing = &ccs_default_profile.preference, |
|
|
.audit = &ccs_default_profile.preference, |
|
16 |
#ifdef CONFIG_CCSECURITY_AUDIT |
#ifdef CONFIG_CCSECURITY_AUDIT |
17 |
.preference.audit_max_grant_log = CONFIG_CCSECURITY_MAX_GRANT_LOG, |
.preference.audit_max_grant_log = CONFIG_CCSECURITY_MAX_GRANT_LOG, |
18 |
.preference.audit_max_reject_log = CONFIG_CCSECURITY_MAX_REJECT_LOG, |
.preference.audit_max_reject_log = CONFIG_CCSECURITY_MAX_REJECT_LOG, |
20 |
.preference.audit_task_info = true, |
.preference.audit_task_info = true, |
21 |
.preference.audit_path_info = true, |
.preference.audit_path_info = true, |
22 |
.preference.enforcing_penalty = 0, |
.preference.enforcing_penalty = 0, |
|
.preference.enforcing_verbose = true, |
|
23 |
.preference.learning_max_entry = CONFIG_CCSECURITY_MAX_ACCEPT_ENTRY, |
.preference.learning_max_entry = CONFIG_CCSECURITY_MAX_ACCEPT_ENTRY, |
|
.preference.learning_verbose = false, |
|
24 |
.preference.learning_exec_realpath = true, |
.preference.learning_exec_realpath = true, |
25 |
.preference.learning_exec_argv0 = true, |
.preference.learning_exec_argv0 = true, |
26 |
.preference.learning_symlink_target = true, |
.preference.learning_symlink_target = true, |
|
.preference.permissive_verbose = true |
|
27 |
}; |
}; |
28 |
|
|
29 |
/* Profile version. Currently only 20090903 is defined. */ |
/* Profile version. Currently only 20100903 is defined. */ |
30 |
static unsigned int ccs_profile_version; |
static unsigned int ccs_profile_version; |
31 |
|
|
32 |
/* Profile table. Memory is allocated as needed. */ |
/* Profile table. Memory is allocated as needed. */ |
33 |
static struct ccs_profile *ccs_profile_ptr[CCS_MAX_PROFILES]; |
static struct ccs_profile *ccs_profile_ptr[CCS_MAX_PROFILES]; |
34 |
|
|
35 |
/* String table for functionality that takes 4 modes. */ |
/* String table for functionality that takes 4 modes. */ |
36 |
static const char *ccs_mode[CCS_CONFIG_MAX_MODE] = { |
const char *ccs_mode[CCS_CONFIG_MAX_MODE] = { |
37 |
[CCS_CONFIG_DISABLED] = "disabled", |
[CCS_CONFIG_DISABLED] = "disabled", |
38 |
[CCS_CONFIG_LEARNING] = "learning", |
[CCS_CONFIG_LEARNING] = "learning", |
39 |
[CCS_CONFIG_PERMISSIVE] = "permissive", |
[CCS_CONFIG_PERMISSIVE] = "permissive", |
64 |
= "file::truncate", |
= "file::truncate", |
65 |
[CCS_MAC_FILE_SYMLINK] |
[CCS_MAC_FILE_SYMLINK] |
66 |
= "file::symlink", |
= "file::symlink", |
|
[CCS_MAC_FILE_REWRITE] |
|
|
= "file::rewrite", |
|
67 |
[CCS_MAC_FILE_MKBLOCK] |
[CCS_MAC_FILE_MKBLOCK] |
68 |
= "file::mkblock", |
= "file::mkblock", |
69 |
[CCS_MAC_FILE_MKCHAR] |
[CCS_MAC_FILE_MKCHAR] |
88 |
= "file::umount", |
= "file::umount", |
89 |
[CCS_MAC_FILE_PIVOT_ROOT] |
[CCS_MAC_FILE_PIVOT_ROOT] |
90 |
= "file::pivot_root", |
= "file::pivot_root", |
|
[CCS_MAC_FILE_TRANSIT] |
|
|
= "file::transit", |
|
91 |
[CCS_MAC_ENVIRON] |
[CCS_MAC_ENVIRON] |
92 |
= "misc::env", |
= "misc::env", |
93 |
[CCS_MAC_NETWORK_UDP_BIND] |
[CCS_MAC_NETWORK_INET_STREAM_BIND] |
94 |
= "network::inet_udp_bind", |
= "network::inet_stream_bind", |
95 |
[CCS_MAC_NETWORK_UDP_CONNECT] |
[CCS_MAC_NETWORK_INET_STREAM_LISTEN] |
96 |
= "network::inet_udp_connect", |
= "network::inet_stream_listen", |
97 |
[CCS_MAC_NETWORK_TCP_BIND] |
[CCS_MAC_NETWORK_INET_STREAM_CONNECT] |
98 |
= "network::inet_tcp_bind", |
= "network::inet_stream_connect", |
99 |
[CCS_MAC_NETWORK_TCP_LISTEN] |
[CCS_MAC_NETWORK_INET_STREAM_ACCEPT] |
100 |
= "network::inet_tcp_listen", |
= "network::inet_stream_accept", |
101 |
[CCS_MAC_NETWORK_TCP_CONNECT] |
[CCS_MAC_NETWORK_INET_DGRAM_BIND] |
102 |
= "network::inet_tcp_connect", |
= "network::inet_dgram_bind", |
103 |
[CCS_MAC_NETWORK_TCP_ACCEPT] |
[CCS_MAC_NETWORK_INET_DGRAM_SEND] |
104 |
= "network::inet_tcp_accept", |
= "network::inet_dgram_send", |
105 |
[CCS_MAC_NETWORK_RAW_BIND] |
[CCS_MAC_NETWORK_INET_DGRAM_RECV] |
106 |
|
= "network::inet_dgram_recv", |
107 |
|
[CCS_MAC_NETWORK_INET_RAW_BIND] |
108 |
= "network::inet_raw_bind", |
= "network::inet_raw_bind", |
109 |
[CCS_MAC_NETWORK_RAW_CONNECT] |
[CCS_MAC_NETWORK_INET_RAW_SEND] |
110 |
= "network::inet_raw_connect", |
= "network::inet_raw_send", |
111 |
|
[CCS_MAC_NETWORK_INET_RAW_RECV] |
112 |
|
= "network::inet_raw_recv", |
113 |
|
[CCS_MAC_NETWORK_UNIX_STREAM_BIND] |
114 |
|
= "network::unix_stream_bind", |
115 |
|
[CCS_MAC_NETWORK_UNIX_STREAM_LISTEN] |
116 |
|
= "network::unix_stream_listen", |
117 |
|
[CCS_MAC_NETWORK_UNIX_STREAM_CONNECT] |
118 |
|
= "network::unix_stream_connect", |
119 |
|
[CCS_MAC_NETWORK_UNIX_STREAM_ACCEPT] |
120 |
|
= "network::unix_stream_accept", |
121 |
|
[CCS_MAC_NETWORK_UNIX_DGRAM_BIND] |
122 |
|
= "network::unix_dgram_bind", |
123 |
|
[CCS_MAC_NETWORK_UNIX_DGRAM_SEND] |
124 |
|
= "network::unix_dgram_send", |
125 |
|
[CCS_MAC_NETWORK_UNIX_DGRAM_RECV] |
126 |
|
= "network::unix_dgram_recv", |
127 |
|
[CCS_MAC_NETWORK_UNIX_SEQPACKET_BIND] |
128 |
|
= "network::unix_seqpacket_bind", |
129 |
|
[CCS_MAC_NETWORK_UNIX_SEQPACKET_LISTEN] |
130 |
|
= "network::unix_seqpacket_listen", |
131 |
|
[CCS_MAC_NETWORK_UNIX_SEQPACKET_CONNECT] |
132 |
|
= "network::unix_seqpacket_connect", |
133 |
|
[CCS_MAC_NETWORK_UNIX_SEQPACKET_ACCEPT] |
134 |
|
= "network::unix_seqpacket_accept", |
135 |
[CCS_MAC_SIGNAL] |
[CCS_MAC_SIGNAL] |
136 |
= "ipc::signal", |
= "ipc::signal", |
|
[CCS_MAX_MAC_INDEX + CCS_INET_STREAM_SOCKET_CREATE] |
|
|
= "capability::inet_tcp_create", |
|
|
[CCS_MAX_MAC_INDEX + CCS_INET_STREAM_SOCKET_LISTEN] |
|
|
= "capability::inet_tcp_listen", |
|
|
[CCS_MAX_MAC_INDEX + CCS_INET_STREAM_SOCKET_CONNECT] |
|
|
= "capability::inet_tcp_connect", |
|
|
[CCS_MAX_MAC_INDEX + CCS_USE_INET_DGRAM_SOCKET] |
|
|
= "capability::use_inet_udp", |
|
|
[CCS_MAX_MAC_INDEX + CCS_USE_INET_RAW_SOCKET] |
|
|
= "capability::use_inet_ip", |
|
137 |
[CCS_MAX_MAC_INDEX + CCS_USE_ROUTE_SOCKET] |
[CCS_MAX_MAC_INDEX + CCS_USE_ROUTE_SOCKET] |
138 |
= "capability::use_route", |
= "capability::use_route", |
139 |
[CCS_MAX_MAC_INDEX + CCS_USE_PACKET_SOCKET] |
[CCS_MAX_MAC_INDEX + CCS_USE_PACKET_SOCKET] |
140 |
= "capability::use_packet", |
= "capability::use_packet", |
|
[CCS_MAX_MAC_INDEX + CCS_SYS_MOUNT] |
|
|
= "capability::SYS_MOUNT", |
|
|
[CCS_MAX_MAC_INDEX + CCS_SYS_UMOUNT] |
|
|
= "capability::SYS_UMOUNT", |
|
141 |
[CCS_MAX_MAC_INDEX + CCS_SYS_REBOOT] |
[CCS_MAX_MAC_INDEX + CCS_SYS_REBOOT] |
142 |
= "capability::SYS_REBOOT", |
= "capability::SYS_REBOOT", |
|
[CCS_MAX_MAC_INDEX + CCS_SYS_CHROOT] |
|
|
= "capability::SYS_CHROOT", |
|
|
[CCS_MAX_MAC_INDEX + CCS_SYS_KILL] |
|
|
= "capability::SYS_KILL", |
|
143 |
[CCS_MAX_MAC_INDEX + CCS_SYS_VHANGUP] |
[CCS_MAX_MAC_INDEX + CCS_SYS_VHANGUP] |
144 |
= "capability::SYS_VHANGUP", |
= "capability::SYS_VHANGUP", |
145 |
[CCS_MAX_MAC_INDEX + CCS_SYS_SETTIME] |
[CCS_MAX_MAC_INDEX + CCS_SYS_SETTIME] |
150 |
= "capability::SYS_SETHOSTNAME", |
= "capability::SYS_SETHOSTNAME", |
151 |
[CCS_MAX_MAC_INDEX + CCS_USE_KERNEL_MODULE] |
[CCS_MAX_MAC_INDEX + CCS_USE_KERNEL_MODULE] |
152 |
= "capability::use_kernel_module", |
= "capability::use_kernel_module", |
|
[CCS_MAX_MAC_INDEX + CCS_CREATE_FIFO] |
|
|
= "capability::create_fifo", |
|
|
[CCS_MAX_MAC_INDEX + CCS_CREATE_BLOCK_DEV] |
|
|
= "capability::create_block_dev", |
|
|
[CCS_MAX_MAC_INDEX + CCS_CREATE_CHAR_DEV] |
|
|
= "capability::create_char_dev", |
|
|
[CCS_MAX_MAC_INDEX + CCS_CREATE_UNIX_SOCKET] |
|
|
= "capability::create_unix_socket", |
|
|
[CCS_MAX_MAC_INDEX + CCS_SYS_LINK] |
|
|
= "capability::SYS_LINK", |
|
|
[CCS_MAX_MAC_INDEX + CCS_SYS_SYMLINK] |
|
|
= "capability::SYS_SYMLINK", |
|
|
[CCS_MAX_MAC_INDEX + CCS_SYS_RENAME] |
|
|
= "capability::SYS_RENAME", |
|
|
[CCS_MAX_MAC_INDEX + CCS_SYS_UNLINK] |
|
|
= "capability::SYS_UNLINK", |
|
|
[CCS_MAX_MAC_INDEX + CCS_SYS_CHMOD] |
|
|
= "capability::SYS_CHMOD", |
|
|
[CCS_MAX_MAC_INDEX + CCS_SYS_CHOWN] |
|
|
= "capability::SYS_CHOWN", |
|
|
[CCS_MAX_MAC_INDEX + CCS_SYS_IOCTL] |
|
|
= "capability::SYS_IOCTL", |
|
153 |
[CCS_MAX_MAC_INDEX + CCS_SYS_KEXEC_LOAD] |
[CCS_MAX_MAC_INDEX + CCS_SYS_KEXEC_LOAD] |
154 |
= "capability::SYS_KEXEC_LOAD", |
= "capability::SYS_KEXEC_LOAD", |
|
[CCS_MAX_MAC_INDEX + CCS_SYS_PIVOT_ROOT] |
|
|
= "capability::SYS_PIVOT_ROOT", |
|
155 |
[CCS_MAX_MAC_INDEX + CCS_SYS_PTRACE] |
[CCS_MAX_MAC_INDEX + CCS_SYS_PTRACE] |
156 |
= "capability::SYS_PTRACE", |
= "capability::SYS_PTRACE", |
|
[CCS_MAX_MAC_INDEX + CCS_CONCEAL_MOUNT] |
|
|
= "capability::conceal_mount", |
|
157 |
[CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
[CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
158 |
+ CCS_MAC_CATEGORY_FILE] = "file", |
+ CCS_MAC_CATEGORY_FILE] = "file", |
159 |
[CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
[CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
192 |
return value ? "yes" : "no"; |
return value ? "yes" : "no"; |
193 |
} |
} |
194 |
|
|
195 |
|
static void ccs_addprintf(char *buffer, int len, const char *fmt, ...) |
196 |
|
{ |
197 |
|
va_list args; |
198 |
|
const int pos = strlen(buffer); |
199 |
|
va_start(args, fmt); |
200 |
|
vsnprintf(buffer + pos, len - pos - 1, fmt, args); |
201 |
|
va_end(args); |
202 |
|
} |
203 |
|
|
204 |
/** |
/** |
205 |
* ccs_io_printf - Transactional printf() to "struct ccs_io_buffer" structure. |
* ccs_flush - Flush queued string to userspace's buffer. |
206 |
* |
* |
207 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
|
* @fmt: The printf()'s format string, followed by parameters. |
|
208 |
* |
* |
209 |
* Returns true on success, false otherwise. |
* Returns true if all data was flushed, false otherwise. |
210 |
|
*/ |
211 |
|
static bool ccs_flush(struct ccs_io_buffer *head) |
212 |
|
{ |
213 |
|
while (head->r.w_pos) { |
214 |
|
const char *w = head->r.w[0]; |
215 |
|
int len = strlen(w); |
216 |
|
if (len) { |
217 |
|
if (len > head->read_user_buf_avail) |
218 |
|
len = head->read_user_buf_avail; |
219 |
|
if (!len) |
220 |
|
return false; |
221 |
|
if (copy_to_user(head->read_user_buf, w, len)) |
222 |
|
return false; |
223 |
|
head->read_user_buf_avail -= len; |
224 |
|
head->read_user_buf += len; |
225 |
|
w += len; |
226 |
|
} |
227 |
|
if (*w) { |
228 |
|
head->r.w[0] = w; |
229 |
|
return false; |
230 |
|
} |
231 |
|
/* Add '\0' for audit logs and query. */ |
232 |
|
if (head->poll) { |
233 |
|
if (!head->read_user_buf_avail || |
234 |
|
copy_to_user(head->read_user_buf, "", 1)) |
235 |
|
return false; |
236 |
|
head->read_user_buf_avail--; |
237 |
|
head->read_user_buf++; |
238 |
|
} |
239 |
|
head->r.w_pos--; |
240 |
|
for (len = 0; len < head->r.w_pos; len++) |
241 |
|
head->r.w[len] = head->r.w[len + 1]; |
242 |
|
} |
243 |
|
head->r.avail = 0; |
244 |
|
return true; |
245 |
|
} |
246 |
|
|
247 |
|
/** |
248 |
|
* ccs_set_string - Queue string to "struct ccs_io_buffer" structure. |
249 |
|
* |
250 |
|
* @head: Pointer to "struct ccs_io_buffer". |
251 |
|
* @string: String to print. |
252 |
* |
* |
253 |
* The snprintf() will truncate, but ccs_io_printf() won't. |
* Note that @string has to be kept valid until @head is kfree()d. |
254 |
|
* This means that char[] allocated on stack memory cannot be passed to |
255 |
|
* this function. Use ccs_io_printf() for char[] allocated on stack memory. |
256 |
*/ |
*/ |
257 |
bool ccs_io_printf(struct ccs_io_buffer *head, const char *fmt, ...) |
static void ccs_set_string(struct ccs_io_buffer *head, const char *string) |
258 |
|
{ |
259 |
|
if (head->r.w_pos < CCS_MAX_IO_READ_QUEUE) { |
260 |
|
head->r.w[head->r.w_pos++] = string; |
261 |
|
ccs_flush(head); |
262 |
|
} else |
263 |
|
printk(KERN_WARNING "Too many words in a line.\n"); |
264 |
|
} |
265 |
|
|
266 |
|
/** |
267 |
|
* ccs_io_printf - printf() to "struct ccs_io_buffer" structure. |
268 |
|
* |
269 |
|
* @head: Pointer to "struct ccs_io_buffer". |
270 |
|
* @fmt: The printf()'s format string, followed by parameters. |
271 |
|
*/ |
272 |
|
void ccs_io_printf(struct ccs_io_buffer *head, const char *fmt, ...) |
273 |
{ |
{ |
274 |
va_list args; |
va_list args; |
275 |
int len; |
int len; |
276 |
int pos = head->read_avail; |
int pos = head->r.avail; |
277 |
int size = head->readbuf_size - pos; |
int size = head->readbuf_size - pos; |
278 |
if (size <= 0) |
if (size <= 0) |
279 |
return false; |
return; |
280 |
va_start(args, fmt); |
va_start(args, fmt); |
281 |
len = vsnprintf(head->read_buf + pos, size, fmt, args); |
len = vsnprintf(head->read_buf + pos, size, fmt, args) + 1; |
282 |
va_end(args); |
va_end(args); |
283 |
if (pos + len >= head->readbuf_size) |
if (pos + len >= head->readbuf_size) { |
284 |
return false; |
printk(KERN_WARNING "Too many words in a line.\n"); |
285 |
head->read_avail += len; |
return; |
286 |
return true; |
} |
287 |
|
head->r.avail += len; |
288 |
|
ccs_set_string(head, head->read_buf + pos); |
289 |
|
} |
290 |
|
|
291 |
|
static void ccs_set_space(struct ccs_io_buffer *head) |
292 |
|
{ |
293 |
|
ccs_set_string(head, " "); |
294 |
|
} |
295 |
|
|
296 |
|
static bool ccs_set_lf(struct ccs_io_buffer *head) |
297 |
|
{ |
298 |
|
ccs_set_string(head, "\n"); |
299 |
|
return !head->r.w_pos; |
300 |
} |
} |
301 |
|
|
302 |
/** |
/** |
321 |
ptr = ccs_profile_ptr[profile]; |
ptr = ccs_profile_ptr[profile]; |
322 |
if (!ptr && ccs_memory_ok(entry, sizeof(*entry))) { |
if (!ptr && ccs_memory_ok(entry, sizeof(*entry))) { |
323 |
ptr = entry; |
ptr = entry; |
|
ptr->audit = &ccs_default_profile.preference; |
|
|
ptr->learning = &ccs_default_profile.preference; |
|
|
ptr->permissive = &ccs_default_profile.preference; |
|
|
ptr->enforcing = &ccs_default_profile.preference; |
|
324 |
ptr->default_config = CCS_CONFIG_DISABLED | |
ptr->default_config = CCS_CONFIG_DISABLED | |
325 |
|
CCS_CONFIG_VERBOSE | |
326 |
CCS_CONFIG_WANT_GRANT_LOG | CCS_CONFIG_WANT_REJECT_LOG; |
CCS_CONFIG_WANT_GRANT_LOG | CCS_CONFIG_WANT_REJECT_LOG; |
327 |
memset(ptr->config, CCS_CONFIG_USE_DEFAULT, |
memset(ptr->config, CCS_CONFIG_USE_DEFAULT, |
328 |
sizeof(ptr->config)); |
sizeof(ptr->config)); |
352 |
profile, domain->domainname->name); |
profile, domain->domainname->name); |
353 |
} |
} |
354 |
ccs_read_unlock(idx); |
ccs_read_unlock(idx); |
355 |
if (ccs_profile_version != 20090903) |
if (ccs_profile_version != 20100903) |
356 |
panic("Profile version %u is not supported.\n", |
panic("Profile version %u is not supported.\n", |
357 |
ccs_profile_version); |
ccs_profile_version); |
358 |
printk(KERN_INFO "CCSecurity: 1.7.2+ 2010/06/04\n"); |
printk(KERN_INFO "CCSecurity: 1.8.0-pre 2010/09/01\n"); |
359 |
printk(KERN_INFO "Mandatory Access Control activated.\n"); |
printk(KERN_INFO "Mandatory Access Control activated.\n"); |
360 |
} |
} |
361 |
|
|
380 |
const char *cp = strstr(string, find); |
const char *cp = strstr(string, find); |
381 |
if (cp) { |
if (cp) { |
382 |
cp += strlen(find); |
cp += strlen(find); |
383 |
if (strncmp(cp, "=yes", 4)) |
if (!strncmp(cp, "=yes", 4)) |
384 |
return 1; |
return 1; |
385 |
else if (strncmp(cp, "=no", 3)) |
else if (!strncmp(cp, "=no", 3)) |
386 |
return 0; |
return 0; |
387 |
} |
} |
388 |
return -1; |
return -1; |
407 |
sscanf(cp + strlen(find), "=%u", i); |
sscanf(cp + strlen(find), "=%u", i); |
408 |
} |
} |
409 |
|
|
410 |
static void ccs_set_pref(const char *cp, const char *data, |
static void ccs_set_pref(const char *name, const char *value, |
411 |
struct ccs_profile *profile, const bool use_default) |
struct ccs_profile *profile) |
412 |
{ |
{ |
413 |
struct ccs_preference **pref; |
if (!strcmp(name, "audit")) { |
|
bool *verbose; |
|
|
if (!strcmp(data, "audit")) { |
|
|
if (use_default) { |
|
|
pref = &profile->audit; |
|
|
goto set_default; |
|
|
} |
|
|
profile->audit = &profile->preference; |
|
414 |
#ifdef CONFIG_CCSECURITY_AUDIT |
#ifdef CONFIG_CCSECURITY_AUDIT |
415 |
ccs_set_uint(&profile->preference.audit_max_grant_log, cp, |
ccs_set_uint(&profile->preference.audit_max_grant_log, value, |
416 |
"max_grant_log"); |
"max_grant_log"); |
417 |
ccs_set_uint(&profile->preference.audit_max_reject_log, cp, |
ccs_set_uint(&profile->preference.audit_max_reject_log, value, |
418 |
"max_reject_log"); |
"max_reject_log"); |
419 |
#endif |
#endif |
420 |
ccs_set_bool(&profile->preference.audit_task_info, cp, |
ccs_set_bool(&profile->preference.audit_task_info, value, |
421 |
"task_info"); |
"task_info"); |
422 |
ccs_set_bool(&profile->preference.audit_path_info, cp, |
ccs_set_bool(&profile->preference.audit_path_info, value, |
423 |
"path_info"); |
"path_info"); |
424 |
return; |
return; |
425 |
} |
} |
426 |
if (!strcmp(data, "enforcing")) { |
if (!strcmp(name, "enforcing")) { |
427 |
if (use_default) { |
ccs_set_uint(&profile->preference.enforcing_penalty, value, |
|
pref = &profile->enforcing; |
|
|
goto set_default; |
|
|
} |
|
|
profile->enforcing = &profile->preference; |
|
|
ccs_set_uint(&profile->preference.enforcing_penalty, cp, |
|
428 |
"penalty"); |
"penalty"); |
429 |
verbose = &profile->preference.enforcing_verbose; |
return; |
|
goto set_verbose; |
|
430 |
} |
} |
431 |
if (!strcmp(data, "permissive")) { |
if (!strcmp(name, "learning")) { |
432 |
if (use_default) { |
ccs_set_uint(&profile->preference.learning_max_entry, value, |
|
pref = &profile->permissive; |
|
|
goto set_default; |
|
|
} |
|
|
profile->permissive = &profile->preference; |
|
|
verbose = &profile->preference.permissive_verbose; |
|
|
goto set_verbose; |
|
|
} |
|
|
if (!strcmp(data, "learning")) { |
|
|
if (use_default) { |
|
|
pref = &profile->learning; |
|
|
goto set_default; |
|
|
} |
|
|
profile->learning = &profile->preference; |
|
|
ccs_set_uint(&profile->preference.learning_max_entry, cp, |
|
433 |
"max_entry"); |
"max_entry"); |
434 |
ccs_set_bool(&profile->preference.learning_exec_realpath, cp, |
ccs_set_bool(&profile->preference.learning_exec_realpath, |
435 |
"exec.realpath"); |
value, "exec.realpath"); |
436 |
ccs_set_bool(&profile->preference.learning_exec_argv0, cp, |
ccs_set_bool(&profile->preference.learning_exec_argv0, value, |
437 |
"exec.argv0"); |
"exec.argv0"); |
438 |
ccs_set_bool(&profile->preference.learning_symlink_target, cp, |
ccs_set_bool(&profile->preference.learning_symlink_target, |
439 |
"symlink.target"); |
value, "symlink.target"); |
440 |
verbose = &profile->preference.learning_verbose; |
return; |
441 |
goto set_verbose; |
} |
|
} |
|
|
return; |
|
|
set_default: |
|
|
*pref = &ccs_default_profile.preference; |
|
|
return; |
|
|
set_verbose: |
|
|
ccs_set_bool(verbose, cp, "verbose"); |
|
442 |
} |
} |
443 |
|
|
444 |
static int ccs_set_mode(const char *cp, char *data, |
static int ccs_set_mode(char *name, const char *value, |
445 |
struct ccs_profile *profile, const bool use_default) |
struct ccs_profile *profile) |
446 |
{ |
{ |
447 |
u8 i; |
u8 i; |
448 |
u8 config; |
u8 config; |
449 |
if (!strcmp(data, "CONFIG")) { |
if (!strcmp(name, "CONFIG")) { |
450 |
i = CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
i = CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
451 |
+ CCS_MAX_MAC_CATEGORY_INDEX; |
+ CCS_MAX_MAC_CATEGORY_INDEX; |
452 |
config = profile->default_config; |
config = profile->default_config; |
453 |
} else if (ccs_str_starts(&data, "CONFIG::")) { |
} else if (ccs_str_starts(&name, "CONFIG::")) { |
454 |
config = 0; |
config = 0; |
455 |
for (i = 0; i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
for (i = 0; i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
456 |
+ CCS_MAX_MAC_CATEGORY_INDEX; i++) { |
+ CCS_MAX_MAC_CATEGORY_INDEX; i++) { |
457 |
if (strcmp(data, ccs_mac_keywords[i])) |
if (strcmp(name, ccs_mac_keywords[i])) |
458 |
continue; |
continue; |
459 |
config = profile->config[i]; |
config = profile->config[i]; |
460 |
break; |
break; |
465 |
} else { |
} else { |
466 |
return -EINVAL; |
return -EINVAL; |
467 |
} |
} |
468 |
if (use_default) { |
if (strstr(value, "use_default")) { |
469 |
config = CCS_CONFIG_USE_DEFAULT; |
config = CCS_CONFIG_USE_DEFAULT; |
470 |
} else { |
} else { |
471 |
u8 mode; |
u8 mode; |
472 |
for (mode = 0; mode < CCS_CONFIG_MAX_MODE; mode--) |
for (mode = 0; mode < CCS_CONFIG_MAX_MODE; mode++) |
473 |
if (strstr(cp, ccs_mode[mode])) |
if (strstr(value, ccs_mode[mode])) |
474 |
/* |
/* |
475 |
* Update lower 3 bits in order to distinguish |
* Update lower 3 bits in order to distinguish |
476 |
* 'config' from 'CCS_CONFIG_USE_DEAFULT'. |
* 'config' from 'CCS_CONFIG_USE_DEAFULT'. |
477 |
*/ |
*/ |
478 |
config = (config & ~7) | mode; |
config = (config & ~7) | mode; |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
|
479 |
if (config != CCS_CONFIG_USE_DEFAULT) { |
if (config != CCS_CONFIG_USE_DEFAULT) { |
480 |
switch (ccs_find_yesno(cp, "grant_log")) { |
switch (ccs_find_yesno(value, "verbose")) { |
481 |
|
case 1: |
482 |
|
config |= CCS_CONFIG_VERBOSE; |
483 |
|
break; |
484 |
|
case 0: |
485 |
|
config &= ~CCS_CONFIG_VERBOSE; |
486 |
|
break; |
487 |
|
} |
488 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
489 |
|
switch (ccs_find_yesno(value, "grant_log")) { |
490 |
case 1: |
case 1: |
491 |
config |= CCS_CONFIG_WANT_GRANT_LOG; |
config |= CCS_CONFIG_WANT_GRANT_LOG; |
492 |
break; |
break; |
494 |
config &= ~CCS_CONFIG_WANT_GRANT_LOG; |
config &= ~CCS_CONFIG_WANT_GRANT_LOG; |
495 |
break; |
break; |
496 |
} |
} |
497 |
switch (ccs_find_yesno(cp, "reject_log")) { |
switch (ccs_find_yesno(value, "reject_log")) { |
498 |
case 1: |
case 1: |
499 |
config |= CCS_CONFIG_WANT_REJECT_LOG; |
config |= CCS_CONFIG_WANT_REJECT_LOG; |
500 |
break; |
break; |
502 |
config &= ~CCS_CONFIG_WANT_REJECT_LOG; |
config &= ~CCS_CONFIG_WANT_REJECT_LOG; |
503 |
break; |
break; |
504 |
} |
} |
|
} |
|
505 |
#endif |
#endif |
506 |
|
} |
507 |
} |
} |
508 |
if (i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
if (i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
509 |
+ CCS_MAX_MAC_CATEGORY_INDEX) |
+ CCS_MAX_MAC_CATEGORY_INDEX) |
523 |
static int ccs_write_profile(struct ccs_io_buffer *head) |
static int ccs_write_profile(struct ccs_io_buffer *head) |
524 |
{ |
{ |
525 |
char *data = head->write_buf; |
char *data = head->write_buf; |
526 |
bool use_default = false; |
unsigned int i; |
527 |
char *cp; |
char *cp; |
|
int i; |
|
528 |
struct ccs_profile *profile; |
struct ccs_profile *profile; |
529 |
if (sscanf(data, "PROFILE_VERSION=%u", &ccs_profile_version) == 1) |
if (sscanf(data, "PROFILE_VERSION=%u", &ccs_profile_version) == 1) |
530 |
return 0; |
return 0; |
531 |
i = simple_strtoul(data, &cp, 10); |
i = simple_strtoul(data, &cp, 10); |
532 |
if (data == cp) { |
if (*cp != '-') |
533 |
profile = &ccs_default_profile; |
return -EINVAL; |
534 |
} else { |
data = cp + 1; |
535 |
if (*cp != '-') |
profile = ccs_assign_profile(i); |
536 |
return -EINVAL; |
if (!profile) |
537 |
data = cp + 1; |
return -EINVAL; |
|
profile = ccs_assign_profile(i); |
|
|
if (!profile) |
|
|
return -EINVAL; |
|
|
} |
|
538 |
cp = strchr(data, '='); |
cp = strchr(data, '='); |
539 |
if (!cp) |
if (!cp) |
540 |
return -EINVAL; |
return -EINVAL; |
541 |
*cp++ = '\0'; |
*cp++ = '\0'; |
|
if (profile != &ccs_default_profile) |
|
|
use_default = strstr(cp, "use_default") != NULL; |
|
542 |
if (ccs_str_starts(&data, "PREFERENCE::")) { |
if (ccs_str_starts(&data, "PREFERENCE::")) { |
543 |
ccs_set_pref(cp, data, profile, use_default); |
ccs_set_pref(data, cp, profile); |
544 |
return 0; |
return 0; |
545 |
} |
} |
|
if (profile == &ccs_default_profile) |
|
|
return -EINVAL; |
|
546 |
if (!strcmp(data, "COMMENT")) { |
if (!strcmp(data, "COMMENT")) { |
547 |
const struct ccs_path_info *old_comment = profile->comment; |
const struct ccs_path_info *old_comment = profile->comment; |
548 |
profile->comment = ccs_get_name(cp); |
profile->comment = ccs_get_name(cp); |
549 |
ccs_put_name(old_comment); |
ccs_put_name(old_comment); |
550 |
return 0; |
return 0; |
551 |
} |
} |
552 |
return ccs_set_mode(cp, data, profile, use_default); |
return ccs_set_mode(data, cp, profile); |
553 |
} |
} |
554 |
|
|
555 |
static bool ccs_print_preference(struct ccs_io_buffer *head, const int idx) |
static void ccs_print_preference(struct ccs_io_buffer *head, const int index) |
556 |
{ |
{ |
557 |
struct ccs_preference *pref = &ccs_default_profile.preference; |
struct ccs_profile *profile = ccs_profile_ptr[index]; |
558 |
const struct ccs_profile *profile = idx >= 0 ? |
struct ccs_preference *pref = &profile->preference; |
559 |
ccs_profile_ptr[idx] : NULL; |
ccs_io_printf(head, "%u-PREFERENCE::%s={ " |
|
char buffer[16] = ""; |
|
|
if (profile) { |
|
|
buffer[sizeof(buffer) - 1] = '\0'; |
|
|
snprintf(buffer, sizeof(buffer) - 1, "%u-", idx); |
|
|
} |
|
|
if (profile) { |
|
|
pref = profile->audit; |
|
|
if (pref == &ccs_default_profile.preference) |
|
|
pref = NULL; |
|
|
} |
|
|
if (pref && !ccs_io_printf(head, "%sPREFERENCE::%s={ " |
|
560 |
#ifdef CONFIG_CCSECURITY_AUDIT |
#ifdef CONFIG_CCSECURITY_AUDIT |
561 |
"max_grant_log=%u max_reject_log=%u " |
"max_grant_log=%u max_reject_log=%u " |
562 |
#endif |
#endif |
563 |
"task_info=%s path_info=%s }\n", buffer, |
"task_info=%s path_info=%s }\n", index, |
564 |
"audit", |
"audit", |
565 |
#ifdef CONFIG_CCSECURITY_AUDIT |
#ifdef CONFIG_CCSECURITY_AUDIT |
566 |
pref->audit_max_grant_log, |
pref->audit_max_grant_log, |
567 |
pref->audit_max_reject_log, |
pref->audit_max_reject_log, |
568 |
#endif |
#endif |
569 |
ccs_yesno(pref->audit_task_info), |
ccs_yesno(pref->audit_task_info), |
570 |
ccs_yesno(pref->audit_path_info))) |
ccs_yesno(pref->audit_path_info)); |
571 |
return false; |
ccs_io_printf(head, "%u-PREFERENCE::%s={ " |
572 |
if (profile) { |
"max_entry=%u exec.realpath=%s " |
573 |
pref = profile->learning; |
"exec.argv0=%s symlink.target=%s }\n", |
574 |
if (pref == &ccs_default_profile.preference) |
index, "learning", |
575 |
pref = NULL; |
pref->learning_max_entry, |
576 |
} |
ccs_yesno(pref->learning_exec_realpath), |
577 |
if (pref && !ccs_io_printf(head, "%sPREFERENCE::%s={ " |
ccs_yesno(pref->learning_exec_argv0), |
578 |
"verbose=%s max_entry=%u exec.realpath=%s " |
ccs_yesno(pref->learning_symlink_target)); |
579 |
"exec.argv0=%s symlink.target=%s }\n", |
ccs_io_printf(head, "%u-PREFERENCE::%s={ penalty=%u }\n", index, |
580 |
buffer, "learning", |
"enforcing", pref->enforcing_penalty); |
581 |
ccs_yesno(pref->learning_verbose), |
} |
582 |
pref->learning_max_entry, |
|
583 |
ccs_yesno(pref->learning_exec_realpath), |
static void ccs_print_config(struct ccs_io_buffer *head, const u8 config) |
584 |
ccs_yesno(pref->learning_exec_argv0), |
{ |
585 |
ccs_yesno(pref->learning_symlink_target))) |
ccs_io_printf(head, "={ mode=%s verbose=%s", ccs_mode[config & 3], |
586 |
return false; |
ccs_yesno(config & CCS_CONFIG_VERBOSE)); |
587 |
if (profile) { |
#ifdef CONFIG_CCSECURITY_AUDIT |
588 |
pref = profile->permissive; |
ccs_io_printf(head, " grant_log=%s reject_log=%s", |
589 |
if (pref == &ccs_default_profile.preference) |
ccs_yesno(config & CCS_CONFIG_WANT_GRANT_LOG), |
590 |
pref = NULL; |
ccs_yesno(config & CCS_CONFIG_WANT_REJECT_LOG)); |
591 |
} |
#endif |
592 |
if (pref && !ccs_io_printf(head, "%sPREFERENCE::%s={ verbose=%s }\n", |
ccs_set_string(head, " }\n"); |
|
buffer, "permissive", |
|
|
ccs_yesno(pref->permissive_verbose))) |
|
|
return false; |
|
|
if (profile) { |
|
|
pref = profile->enforcing; |
|
|
if (pref == &ccs_default_profile.preference) |
|
|
pref = NULL; |
|
|
} |
|
|
return !pref || ccs_io_printf(head, "%sPREFERENCE::%s={ verbose=%s " |
|
|
"penalty=%u }\n", buffer, "enforcing", |
|
|
ccs_yesno(pref->enforcing_verbose), |
|
|
pref->enforcing_penalty); |
|
593 |
} |
} |
594 |
|
|
595 |
/** |
/** |
599 |
*/ |
*/ |
600 |
static void ccs_read_profile(struct ccs_io_buffer *head) |
static void ccs_read_profile(struct ccs_io_buffer *head) |
601 |
{ |
{ |
602 |
int index; |
u8 index; |
603 |
if (head->read_eof) |
const struct ccs_profile *profile; |
604 |
return; |
next: |
605 |
if (head->read_bit) |
index = head->r.index; |
606 |
goto body; |
profile = ccs_profile_ptr[index]; |
607 |
ccs_io_printf(head, "PROFILE_VERSION=%s\n", "20090903"); |
switch (head->r.step) { |
608 |
ccs_print_preference(head, -1); |
case 0: |
609 |
head->read_bit = 1; |
ccs_io_printf(head, "PROFILE_VERSION=%s\n", "20100903"); |
610 |
body: |
head->r.step++; |
611 |
for (index = head->read_step; index < CCS_MAX_PROFILES; index++) { |
break; |
612 |
bool done; |
case 1: |
613 |
u8 config; |
for ( ; head->r.index < CCS_MAX_PROFILES; |
614 |
int i; |
head->r.index++) |
615 |
int pos; |
if (ccs_profile_ptr[head->r.index]) |
616 |
const struct ccs_profile *profile = ccs_profile_ptr[index]; |
break; |
617 |
const struct ccs_path_info *comment; |
if (head->r.index == CCS_MAX_PROFILES) |
618 |
head->read_step = index; |
return; |
619 |
if (!profile) |
head->r.step++; |
620 |
continue; |
break; |
621 |
pos = head->read_avail; |
case 2: |
622 |
comment = profile->comment; |
{ |
623 |
done = ccs_io_printf(head, "%u-COMMENT=%s\n", index, |
const struct ccs_path_info *comment = profile->comment; |
624 |
comment ? comment->name : ""); |
ccs_io_printf(head, "%u-COMMENT=", index); |
625 |
if (!done) |
ccs_set_string(head, comment ? comment->name : ""); |
626 |
goto out; |
ccs_set_lf(head); |
627 |
config = profile->default_config; |
head->r.step++; |
628 |
#ifdef CONFIG_CCSECURITY_AUDIT |
} |
629 |
if (!ccs_io_printf(head, "%u-%s%s={ mode=%s " |
break; |
630 |
"grant_log=%s reject_log=%s }\n", index, |
case 3: |
631 |
"CONFIG", "", ccs_mode[config & 3], |
{ |
632 |
ccs_yesno(config & |
ccs_io_printf(head, "%u-%s", index, "CONFIG"); |
633 |
CCS_CONFIG_WANT_GRANT_LOG), |
ccs_print_config(head, profile->default_config); |
634 |
ccs_yesno(config & |
head->r.bit = 0; |
635 |
CCS_CONFIG_WANT_REJECT_LOG))) |
head->r.step++; |
636 |
goto out; |
} |
637 |
#else |
break; |
638 |
if (!ccs_io_printf(head, "%u-%s%s={ mode=%s }\n", index, |
case 4: |
639 |
"CONFIG", "", ccs_mode[config & 3])) |
for ( ; head->r.bit < CCS_MAX_MAC_INDEX |
640 |
goto out; |
+ CCS_MAX_CAPABILITY_INDEX |
641 |
#endif |
+ CCS_MAX_MAC_CATEGORY_INDEX; head->r.bit++) { |
642 |
for (i = 0; i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
const u8 i = head->r.bit; |
643 |
+ CCS_MAX_MAC_CATEGORY_INDEX; i++) { |
const u8 config = profile->config[i]; |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
|
|
const char *g; |
|
|
const char *r; |
|
|
#endif |
|
|
config = profile->config[i]; |
|
644 |
if (config == CCS_CONFIG_USE_DEFAULT) |
if (config == CCS_CONFIG_USE_DEFAULT) |
645 |
continue; |
continue; |
646 |
#ifdef CONFIG_CCSECURITY_AUDIT |
ccs_io_printf(head, "%u-%s%s", index, "CONFIG::", |
647 |
g = ccs_yesno(config & CCS_CONFIG_WANT_GRANT_LOG); |
ccs_mac_keywords[i]); |
648 |
r = ccs_yesno(config & CCS_CONFIG_WANT_REJECT_LOG); |
ccs_print_config(head, config); |
649 |
if (!ccs_io_printf(head, "%u-%s%s={ mode=%s " |
head->r.bit++; |
650 |
"grant_log=%s reject_log=%s }\n", |
break; |
651 |
index, "CONFIG::", |
} |
652 |
ccs_mac_keywords[i], |
if (head->r.bit == CCS_MAX_MAC_INDEX |
653 |
ccs_mode[config & 3], g, r)) |
+ CCS_MAX_CAPABILITY_INDEX |
654 |
goto out; |
+ CCS_MAX_MAC_CATEGORY_INDEX) { |
655 |
#else |
ccs_print_preference(head, index); |
656 |
if (!ccs_io_printf(head, "%u-%s%s={ mode=%s }\n", |
head->r.index++; |
657 |
index, "CONFIG::", |
head->r.step = 1; |
|
ccs_mac_keywords[i], |
|
|
ccs_mode[config & 3])) |
|
|
goto out; |
|
|
#endif |
|
658 |
} |
} |
|
if (!ccs_print_preference(head, index)) |
|
|
goto out; |
|
|
continue; |
|
|
out: |
|
|
head->read_avail = pos; |
|
659 |
break; |
break; |
660 |
} |
} |
661 |
if (index == CCS_MAX_PROFILES) |
if (ccs_flush(head)) |
662 |
head->read_eof = true; |
goto next; |
663 |
} |
} |
664 |
|
|
665 |
static bool ccs_same_manager_entry(const struct ccs_acl_head *a, |
static bool ccs_same_manager(const struct ccs_acl_head *a, |
666 |
const struct ccs_acl_head *b) |
const struct ccs_acl_head *b) |
667 |
{ |
{ |
668 |
return container_of(a, struct ccs_manager, head)->manager |
return container_of(a, struct ccs_manager, head)->manager |
669 |
== container_of(b, struct ccs_manager, head)->manager; |
== container_of(b, struct ccs_manager, head)->manager; |
693 |
if (!e.manager) |
if (!e.manager) |
694 |
return error; |
return error; |
695 |
error = ccs_update_policy(&e.head, sizeof(e), is_delete, |
error = ccs_update_policy(&e.head, sizeof(e), is_delete, |
696 |
CCS_ID_MANAGER, ccs_same_manager_entry); |
&ccs_policy_list[CCS_ID_MANAGER], |
697 |
|
ccs_same_manager); |
698 |
ccs_put_name(e.manager); |
ccs_put_name(e.manager); |
699 |
return error; |
return error; |
700 |
} |
} |
726 |
*/ |
*/ |
727 |
static void ccs_read_manager(struct ccs_io_buffer *head) |
static void ccs_read_manager(struct ccs_io_buffer *head) |
728 |
{ |
{ |
729 |
struct list_head *pos; |
if (head->r.eof) |
|
if (head->read_eof) |
|
730 |
return; |
return; |
731 |
list_for_each_cookie(pos, head->read_var2, |
list_for_each_cookie(head->r.acl, &ccs_policy_list[CCS_ID_MANAGER]) { |
732 |
&ccs_policy_list[CCS_ID_MANAGER]) { |
struct ccs_manager *ptr = |
733 |
struct ccs_manager *ptr |
list_entry(head->r.acl, typeof(*ptr), head.list); |
|
= list_entry(pos, typeof(*ptr), head.list); |
|
734 |
if (ptr->head.is_deleted) |
if (ptr->head.is_deleted) |
735 |
continue; |
continue; |
736 |
if (!ccs_io_printf(head, "%s\n", ptr->manager->name)) |
if (!ccs_flush(head)) |
737 |
return; |
return; |
738 |
|
ccs_set_string(head, ptr->manager->name); |
739 |
|
ccs_set_lf(head); |
740 |
} |
} |
741 |
head->read_eof = true; |
head->r.eof = true; |
742 |
} |
} |
743 |
|
|
744 |
/** |
/** |
794 |
} |
} |
795 |
|
|
796 |
/** |
/** |
|
* ccs_find_condition_part - Find condition part from the statement. |
|
|
* |
|
|
* @data: String to parse. |
|
|
* |
|
|
* Returns pointer to the condition part if it was found in the statement, |
|
|
* NULL otherwise. |
|
|
*/ |
|
|
static char *ccs_find_condition_part(char *data) |
|
|
{ |
|
|
char *cp = strstr(data, " if "); |
|
|
if (!cp) |
|
|
cp = strstr(data, " ; set "); |
|
|
if (cp) |
|
|
*cp++ = '\0'; |
|
|
return cp; |
|
|
} |
|
|
|
|
|
/** |
|
797 |
* ccs_select_one - Parse select command. |
* ccs_select_one - Parse select command. |
798 |
* |
* |
799 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
808 |
unsigned int pid; |
unsigned int pid; |
809 |
struct ccs_domain_info *domain = NULL; |
struct ccs_domain_info *domain = NULL; |
810 |
bool global_pid = false; |
bool global_pid = false; |
811 |
if (!strcmp(data, "allow_execute")) { |
if (!strcmp(data, "execute")) { |
812 |
head->read_execute_only = true; |
head->r.print_execute_only = true; |
813 |
return true; |
return true; |
814 |
} |
} |
815 |
if (sscanf(data, "pid=%u", &pid) == 1 || |
if (sscanf(data, "pid=%u", &pid) == 1 || |
833 |
domain = ccs_find_domain(data + 7); |
domain = ccs_find_domain(data + 7); |
834 |
} else |
} else |
835 |
return false; |
return false; |
836 |
head->write_var1 = domain; |
head->w.domain = domain; |
837 |
/* Accessing read_buf is safe because head->io_sem is held. */ |
/* Accessing read_buf is safe because head->io_sem is held. */ |
838 |
if (!head->read_buf) |
if (!head->read_buf) |
839 |
return true; /* Do nothing if open(O_WRONLY). */ |
return true; /* Do nothing if open(O_WRONLY). */ |
840 |
head->read_avail = 0; |
memset(&head->r, 0, sizeof(head->r)); |
841 |
|
head->r.print_this_domain_only = true; |
842 |
|
if (domain) |
843 |
|
head->r.domain = &domain->list; |
844 |
|
else |
845 |
|
head->r.eof = true; |
846 |
ccs_io_printf(head, "# select %s\n", data); |
ccs_io_printf(head, "# select %s\n", data); |
847 |
head->read_single_domain = true; |
if (domain && domain->is_deleted) |
848 |
head->read_eof = !domain; |
ccs_set_string(head, "# This is a deleted domain.\n"); |
|
if (domain) { |
|
|
struct ccs_domain_info *d; |
|
|
head->read_var1 = NULL; |
|
|
list_for_each_entry_rcu(d, &ccs_domain_list, list) { |
|
|
if (d == domain) |
|
|
break; |
|
|
head->read_var1 = &d->list; |
|
|
} |
|
|
head->read_var2 = NULL; |
|
|
head->read_bit = 0; |
|
|
head->read_step = 0; |
|
|
if (domain->is_deleted) |
|
|
ccs_io_printf(head, "# This is a deleted domain.\n"); |
|
|
} |
|
849 |
return true; |
return true; |
850 |
} |
} |
851 |
|
|
852 |
|
static bool ccs_same_handler_acl(const struct ccs_acl_info *a, |
853 |
|
const struct ccs_acl_info *b) |
854 |
|
{ |
855 |
|
const struct ccs_handler_acl *p1 = container_of(a, typeof(*p1), head); |
856 |
|
const struct ccs_handler_acl *p2 = container_of(b, typeof(*p2), head); |
857 |
|
return p1->handler == p2->handler; |
858 |
|
} |
859 |
|
|
860 |
|
static bool ccs_same_task_acl(const struct ccs_acl_info *a, |
861 |
|
const struct ccs_acl_info *b) |
862 |
|
{ |
863 |
|
const struct ccs_task_acl *p1 = container_of(a, typeof(*p1), head); |
864 |
|
const struct ccs_task_acl *p2 = container_of(b, typeof(*p2), head); |
865 |
|
return p1->domainname == p2->domainname; |
866 |
|
} |
867 |
|
|
868 |
|
/** |
869 |
|
* ccs_write_task - Update task related list. |
870 |
|
* |
871 |
|
* @param: Pointer to "struct ccs_acl_param". |
872 |
|
* |
873 |
|
* Returns 0 on success, negative value otherwise. |
874 |
|
*/ |
875 |
|
static int ccs_write_task(struct ccs_acl_param *param) |
876 |
|
{ |
877 |
|
int error; |
878 |
|
const bool is_auto = ccs_str_starts(¶m->data, |
879 |
|
"auto_domain_transition "); |
880 |
|
if (!is_auto && !ccs_str_starts(¶m->data, |
881 |
|
"manual_domain_transition ")) { |
882 |
|
struct ccs_handler_acl e = { }; |
883 |
|
char *handler; |
884 |
|
if (ccs_str_starts(¶m->data, "auto_execute_handler ")) |
885 |
|
e.head.type = CCS_TYPE_AUTO_EXECUTE_HANDLER; |
886 |
|
else if (ccs_str_starts(¶m->data, |
887 |
|
"denied_execute_handler ")) |
888 |
|
e.head.type = CCS_TYPE_DENIED_EXECUTE_HANDLER; |
889 |
|
else |
890 |
|
return -EINVAL; |
891 |
|
handler = ccs_read_token(param); |
892 |
|
if (!ccs_correct_path(handler)) |
893 |
|
return -EINVAL; |
894 |
|
e.handler = ccs_get_name(handler); |
895 |
|
if (!e.handler) |
896 |
|
return -ENOMEM; |
897 |
|
if (e.handler->is_patterned) |
898 |
|
error = -EINVAL; /* No patterns allowed. */ |
899 |
|
else |
900 |
|
error = ccs_update_domain(&e.head, sizeof(e), param, |
901 |
|
ccs_same_handler_acl, NULL); |
902 |
|
ccs_put_name(e.handler); |
903 |
|
} else { |
904 |
|
struct ccs_task_acl e = { |
905 |
|
.head.type = is_auto ? |
906 |
|
CCS_TYPE_AUTO_TASK_ACL : CCS_TYPE_MANUAL_TASK_ACL, |
907 |
|
.domainname = ccs_get_domainname(param), |
908 |
|
}; |
909 |
|
if (!e.domainname) |
910 |
|
error = -EINVAL; |
911 |
|
else |
912 |
|
error = ccs_update_domain(&e.head, sizeof(e), param, |
913 |
|
ccs_same_task_acl, NULL); |
914 |
|
ccs_put_name(e.domainname); |
915 |
|
} |
916 |
|
return error; |
917 |
|
} |
918 |
|
|
919 |
static int ccs_write_domain2(char *data, struct ccs_domain_info *domain, |
static int ccs_write_domain2(char *data, struct ccs_domain_info *domain, |
920 |
const bool is_delete) |
const bool is_delete) |
921 |
{ |
{ |
922 |
|
struct ccs_acl_param param = { |
923 |
|
.data = data, |
924 |
|
.domain = domain, |
925 |
|
.is_delete = is_delete, |
926 |
|
}; |
927 |
static const struct { |
static const struct { |
928 |
const char *keyword; |
const char *keyword; |
929 |
int (*write) (char *, struct ccs_domain_info *, |
int (*write) (struct ccs_acl_param *); |
930 |
struct ccs_condition *, const bool); |
} ccs_callback[7] = { |
931 |
} ccs_callback[5] = { |
{ "file ", ccs_write_file }, |
932 |
{ CCS_KEYWORD_ALLOW_NETWORK, ccs_write_network }, |
{ "network inet ", ccs_write_inet_network }, |
933 |
{ CCS_KEYWORD_ALLOW_ENV, ccs_write_env }, |
{ "network unix ", ccs_write_unix_network }, |
934 |
{ CCS_KEYWORD_ALLOW_CAPABILITY, ccs_write_capability }, |
{ "misc ", ccs_write_misc }, |
935 |
{ CCS_KEYWORD_ALLOW_SIGNAL, ccs_write_signal }, |
{ "capability ", ccs_write_capability }, |
936 |
{ CCS_KEYWORD_ALLOW_MOUNT, ccs_write_mount } |
{ "ipc ", ccs_write_ipc }, |
937 |
|
{ "task ", ccs_write_task }, |
938 |
}; |
}; |
|
int (*write) (char *, struct ccs_domain_info *, struct ccs_condition *, |
|
|
const bool) = ccs_write_file; |
|
|
int error; |
|
939 |
u8 i; |
u8 i; |
940 |
struct ccs_condition *cond = NULL; |
for (i = 0; i < 7; i++) { |
941 |
char *cp = ccs_find_condition_part(data); |
if (!ccs_str_starts(¶m.data, ccs_callback[i].keyword)) |
|
if (cp) { |
|
|
cond = ccs_get_condition(cp); |
|
|
if (!cond) |
|
|
return -EINVAL; |
|
|
} |
|
|
for (i = 0; i < 5; i++) { |
|
|
if (!ccs_str_starts(&data, ccs_callback[i].keyword)) |
|
942 |
continue; |
continue; |
943 |
write = ccs_callback[i].write; |
return ccs_callback[i].write(¶m); |
|
break; |
|
944 |
} |
} |
945 |
error = write(data, domain, cond, is_delete); |
return -EINVAL; |
|
if (cond) |
|
|
ccs_put_condition(cond); |
|
|
return error; |
|
946 |
} |
} |
947 |
|
|
948 |
static const char *ccs_dif[CCS_MAX_DOMAIN_INFO_FLAGS] = { |
static const char *ccs_dif[CCS_MAX_DOMAIN_INFO_FLAGS] = { |
949 |
[CCS_DIF_QUOTA_WARNED] = CCS_KEYWORD_QUOTA_EXCEEDED "\n", |
[CCS_DIF_QUOTA_WARNED] = CCS_KEYWORD_QUOTA_EXCEEDED "\n", |
|
[CCS_DIF_IGNORE_GLOBAL] = CCS_KEYWORD_IGNORE_GLOBAL "\n", |
|
|
[CCS_DIF_IGNORE_GLOBAL_ALLOW_READ] |
|
|
= CCS_KEYWORD_IGNORE_GLOBAL_ALLOW_READ "\n", |
|
|
[CCS_DIF_IGNORE_GLOBAL_ALLOW_ENV] |
|
|
= CCS_KEYWORD_IGNORE_GLOBAL_ALLOW_ENV "\n", |
|
950 |
[CCS_DIF_TRANSITION_FAILED] = CCS_KEYWORD_TRANSITION_FAILED "\n" |
[CCS_DIF_TRANSITION_FAILED] = CCS_KEYWORD_TRANSITION_FAILED "\n" |
951 |
}; |
}; |
952 |
|
|
960 |
static int ccs_write_domain(struct ccs_io_buffer *head) |
static int ccs_write_domain(struct ccs_io_buffer *head) |
961 |
{ |
{ |
962 |
char *data = head->write_buf; |
char *data = head->write_buf; |
963 |
struct ccs_domain_info *domain = head->write_var1; |
struct ccs_domain_info *domain = head->w.domain; |
964 |
bool is_delete = false; |
bool is_delete = false; |
965 |
bool is_select = false; |
bool is_select = false; |
966 |
unsigned int profile; |
unsigned int profile; |
980 |
else if (is_select) |
else if (is_select) |
981 |
domain = ccs_find_domain(data); |
domain = ccs_find_domain(data); |
982 |
else |
else |
983 |
domain = ccs_assign_domain(data, 0); |
domain = ccs_assign_domain(data, 0, 0, false); |
984 |
head->write_var1 = domain; |
head->w.domain = domain; |
985 |
return 0; |
return 0; |
986 |
} |
} |
987 |
if (!domain) |
if (!domain) |
993 |
domain->profile = (u8) profile; |
domain->profile = (u8) profile; |
994 |
return 0; |
return 0; |
995 |
} |
} |
996 |
|
if (sscanf(data, CCS_KEYWORD_USE_GROUP "%u", &profile) == 1 |
997 |
|
&& profile < CCS_MAX_ACL_GROUPS) { |
998 |
|
domain->group = (u8) profile; |
999 |
|
return 0; |
1000 |
|
} |
1001 |
for (profile = 0; profile < CCS_MAX_DOMAIN_INFO_FLAGS; profile++) { |
for (profile = 0; profile < CCS_MAX_DOMAIN_INFO_FLAGS; profile++) { |
1002 |
const char *cp = ccs_dif[profile]; |
const char *cp = ccs_dif[profile]; |
1003 |
if (strncmp(data, cp, strlen(cp) - 1)) |
if (strncmp(data, cp, strlen(cp) - 1)) |
1013 |
* |
* |
1014 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1015 |
* @ptr: Pointer to "struct ccs_name_union". |
* @ptr: Pointer to "struct ccs_name_union". |
|
* |
|
|
* Returns true on success, false otherwise. |
|
1016 |
*/ |
*/ |
1017 |
static bool ccs_print_name_union(struct ccs_io_buffer *head, |
static void ccs_print_name_union(struct ccs_io_buffer *head, |
1018 |
const struct ccs_name_union *ptr) |
const struct ccs_name_union *ptr) |
1019 |
{ |
{ |
1020 |
int pos = head->read_avail; |
const bool cond = head->r.print_cond_part; |
1021 |
if (pos && head->read_buf[pos - 1] == ' ') |
if (!cond) |
1022 |
head->read_avail--; |
ccs_set_space(head); |
1023 |
if (ptr->is_group) |
if (ptr->is_group) { |
1024 |
return ccs_io_printf(head, " @%s", |
ccs_set_string(head, "@"); |
1025 |
ptr->group->group_name->name); |
ccs_set_string(head, ptr->group->group_name->name); |
1026 |
return ccs_io_printf(head, " %s", ptr->filename->name); |
} else { |
1027 |
} |
if (cond) |
1028 |
|
ccs_set_string(head, "\""); |
1029 |
/** |
ccs_set_string(head, ptr->filename->name); |
1030 |
* ccs_print_name_union_quoted - Print a ccs_name_union with double quotes. |
if (cond) |
1031 |
* |
ccs_set_string(head, "\""); |
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_name_union". |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_name_union_quoted(struct ccs_io_buffer *head, |
|
|
const struct ccs_name_union *ptr) |
|
|
{ |
|
|
if (ptr->is_group) |
|
|
return ccs_io_printf(head, "@%s", |
|
|
ptr->group->group_name->name); |
|
|
return ccs_io_printf(head, "\"%s\"", ptr->filename->name); |
|
|
} |
|
|
|
|
|
static void ccs_print_number(char *buffer, int buffer_len, |
|
|
const struct ccs_number_union *ptr) |
|
|
{ |
|
|
int i; |
|
|
unsigned long min = ptr->values[0]; |
|
|
const unsigned long max = ptr->values[1]; |
|
|
u8 min_type = ptr->value_type[0]; |
|
|
const u8 max_type = ptr->value_type[1]; |
|
|
memset(buffer, 0, buffer_len); |
|
|
buffer_len -= 2; |
|
|
for (i = 0; i < 2; i++) { |
|
|
int len; |
|
|
switch (min_type) { |
|
|
case CCS_VALUE_TYPE_HEXADECIMAL: |
|
|
snprintf(buffer, buffer_len, "0x%lX", min); |
|
|
break; |
|
|
case CCS_VALUE_TYPE_OCTAL: |
|
|
snprintf(buffer, buffer_len, "0%lo", min); |
|
|
break; |
|
|
default: |
|
|
snprintf(buffer, buffer_len, "%lu", min); |
|
|
break; |
|
|
} |
|
|
if (min == max && min_type == max_type) |
|
|
break; |
|
|
len = strlen(buffer); |
|
|
buffer[len++] = '-'; |
|
|
buffer += len; |
|
|
buffer_len -= len; |
|
|
min_type = max_type; |
|
|
min = max; |
|
1032 |
} |
} |
1033 |
} |
} |
1034 |
|
|
1035 |
/** |
/** |
|
* ccs_print_number_union_common - Print a ccs_number_union. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_number_union". |
|
|
* @need_space: True if a space character is needed. |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_number_union_common(struct ccs_io_buffer *head, |
|
|
const struct ccs_number_union *ptr, |
|
|
const bool need_space) |
|
|
{ |
|
|
char buffer[128]; |
|
|
if (need_space && !ccs_io_printf(head, " ")) |
|
|
return false; |
|
|
if (ptr->is_group) |
|
|
return ccs_io_printf(head, "@%s", |
|
|
ptr->group->group_name->name); |
|
|
ccs_print_number(buffer, sizeof(buffer), ptr); |
|
|
return ccs_io_printf(head, "%s", buffer); |
|
|
} |
|
|
|
|
|
/** |
|
1036 |
* ccs_print_number_union - Print a ccs_number_union. |
* ccs_print_number_union - Print a ccs_number_union. |
1037 |
* |
* |
1038 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1039 |
* @ptr: Pointer to "struct ccs_number_union". |
* @ptr: Pointer to "struct ccs_number_union". |
|
* |
|
|
* Returns true on success, false otherwise. |
|
1040 |
*/ |
*/ |
1041 |
static bool ccs_print_number_union(struct ccs_io_buffer *head, |
static void ccs_print_number_union(struct ccs_io_buffer *head, |
1042 |
const struct ccs_number_union *ptr) |
const struct ccs_number_union *ptr) |
1043 |
{ |
{ |
1044 |
return ccs_print_number_union_common(head, ptr, true); |
if (!head->r.print_cond_part) |
1045 |
} |
ccs_set_space(head); |
1046 |
|
if (ptr->is_group) { |
1047 |
/** |
ccs_set_string(head, "@"); |
1048 |
* ccs_print_number_union_nospace - Print a ccs_number_union without a space character. |
ccs_set_string(head, ptr->group->group_name->name); |
1049 |
* |
} else { |
1050 |
* @head: Pointer to "struct ccs_io_buffer". |
int i; |
1051 |
* @ptr: Pointer to "struct ccs_number_union". |
unsigned long min = ptr->values[0]; |
1052 |
* |
const unsigned long max = ptr->values[1]; |
1053 |
* Returns true on success, false otherwise. |
u8 min_type = ptr->value_type[0]; |
1054 |
*/ |
const u8 max_type = ptr->value_type[1]; |
1055 |
static bool ccs_print_number_union_nospace(struct ccs_io_buffer *head, |
char buffer[128]; |
1056 |
const struct ccs_number_union *ptr) |
buffer[0] = '\0'; |
1057 |
{ |
for (i = 0; i < 2; i++) { |
1058 |
return ccs_print_number_union_common(head, ptr, false); |
switch (min_type) { |
1059 |
|
case CCS_VALUE_TYPE_HEXADECIMAL: |
1060 |
|
ccs_addprintf(buffer, sizeof(buffer), "0x%lX", |
1061 |
|
min); |
1062 |
|
break; |
1063 |
|
case CCS_VALUE_TYPE_OCTAL: |
1064 |
|
ccs_addprintf(buffer, sizeof(buffer), "0%lo", |
1065 |
|
min); |
1066 |
|
break; |
1067 |
|
default: |
1068 |
|
ccs_addprintf(buffer, sizeof(buffer), "%lu", |
1069 |
|
min); |
1070 |
|
break; |
1071 |
|
} |
1072 |
|
if (min == max && min_type == max_type) |
1073 |
|
break; |
1074 |
|
ccs_addprintf(buffer, sizeof(buffer), "-"); |
1075 |
|
min_type = max_type; |
1076 |
|
min = max; |
1077 |
|
} |
1078 |
|
ccs_io_printf(head, "%s", buffer); |
1079 |
|
} |
1080 |
} |
} |
1081 |
|
|
1082 |
/** |
/** |
1083 |
* ccs_print_condition - Print condition part. |
* ccs_print_condition - Print condition part. |
1084 |
* |
* |
1085 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1086 |
* @cond: Pointer to "struct ccs_condition". Maybe NULL. |
* @cond: Pointer to "struct ccs_condition". |
1087 |
* |
* |
1088 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1089 |
*/ |
*/ |
1090 |
static bool ccs_print_condition(struct ccs_io_buffer *head, |
static bool ccs_print_condition(struct ccs_io_buffer *head, |
1091 |
const struct ccs_condition *cond) |
const struct ccs_condition *cond) |
1092 |
{ |
{ |
1093 |
const struct ccs_condition_element *condp; |
switch (head->r.cond_step) { |
1094 |
const struct ccs_number_union *numbers_p; |
case 0: |
1095 |
const struct ccs_name_union *names_p; |
head->r.cond_index = 0; |
1096 |
const struct ccs_argv *argv; |
head->r.cond_step++; |
1097 |
const struct ccs_envp *envp; |
/* fall through */ |
1098 |
u16 condc; |
case 1: |
1099 |
u16 i; |
{ |
1100 |
u16 j; |
const u16 condc = cond->condc; |
1101 |
char buffer[32]; |
const struct ccs_condition_element *condp = |
1102 |
if (!cond) |
(typeof(condp)) (cond + 1); |
1103 |
goto no_condition; |
const struct ccs_number_union *numbers_p = |
1104 |
condc = cond->condc; |
(typeof(numbers_p)) (condp + condc); |
1105 |
condp = (const struct ccs_condition_element *) (cond + 1); |
const struct ccs_name_union *names_p = |
1106 |
numbers_p = (const struct ccs_number_union *) (condp + condc); |
(typeof(names_p)) |
1107 |
names_p = (const struct ccs_name_union *) |
(numbers_p + cond->numbers_count); |
1108 |
(numbers_p + cond->numbers_count); |
const struct ccs_argv *argv = |
1109 |
argv = (const struct ccs_argv *) (names_p + cond->names_count); |
(typeof(argv)) (names_p + cond->names_count); |
1110 |
envp = (const struct ccs_envp *) (argv + cond->argc); |
const struct ccs_envp *envp = |
1111 |
memset(buffer, 0, sizeof(buffer)); |
(typeof(envp)) (argv + cond->argc); |
1112 |
if (condc && !ccs_io_printf(head, "%s", " if")) |
u16 skip; |
1113 |
goto out; |
for (skip = 0; skip < head->r.cond_index; skip++) { |
1114 |
for (i = 0; i < condc; i++) { |
const u8 left = condp->left; |
1115 |
const u8 match = condp->equals; |
const u8 right = condp->right; |
1116 |
const u8 left = condp->left; |
condp++; |
1117 |
const u8 right = condp->right; |
switch (left) { |
1118 |
condp++; |
case CCS_ARGV_ENTRY: |
1119 |
switch (left) { |
argv++; |
1120 |
case CCS_ARGV_ENTRY: |
continue; |
1121 |
if (!ccs_io_printf(head, " exec.argv[%u]%s\"%s\"", |
case CCS_ENVP_ENTRY: |
1122 |
argv->index, argv->is_not ? |
envp++; |
1123 |
"!=" : "=", argv->value->name)) |
continue; |
1124 |
goto out; |
case CCS_NUMBER_UNION: |
1125 |
argv++; |
numbers_p++; |
1126 |
continue; |
break; |
1127 |
case CCS_ENVP_ENTRY: |
} |
1128 |
if (!ccs_io_printf(head, " exec.envp[\"%s\"]%s", |
switch (right) { |
1129 |
envp->name->name, envp->is_not ? |
case CCS_NAME_UNION: |
1130 |
"!=" : "=")) |
names_p++; |
1131 |
goto out; |
break; |
1132 |
if (envp->value) { |
case CCS_NUMBER_UNION: |
1133 |
if (!ccs_io_printf(head, "\"%s\"", |
numbers_p++; |
1134 |
envp->value->name)) |
break; |
1135 |
goto out; |
} |
1136 |
} else { |
} |
1137 |
if (!ccs_io_printf(head, "NULL")) |
while (head->r.cond_index < condc) { |
1138 |
goto out; |
const u8 match = condp->equals; |
1139 |
|
const u8 left = condp->left; |
1140 |
|
const u8 right = condp->right; |
1141 |
|
if (!ccs_flush(head)) |
1142 |
|
return false; |
1143 |
|
condp++; |
1144 |
|
head->r.cond_index++; |
1145 |
|
ccs_set_space(head); |
1146 |
|
switch (left) { |
1147 |
|
case CCS_ARGV_ENTRY: |
1148 |
|
ccs_io_printf(head, |
1149 |
|
"exec.argv[%u]%s\"%s\"", |
1150 |
|
argv->index, |
1151 |
|
argv->is_not ? |
1152 |
|
"!=" : "=", |
1153 |
|
argv->value->name); |
1154 |
|
argv++; |
1155 |
|
continue; |
1156 |
|
case CCS_ENVP_ENTRY: |
1157 |
|
ccs_io_printf(head, |
1158 |
|
"exec.envp[\"%s\"]%s", |
1159 |
|
envp->name->name, |
1160 |
|
envp->is_not ? |
1161 |
|
"!=" : "="); |
1162 |
|
if (envp->value) { |
1163 |
|
ccs_set_string(head, "\""); |
1164 |
|
ccs_set_string(head, envp-> |
1165 |
|
value->name); |
1166 |
|
ccs_set_string(head, "\""); |
1167 |
|
} else { |
1168 |
|
ccs_set_string(head, "NULL"); |
1169 |
|
} |
1170 |
|
envp++; |
1171 |
|
continue; |
1172 |
|
case CCS_NUMBER_UNION: |
1173 |
|
ccs_print_number_union(head, |
1174 |
|
numbers_p++); |
1175 |
|
break; |
1176 |
|
default: |
1177 |
|
ccs_set_string(head, |
1178 |
|
ccs_condition_keyword[left]); |
1179 |
|
break; |
1180 |
|
} |
1181 |
|
ccs_set_string(head, match ? "=" : "!="); |
1182 |
|
switch (right) { |
1183 |
|
case CCS_NAME_UNION: |
1184 |
|
ccs_print_name_union(head, names_p++); |
1185 |
|
break; |
1186 |
|
case CCS_NUMBER_UNION: |
1187 |
|
ccs_print_number_union(head, |
1188 |
|
numbers_p++); |
1189 |
|
break; |
1190 |
|
default: |
1191 |
|
ccs_set_string(head, |
1192 |
|
ccs_condition_keyword[right]); |
1193 |
|
break; |
1194 |
|
} |
1195 |
} |
} |
|
envp++; |
|
|
continue; |
|
|
case CCS_NUMBER_UNION: |
|
|
if (!ccs_print_number_union(head, numbers_p++)) |
|
|
goto out; |
|
|
break; |
|
|
default: |
|
|
if (left >= CCS_MAX_CONDITION_KEYWORD) |
|
|
goto out; |
|
|
if (!ccs_io_printf(head, " %s", |
|
|
ccs_condition_keyword[left])) |
|
|
goto out; |
|
|
break; |
|
1196 |
} |
} |
1197 |
if (!ccs_io_printf(head, "%s", match ? "=" : "!=")) |
head->r.cond_step++; |
1198 |
goto out; |
/* fall through */ |
1199 |
switch (right) { |
case 2: |
1200 |
case CCS_NAME_UNION: |
if (!ccs_flush(head)) |
|
if (!ccs_print_name_union_quoted(head, names_p++)) |
|
|
goto out; |
|
|
break; |
|
|
case CCS_NUMBER_UNION: |
|
|
if (!ccs_print_number_union_nospace(head, numbers_p++)) |
|
|
goto out; |
|
|
break; |
|
|
default: |
|
|
if (right >= CCS_MAX_CONDITION_KEYWORD) |
|
|
goto out; |
|
|
if (!ccs_io_printf(head, "%s", |
|
|
ccs_condition_keyword[right])) |
|
|
goto out; |
|
1201 |
break; |
break; |
1202 |
|
head->r.cond_step++; |
1203 |
|
/* fall through */ |
1204 |
|
case 3: |
1205 |
|
if (cond->audit) |
1206 |
|
ccs_io_printf(head, " audit=%s", |
1207 |
|
ccs_yesno(cond->audit == 2)); |
1208 |
|
if (cond->transit) { |
1209 |
|
ccs_set_string(head, " auto_domain_transitition=\""); |
1210 |
|
ccs_set_string(head, cond->transit->name); |
1211 |
|
ccs_set_string(head, "\""); |
1212 |
} |
} |
1213 |
} |
ccs_set_lf(head); |
|
i = cond->post_state[3]; |
|
|
if (!i) |
|
|
goto no_condition; |
|
|
if (!ccs_io_printf(head, " ; set")) |
|
|
goto out; |
|
|
for (j = 0; j < 3; j++) { |
|
|
if (!(i & (1 << j))) |
|
|
continue; |
|
|
if (!ccs_io_printf(head, " task.state[%u]=%u", j, |
|
|
cond->post_state[j])) |
|
|
goto out; |
|
|
} |
|
|
if (i & (1 << 4)) { |
|
|
if (!ccs_io_printf(head, " audit=%s", |
|
|
ccs_yesno(cond->post_state[4]))) |
|
|
goto out; |
|
|
} |
|
|
no_condition: |
|
|
if (ccs_io_printf(head, "\n")) |
|
1214 |
return true; |
return true; |
|
out: |
|
|
return false; |
|
|
} |
|
|
|
|
|
/** |
|
|
* ccs_print_path_acl - Print a path ACL entry. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_path_acl". |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_path_acl(struct ccs_io_buffer *head, |
|
|
struct ccs_path_acl *ptr) |
|
|
{ |
|
|
int pos; |
|
|
u8 bit; |
|
|
const u16 perm = ptr->perm; |
|
|
for (bit = head->read_bit; bit < CCS_MAX_PATH_OPERATION; bit++) { |
|
|
if (!(perm & (1 << bit))) |
|
|
continue; |
|
|
if (head->read_execute_only && bit != CCS_TYPE_EXECUTE |
|
|
&& bit != CCS_TYPE_TRANSIT) |
|
|
continue; |
|
|
/* Print "read/write" instead of "read" and "write". */ |
|
|
if ((bit == CCS_TYPE_READ || bit == CCS_TYPE_WRITE) |
|
|
&& (perm & (1 << CCS_TYPE_READ_WRITE))) |
|
|
continue; |
|
|
pos = head->read_avail; |
|
|
if (!ccs_io_printf(head, "allow_%s", ccs_path2keyword(bit)) || |
|
|
!ccs_print_name_union(head, &ptr->name) || |
|
|
!ccs_print_condition(head, ptr->head.cond)) { |
|
|
head->read_bit = bit; |
|
|
head->read_avail = pos; |
|
|
return false; |
|
|
} |
|
1215 |
} |
} |
1216 |
head->read_bit = 0; |
return false; |
|
return true; |
|
1217 |
} |
} |
1218 |
|
|
1219 |
/** |
/** |
1220 |
* ccs_print_path_number3_acl - Print a path_number3 ACL entry. |
* ccs_fns - Find next set bit. |
1221 |
* |
* |
1222 |
* @head: Pointer to "struct ccs_io_buffer". |
* @perm: 8 bits value. |
1223 |
* @ptr: Pointer to "struct ccs_path_number3_acl". |
* @bit: First bit to find. |
1224 |
* |
* |
1225 |
* Returns true on success, false otherwise. |
* Returns next set bit on success, 8 otherwise. |
1226 |
*/ |
*/ |
1227 |
static bool ccs_print_path_number3_acl(struct ccs_io_buffer *head, |
static u8 ccs_fns(const u8 perm, u8 bit) |
|
struct ccs_path_number3_acl *ptr) |
|
1228 |
{ |
{ |
1229 |
int pos; |
for ( ; bit < 8; bit++) |
1230 |
u8 bit; |
if (perm & (1 << bit)) |
1231 |
const u16 perm = ptr->perm; |
break; |
1232 |
for (bit = head->read_bit; bit < CCS_MAX_PATH_NUMBER3_OPERATION; |
return bit; |
|
bit++) { |
|
|
if (!(perm & (1 << bit))) |
|
|
continue; |
|
|
pos = head->read_avail; |
|
|
if (!ccs_io_printf(head, "allow_%s", |
|
|
ccs_path_number32keyword(bit)) || |
|
|
!ccs_print_name_union(head, &ptr->name) || |
|
|
!ccs_print_number_union(head, &ptr->mode) || |
|
|
!ccs_print_number_union(head, &ptr->major) || |
|
|
!ccs_print_number_union(head, &ptr->minor) || |
|
|
!ccs_print_condition(head, ptr->head.cond)) { |
|
|
head->read_bit = bit; |
|
|
head->read_avail = pos; |
|
|
return false; |
|
|
} |
|
|
} |
|
|
head->read_bit = 0; |
|
|
return true; |
|
1233 |
} |
} |
1234 |
|
|
1235 |
/** |
static void ccs_set_group(struct ccs_io_buffer *head) |
|
* ccs_print_path2_acl - Print a path2 ACL entry. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_path2_acl". |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_path2_acl(struct ccs_io_buffer *head, |
|
|
struct ccs_path2_acl *ptr) |
|
1236 |
{ |
{ |
1237 |
int pos; |
if (head->type == CCS_EXCEPTIONPOLICY) |
1238 |
u8 bit; |
ccs_io_printf(head, "acl_group %u ", head->r.group_index); |
|
const u8 perm = ptr->perm; |
|
|
for (bit = head->read_bit; bit < CCS_MAX_PATH2_OPERATION; bit++) { |
|
|
if (!(perm & (1 << bit))) |
|
|
continue; |
|
|
pos = head->read_avail; |
|
|
if (!ccs_io_printf(head, "allow_%s", |
|
|
ccs_path22keyword(bit)) || |
|
|
!ccs_print_name_union(head, &ptr->name1) || |
|
|
!ccs_print_name_union(head, &ptr->name2) || |
|
|
!ccs_print_condition(head, ptr->head.cond)) { |
|
|
head->read_bit = bit; |
|
|
head->read_avail = pos; |
|
|
return false; |
|
|
} |
|
|
} |
|
|
head->read_bit = 0; |
|
|
return true; |
|
1239 |
} |
} |
1240 |
|
|
1241 |
/** |
/** |
1242 |
* ccs_print_path_number_acl - Print a path_number ACL entry. |
* ccs_print_entry - Print an ACL entry. |
1243 |
* |
* |
1244 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1245 |
* @ptr: Pointer to "struct ccs_path_number_acl". |
* @acl: Pointer to an ACL entry. |
1246 |
* |
* |
1247 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1248 |
*/ |
*/ |
1249 |
static bool ccs_print_path_number_acl(struct ccs_io_buffer *head, |
static bool ccs_print_entry(struct ccs_io_buffer *head, |
1250 |
struct ccs_path_number_acl *ptr) |
const struct ccs_acl_info *acl) |
1251 |
{ |
{ |
1252 |
int pos; |
const u8 acl_type = acl->type; |
1253 |
u8 bit; |
u8 bit; |
1254 |
const u8 perm = ptr->perm; |
if (head->r.print_cond_part) |
1255 |
for (bit = head->read_bit; bit < CCS_MAX_PATH_NUMBER_OPERATION; |
goto print_cond_part; |
1256 |
bit++) { |
if (acl->is_deleted) |
1257 |
if (!(perm & (1 << bit))) |
return true; |
1258 |
continue; |
next: |
1259 |
pos = head->read_avail; |
bit = head->r.bit; |
1260 |
if (!ccs_io_printf(head, "allow_%s", |
if (!ccs_flush(head)) |
|
ccs_path_number2keyword(bit)) || |
|
|
!ccs_print_name_union(head, &ptr->name) || |
|
|
!ccs_print_number_union(head, &ptr->number) || |
|
|
!ccs_print_condition(head, ptr->head.cond)) { |
|
|
head->read_bit = bit; |
|
|
head->read_avail = pos; |
|
|
return false; |
|
|
} |
|
|
} |
|
|
head->read_bit = 0; |
|
|
return true; |
|
|
} |
|
|
|
|
|
/** |
|
|
* ccs_print_env_acl - Print an evironment variable name's ACL entry. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_env_acl". |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_env_acl(struct ccs_io_buffer *head, |
|
|
struct ccs_env_acl *ptr) |
|
|
{ |
|
|
const int pos = head->read_avail; |
|
|
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_ENV "%s", ptr->env->name) || |
|
|
!ccs_print_condition(head, ptr->head.cond)) { |
|
|
head->read_avail = pos; |
|
|
return false; |
|
|
} |
|
|
return true; |
|
|
} |
|
|
|
|
|
/** |
|
|
* ccs_print_capability_acl - Print a capability ACL entry. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_capability_acl". |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_capability_acl(struct ccs_io_buffer *head, |
|
|
struct ccs_capability_acl *ptr) |
|
|
{ |
|
|
const int pos = head->read_avail; |
|
|
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_CAPABILITY "%s", |
|
|
ccs_cap2keyword(ptr->operation)) || |
|
|
!ccs_print_condition(head, ptr->head.cond)) { |
|
|
head->read_avail = pos; |
|
1261 |
return false; |
return false; |
1262 |
} |
else if (acl_type == CCS_TYPE_PATH_ACL) { |
1263 |
return true; |
struct ccs_path_acl *ptr |
1264 |
} |
= container_of(acl, typeof(*ptr), head); |
1265 |
|
const u16 perm = ptr->perm; |
1266 |
/** |
for ( ; bit < CCS_MAX_PATH_OPERATION; bit++) { |
1267 |
* ccs_print_network_acl - Print a network ACL entry. |
if (!(perm & (1 << bit))) |
1268 |
* |
continue; |
1269 |
* @head: Pointer to "struct ccs_io_buffer". |
if (head->r.print_execute_only && |
1270 |
* @ptr: Pointer to "struct ccs_ip_network_acl". |
bit != CCS_TYPE_EXECUTE |
1271 |
* |
/* && bit != CCS_TYPE_TRANSIT */) |
1272 |
* Returns true on success, false otherwise. |
continue; |
1273 |
*/ |
break; |
1274 |
static bool ccs_print_network_acl(struct ccs_io_buffer *head, |
} |
1275 |
struct ccs_ip_network_acl *ptr) |
if (bit >= CCS_MAX_PATH_OPERATION) |
1276 |
{ |
goto done; |
1277 |
int pos; |
ccs_set_group(head); |
1278 |
u8 bit; |
ccs_set_string(head, "file "); |
1279 |
const u8 perm = ptr->perm; |
ccs_set_string(head, ccs_path_keyword[bit]); |
1280 |
char buf[128]; |
ccs_print_name_union(head, &ptr->name); |
1281 |
for (bit = head->read_bit; bit < CCS_MAX_NETWORK_OPERATION; bit++) { |
} else if (acl_type == CCS_TYPE_AUTO_EXECUTE_HANDLER || |
1282 |
const char *w[2] = { "", "" }; |
acl_type == CCS_TYPE_DENIED_EXECUTE_HANDLER) { |
1283 |
if (!(perm & (1 << bit))) |
struct ccs_handler_acl *ptr |
1284 |
continue; |
= container_of(acl, typeof(*ptr), head); |
1285 |
pos = head->read_avail; |
ccs_set_group(head); |
1286 |
|
ccs_set_string(head, "task "); |
1287 |
|
ccs_set_string(head, acl_type == CCS_TYPE_AUTO_EXECUTE_HANDLER |
1288 |
|
? "auto_execute_handler " : |
1289 |
|
"denied_execute_handler "); |
1290 |
|
ccs_set_string(head, ptr->handler->name); |
1291 |
|
} else if (acl_type == CCS_TYPE_AUTO_TASK_ACL || |
1292 |
|
acl_type == CCS_TYPE_MANUAL_TASK_ACL) { |
1293 |
|
struct ccs_task_acl *ptr = |
1294 |
|
container_of(acl, typeof(*ptr), head); |
1295 |
|
ccs_set_group(head); |
1296 |
|
ccs_set_string(head, "task "); |
1297 |
|
ccs_set_string(head, acl_type == CCS_TYPE_AUTO_TASK_ACL ? |
1298 |
|
"auto_domain_transition " : |
1299 |
|
"manual_domain_transition "); |
1300 |
|
ccs_set_string(head, ptr->domainname->name); |
1301 |
|
} else if (head->r.print_execute_only) { |
1302 |
|
return true; |
1303 |
|
} else if (acl_type == CCS_TYPE_MKDEV_ACL) { |
1304 |
|
struct ccs_mkdev_acl *ptr = |
1305 |
|
container_of(acl, typeof(*ptr), head); |
1306 |
|
bit = ccs_fns(ptr->perm, bit); |
1307 |
|
if (bit >= CCS_MAX_MKDEV_OPERATION) |
1308 |
|
goto done; |
1309 |
|
ccs_set_group(head); |
1310 |
|
ccs_set_string(head, "file "); |
1311 |
|
ccs_set_string(head, ccs_mkdev_keyword[bit]); |
1312 |
|
ccs_print_name_union(head, &ptr->name); |
1313 |
|
ccs_print_number_union(head, &ptr->mode); |
1314 |
|
ccs_print_number_union(head, &ptr->major); |
1315 |
|
ccs_print_number_union(head, &ptr->minor); |
1316 |
|
} else if (acl_type == CCS_TYPE_PATH2_ACL) { |
1317 |
|
struct ccs_path2_acl *ptr = |
1318 |
|
container_of(acl, typeof(*ptr), head); |
1319 |
|
bit = ccs_fns(ptr->perm, bit); |
1320 |
|
if (bit >= CCS_MAX_PATH2_OPERATION) |
1321 |
|
goto done; |
1322 |
|
ccs_set_group(head); |
1323 |
|
ccs_set_string(head, "file "); |
1324 |
|
ccs_set_string(head, ccs_path2_keyword[bit]); |
1325 |
|
ccs_print_name_union(head, &ptr->name1); |
1326 |
|
ccs_print_name_union(head, &ptr->name2); |
1327 |
|
} else if (acl_type == CCS_TYPE_PATH_NUMBER_ACL) { |
1328 |
|
struct ccs_path_number_acl *ptr = |
1329 |
|
container_of(acl, typeof(*ptr), head); |
1330 |
|
bit = ccs_fns(ptr->perm, bit); |
1331 |
|
if (bit >= CCS_MAX_PATH_NUMBER_OPERATION) |
1332 |
|
goto done; |
1333 |
|
ccs_set_group(head); |
1334 |
|
ccs_set_string(head, "file "); |
1335 |
|
ccs_set_string(head, ccs_path_number_keyword[bit]); |
1336 |
|
ccs_print_name_union(head, &ptr->name); |
1337 |
|
ccs_print_number_union(head, &ptr->number); |
1338 |
|
} else if (acl_type == CCS_TYPE_ENV_ACL) { |
1339 |
|
struct ccs_env_acl *ptr = |
1340 |
|
container_of(acl, typeof(*ptr), head); |
1341 |
|
ccs_set_group(head); |
1342 |
|
ccs_set_string(head, "misc env "); |
1343 |
|
ccs_set_string(head, ptr->env->name); |
1344 |
|
} else if (acl_type == CCS_TYPE_CAPABILITY_ACL) { |
1345 |
|
struct ccs_capability_acl *ptr = |
1346 |
|
container_of(acl, typeof(*ptr), head); |
1347 |
|
ccs_set_group(head); |
1348 |
|
ccs_set_string(head, "capability "); |
1349 |
|
ccs_set_string(head, ccs_cap2keyword(ptr->operation)); |
1350 |
|
} else if (acl_type == CCS_TYPE_INET_ACL) { |
1351 |
|
struct ccs_inet_acl *ptr = |
1352 |
|
container_of(acl, typeof(*ptr), head); |
1353 |
|
bit = ccs_fns(ptr->perm, bit); |
1354 |
|
if (bit >= CCS_MAX_NETWORK_OPERATION) |
1355 |
|
goto done; |
1356 |
|
ccs_set_group(head); |
1357 |
|
ccs_set_string(head, "network inet "); |
1358 |
|
ccs_set_string(head, ccs_proto_keyword[ptr->protocol]); |
1359 |
|
ccs_set_space(head); |
1360 |
|
ccs_set_string(head, ccs_socket_keyword[bit]); |
1361 |
|
ccs_set_space(head); |
1362 |
switch (ptr->address_type) { |
switch (ptr->address_type) { |
1363 |
|
char buf[128]; |
1364 |
case CCS_IP_ADDRESS_TYPE_ADDRESS_GROUP: |
case CCS_IP_ADDRESS_TYPE_ADDRESS_GROUP: |
1365 |
w[0] = "@"; |
ccs_set_string(head, "@"); |
1366 |
w[1] = ptr->address.group->group_name->name; |
ccs_set_string(head, |
1367 |
|
ptr->address.group->group_name->name); |
1368 |
break; |
break; |
1369 |
case CCS_IP_ADDRESS_TYPE_IPv4: |
case CCS_IP_ADDRESS_TYPE_IPv4: |
1370 |
ccs_print_ipv4(buf, sizeof(buf), ptr->address.ipv4.min, |
ccs_print_ipv4(buf, sizeof(buf), ptr->address.ipv4.min, |
1371 |
ptr->address.ipv4.max); |
ptr->address.ipv4.max); |
1372 |
w[0] = buf; |
ccs_io_printf(head, "%s", buf); |
1373 |
break; |
break; |
1374 |
case CCS_IP_ADDRESS_TYPE_IPv6: |
case CCS_IP_ADDRESS_TYPE_IPv6: |
1375 |
ccs_print_ipv6(buf, sizeof(buf), ptr->address.ipv6.min, |
ccs_print_ipv6(buf, sizeof(buf), ptr->address.ipv6.min, |
1376 |
ptr->address.ipv6.max); |
ptr->address.ipv6.max); |
1377 |
w[0] = buf; |
ccs_io_printf(head, "%s", buf); |
1378 |
break; |
break; |
1379 |
} |
} |
1380 |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_NETWORK "%s %s%s", |
ccs_print_number_union(head, &ptr->port); |
1381 |
ccs_net2keyword(bit), w[0], w[1]) || |
} else if (acl_type == CCS_TYPE_UNIX_ACL) { |
1382 |
!ccs_print_number_union(head, &ptr->port) || |
struct ccs_unix_acl *ptr = |
1383 |
!ccs_print_condition(head, ptr->head.cond)) |
container_of(acl, typeof(*ptr), head); |
1384 |
goto out; |
bit = ccs_fns(ptr->perm, bit); |
1385 |
} |
if (bit >= CCS_MAX_NETWORK_OPERATION) |
1386 |
head->read_bit = 0; |
goto done; |
1387 |
return true; |
ccs_set_group(head); |
1388 |
out: |
ccs_set_string(head, "network unix "); |
1389 |
head->read_bit = bit; |
ccs_set_string(head, ccs_proto_keyword[ptr->protocol]); |
1390 |
head->read_avail = pos; |
ccs_set_space(head); |
1391 |
return false; |
ccs_set_string(head, ccs_socket_keyword[bit]); |
1392 |
} |
ccs_print_name_union(head, &ptr->name); |
1393 |
|
} else if (acl_type == CCS_TYPE_SIGNAL_ACL) { |
1394 |
/** |
struct ccs_signal_acl *ptr = |
1395 |
* ccs_print_signal_acl - Print a signal ACL entry. |
container_of(acl, typeof(*ptr), head); |
1396 |
* |
ccs_set_group(head); |
1397 |
* @head: Pointer to "struct ccs_io_buffer". |
ccs_set_string(head, "ipc signal "); |
1398 |
* @ptr: Pointer to "struct signale_acl". |
ccs_io_printf(head, "%u ", ptr->sig); |
1399 |
* |
ccs_set_string(head, ptr->domainname->name); |
1400 |
* Returns true on success, false otherwise. |
} else if (acl_type == CCS_TYPE_MOUNT_ACL) { |
1401 |
*/ |
struct ccs_mount_acl *ptr = |
1402 |
static bool ccs_print_signal_acl(struct ccs_io_buffer *head, |
container_of(acl, typeof(*ptr), head); |
1403 |
struct ccs_signal_acl *ptr) |
ccs_set_group(head); |
1404 |
{ |
ccs_io_printf(head, "file mount"); |
1405 |
const int pos = head->read_avail; |
ccs_print_name_union(head, &ptr->dev_name); |
1406 |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_SIGNAL "%u %s", |
ccs_print_name_union(head, &ptr->dir_name); |
1407 |
ptr->sig, ptr->domainname->name) || |
ccs_print_name_union(head, &ptr->fs_type); |
1408 |
!ccs_print_condition(head, ptr->head.cond)) { |
ccs_print_number_union(head, &ptr->flags); |
1409 |
head->read_avail = pos; |
} |
1410 |
return false; |
head->r.bit = bit + 1; |
1411 |
} |
if (acl->cond) { |
1412 |
return true; |
head->r.print_cond_part = true; |
1413 |
} |
head->r.cond_step = 0; |
1414 |
|
if (!ccs_flush(head)) |
1415 |
/** |
return false; |
1416 |
* ccs_print_execute_handler - Print an execute handler ACL entry. |
print_cond_part: |
1417 |
* |
if (!ccs_print_condition(head, acl->cond)) |
1418 |
* @head: Pointer to "struct ccs_io_buffer". |
return false; |
1419 |
* @keyword: Name of the keyword. |
head->r.print_cond_part = false; |
1420 |
* @ptr: Pointer to "struct ccs_execute_handler". |
} else { |
1421 |
* |
ccs_set_lf(head); |
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_execute_handler(struct ccs_io_buffer *head, |
|
|
const char *keyword, |
|
|
struct ccs_execute_handler *ptr) |
|
|
{ |
|
|
const int pos = head->read_avail; |
|
|
if (!ccs_io_printf(head, "%s %s", keyword, ptr->handler->name) || |
|
|
!ccs_print_condition(head, ptr->head.cond)) { |
|
|
head->read_avail = pos; |
|
|
return false; |
|
1422 |
} |
} |
1423 |
return true; |
switch (acl_type) { |
1424 |
} |
case CCS_TYPE_PATH_ACL: |
1425 |
|
case CCS_TYPE_MKDEV_ACL: |
1426 |
/** |
case CCS_TYPE_PATH2_ACL: |
1427 |
* ccs_print_mount_acl - Print a mount ACL entry. |
case CCS_TYPE_PATH_NUMBER_ACL: |
1428 |
* |
case CCS_TYPE_INET_ACL: |
1429 |
* @head: Pointer to "struct ccs_io_buffer". |
case CCS_TYPE_UNIX_ACL: |
1430 |
* @ptr: Pointer to "struct ccs_mount_acl". |
goto next; |
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_mount_acl(struct ccs_io_buffer *head, |
|
|
struct ccs_mount_acl *ptr) |
|
|
{ |
|
|
const int pos = head->read_avail; |
|
|
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_MOUNT) || |
|
|
!ccs_print_name_union(head, &ptr->dev_name) || |
|
|
!ccs_print_name_union(head, &ptr->dir_name) || |
|
|
!ccs_print_name_union(head, &ptr->fs_type) || |
|
|
!ccs_print_number_union(head, &ptr->flags) || |
|
|
!ccs_print_condition(head, ptr->head.cond)) { |
|
|
head->read_avail = pos; |
|
|
return false; |
|
1431 |
} |
} |
1432 |
|
done: |
1433 |
|
head->r.bit = 0; |
1434 |
return true; |
return true; |
1435 |
} |
} |
1436 |
|
|
1437 |
/** |
/** |
|
* ccs_print_entry - Print an ACL entry. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to an ACL entry. |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_entry(struct ccs_io_buffer *head, |
|
|
struct ccs_acl_info *ptr) |
|
|
{ |
|
|
const u8 acl_type = ptr->type; |
|
|
if (ptr->is_deleted) |
|
|
return true; |
|
|
if (acl_type == CCS_TYPE_PATH_ACL) { |
|
|
struct ccs_path_acl *acl |
|
|
= container_of(ptr, typeof(*acl), head); |
|
|
return ccs_print_path_acl(head, acl); |
|
|
} |
|
|
if (acl_type == CCS_TYPE_EXECUTE_HANDLER || |
|
|
acl_type == CCS_TYPE_DENIED_EXECUTE_HANDLER) { |
|
|
struct ccs_execute_handler *acl |
|
|
= container_of(ptr, typeof(*acl), head); |
|
|
const char *keyword = acl_type == CCS_TYPE_EXECUTE_HANDLER ? |
|
|
CCS_KEYWORD_EXECUTE_HANDLER : |
|
|
CCS_KEYWORD_DENIED_EXECUTE_HANDLER; |
|
|
return ccs_print_execute_handler(head, keyword, acl); |
|
|
} |
|
|
if (head->read_execute_only) |
|
|
return true; |
|
|
if (acl_type == CCS_TYPE_PATH_NUMBER3_ACL) { |
|
|
struct ccs_path_number3_acl *acl |
|
|
= container_of(ptr, typeof(*acl), head); |
|
|
return ccs_print_path_number3_acl(head, acl); |
|
|
} |
|
|
if (acl_type == CCS_TYPE_PATH2_ACL) { |
|
|
struct ccs_path2_acl *acl |
|
|
= container_of(ptr, typeof(*acl), head); |
|
|
return ccs_print_path2_acl(head, acl); |
|
|
} |
|
|
if (acl_type == CCS_TYPE_PATH_NUMBER_ACL) { |
|
|
struct ccs_path_number_acl *acl |
|
|
= container_of(ptr, typeof(*acl), head); |
|
|
return ccs_print_path_number_acl(head, acl); |
|
|
} |
|
|
if (acl_type == CCS_TYPE_ENV_ACL) { |
|
|
struct ccs_env_acl *acl |
|
|
= container_of(ptr, typeof(*acl), head); |
|
|
return ccs_print_env_acl(head, acl); |
|
|
} |
|
|
if (acl_type == CCS_TYPE_CAPABILITY_ACL) { |
|
|
struct ccs_capability_acl *acl |
|
|
= container_of(ptr, typeof(*acl), head); |
|
|
return ccs_print_capability_acl(head, acl); |
|
|
} |
|
|
if (acl_type == CCS_TYPE_IP_NETWORK_ACL) { |
|
|
struct ccs_ip_network_acl *acl |
|
|
= container_of(ptr, typeof(*acl), head); |
|
|
return ccs_print_network_acl(head, acl); |
|
|
} |
|
|
if (acl_type == CCS_TYPE_SIGNAL_ACL) { |
|
|
struct ccs_signal_acl *acl |
|
|
= container_of(ptr, typeof(*acl), head); |
|
|
return ccs_print_signal_acl(head, acl); |
|
|
} |
|
|
if (acl_type == CCS_TYPE_MOUNT_ACL) { |
|
|
struct ccs_mount_acl *acl |
|
|
= container_of(ptr, typeof(*acl), head); |
|
|
return ccs_print_mount_acl(head, acl); |
|
|
} |
|
|
BUG(); /* This must not happen. */ |
|
|
return false; |
|
|
} |
|
|
|
|
|
/** |
|
1438 |
* ccs_read_domain2 - Read domain policy. |
* ccs_read_domain2 - Read domain policy. |
1439 |
* |
* |
1440 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1441 |
* @domain: Pointer to "struct ccs_domain_info". |
* @domain: Pointer to "struct ccs_domain_info". |
1442 |
|
* @index: Index number. |
1443 |
* |
* |
1444 |
* Caller holds ccs_read_lock(). |
* Caller holds ccs_read_lock(). |
1445 |
* |
* |
1446 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1447 |
*/ |
*/ |
1448 |
static bool ccs_read_domain2(struct ccs_io_buffer *head, |
static bool ccs_read_domain2(struct ccs_io_buffer *head, |
1449 |
struct ccs_domain_info *domain) |
struct ccs_domain_info *domain, |
1450 |
|
const u8 index) |
1451 |
{ |
{ |
1452 |
struct list_head *pos; |
list_for_each_cookie(head->r.acl, &domain->acl_info_list[index]) { |
1453 |
/* Print ACL entries in the domain. */ |
struct ccs_acl_info *ptr = |
1454 |
list_for_each_cookie(pos, head->read_var2, &domain->acl_info_list) { |
list_entry(head->r.acl, typeof(*ptr), list); |
|
struct ccs_acl_info *ptr |
|
|
= list_entry(pos, struct ccs_acl_info, list); |
|
1455 |
if (!ccs_print_entry(head, ptr)) |
if (!ccs_print_entry(head, ptr)) |
1456 |
return false; |
return false; |
1457 |
} |
} |
1458 |
|
head->r.acl = NULL; |
1459 |
return true; |
return true; |
1460 |
} |
} |
1461 |
|
|
1468 |
*/ |
*/ |
1469 |
static void ccs_read_domain(struct ccs_io_buffer *head) |
static void ccs_read_domain(struct ccs_io_buffer *head) |
1470 |
{ |
{ |
1471 |
struct list_head *pos; |
if (head->r.eof) |
|
if (head->read_eof) |
|
1472 |
return; |
return; |
1473 |
list_for_each_cookie(pos, head->read_var1, &ccs_domain_list) { |
list_for_each_cookie(head->r.domain, &ccs_domain_list) { |
1474 |
struct ccs_domain_info *domain = |
struct ccs_domain_info *domain = |
1475 |
list_entry(pos, struct ccs_domain_info, list); |
list_entry(head->r.domain, typeof(*domain), list); |
1476 |
switch (head->read_step) { |
switch (head->r.step) { |
1477 |
u8 i; |
u8 i; |
|
const char *w[CCS_MAX_DOMAIN_INFO_FLAGS]; |
|
1478 |
case 0: |
case 0: |
1479 |
if (domain->is_deleted && !head->read_single_domain) |
if (domain->is_deleted && |
1480 |
|
!head->r.print_this_domain_only) |
1481 |
continue; |
continue; |
1482 |
/* Print domainname and flags. */ |
/* Print domainname and flags. */ |
1483 |
|
ccs_set_string(head, domain->domainname->name); |
1484 |
|
ccs_set_lf(head); |
1485 |
|
ccs_io_printf(head, CCS_KEYWORD_USE_PROFILE "%u\n", |
1486 |
|
domain->profile); |
1487 |
|
ccs_io_printf(head, CCS_KEYWORD_USE_GROUP "%u\n", |
1488 |
|
domain->group); |
1489 |
for (i = 0; i < CCS_MAX_DOMAIN_INFO_FLAGS; i++) |
for (i = 0; i < CCS_MAX_DOMAIN_INFO_FLAGS; i++) |
1490 |
w[i] = domain->flags[i] ? ccs_dif[i] : ""; |
if (domain->flags[i]) |
1491 |
if (!ccs_io_printf(head, "%s\n" CCS_KEYWORD_USE_PROFILE |
ccs_set_string(head, ccs_dif[i]); |
1492 |
"%u\n%s%s%s%s%s\n", |
head->r.step++; |
1493 |
domain->domainname->name, |
ccs_set_lf(head); |
|
domain->profile, |
|
|
w[CCS_DIF_QUOTA_WARNED], |
|
|
w[CCS_DIF_IGNORE_GLOBAL], |
|
|
w[CCS_DIF_IGNORE_GLOBAL_ALLOW_READ], |
|
|
w[CCS_DIF_IGNORE_GLOBAL_ALLOW_ENV], |
|
|
w[CCS_DIF_TRANSITION_FAILED])) |
|
|
return; |
|
|
head->read_step++; |
|
1494 |
/* fall through */ |
/* fall through */ |
1495 |
case 1: |
case 1: |
1496 |
if (!ccs_read_domain2(head, domain)) |
if (!ccs_read_domain2(head, domain, 0)) |
1497 |
return; |
return; |
1498 |
head->read_step++; |
head->r.step++; |
1499 |
/* fall through */ |
/* fall through */ |
1500 |
case 2: |
case 2: |
1501 |
if (!ccs_io_printf(head, "\n")) |
if (!ccs_read_domain2(head, domain, 1)) |
1502 |
|
return; |
1503 |
|
head->r.step++; |
1504 |
|
if (!ccs_set_lf(head)) |
1505 |
return; |
return; |
1506 |
head->read_step = 0; |
/* fall through */ |
1507 |
if (head->read_single_domain) |
case 3: |
1508 |
goto out; |
head->r.step = 0; |
1509 |
|
if (head->r.print_this_domain_only) |
1510 |
|
goto done; |
1511 |
} |
} |
1512 |
} |
} |
1513 |
out: |
done: |
1514 |
head->read_eof = true; |
head->r.eof = true; |
1515 |
} |
} |
1516 |
|
|
1517 |
/** |
/** |
1562 |
*/ |
*/ |
1563 |
static void ccs_read_domain_profile(struct ccs_io_buffer *head) |
static void ccs_read_domain_profile(struct ccs_io_buffer *head) |
1564 |
{ |
{ |
1565 |
struct list_head *pos; |
if (head->r.eof) |
|
if (head->read_eof) |
|
1566 |
return; |
return; |
1567 |
list_for_each_cookie(pos, head->read_var1, &ccs_domain_list) { |
list_for_each_cookie(head->r.domain, &ccs_domain_list) { |
1568 |
struct ccs_domain_info *domain; |
struct ccs_domain_info *domain = |
1569 |
domain = list_entry(pos, struct ccs_domain_info, list); |
list_entry(head->r.domain, typeof(*domain), list); |
1570 |
if (domain->is_deleted) |
if (domain->is_deleted) |
1571 |
continue; |
continue; |
1572 |
if (!ccs_io_printf(head, "%u %s\n", domain->profile, |
if (!ccs_flush(head)) |
|
domain->domainname->name)) |
|
1573 |
return; |
return; |
1574 |
|
ccs_io_printf(head, "%u ", domain->profile); |
1575 |
|
ccs_set_string(head, domain->domainname->name); |
1576 |
|
ccs_set_lf(head); |
1577 |
} |
} |
1578 |
head->read_eof = true; |
head->r.eof = true; |
1579 |
} |
} |
1580 |
|
|
1581 |
/** |
/** |
1587 |
*/ |
*/ |
1588 |
static int ccs_write_pid(struct ccs_io_buffer *head) |
static int ccs_write_pid(struct ccs_io_buffer *head) |
1589 |
{ |
{ |
1590 |
head->read_eof = false; |
head->r.eof = false; |
1591 |
return 0; |
return 0; |
1592 |
} |
} |
1593 |
|
|
1613 |
u32 ccs_flags = 0; |
u32 ccs_flags = 0; |
1614 |
/* Accessing write_buf is safe because head->io_sem is held. */ |
/* Accessing write_buf is safe because head->io_sem is held. */ |
1615 |
if (!buf) { |
if (!buf) { |
1616 |
head->read_eof = true; |
head->r.eof = true; |
1617 |
return; /* Do nothing if open(O_RDONLY). */ |
return; /* Do nothing if open(O_RDONLY). */ |
1618 |
} |
} |
1619 |
if (head->read_avail || head->read_eof) |
if (head->r.w_pos || head->r.eof) |
1620 |
return; |
return; |
1621 |
head->read_eof = true; |
head->r.eof = true; |
1622 |
if (ccs_str_starts(&buf, "info ")) |
if (ccs_str_starts(&buf, "info ")) |
1623 |
task_info = true; |
task_info = true; |
1624 |
if (ccs_str_starts(&buf, "global-pid ")) |
if (ccs_str_starts(&buf, "global-pid ")) |
1640 |
ccs_tasklist_unlock(); |
ccs_tasklist_unlock(); |
1641 |
if (!domain) |
if (!domain) |
1642 |
return; |
return; |
1643 |
if (!task_info) |
if (!task_info) { |
1644 |
ccs_io_printf(head, "%u %u %s", pid, domain->profile, |
ccs_io_printf(head, "%u %u ", pid, domain->profile); |
1645 |
domain->domainname->name); |
ccs_set_string(head, domain->domainname->name); |
1646 |
else |
} else { |
1647 |
ccs_io_printf(head, "%u manager=%s execute_handler=%s " |
ccs_io_printf(head, "%u manager=%s execute_handler=%s ", pid, |
|
"state[0]=%u state[1]=%u state[2]=%u", pid, |
|
1648 |
ccs_yesno(ccs_flags & |
ccs_yesno(ccs_flags & |
1649 |
CCS_TASK_IS_MANAGER), |
CCS_TASK_IS_MANAGER), |
1650 |
ccs_yesno(ccs_flags & |
ccs_yesno(ccs_flags & |
1651 |
CCS_TASK_IS_EXECUTE_HANDLER), |
CCS_TASK_IS_EXECUTE_HANDLER)); |
1652 |
(u8) (ccs_flags >> 24), |
} |
|
(u8) (ccs_flags >> 16), |
|
|
(u8) (ccs_flags >> 8)); |
|
1653 |
} |
} |
1654 |
|
|
1655 |
|
static const char *ccs_transition_type[CCS_MAX_TRANSITION_TYPE] = { |
1656 |
|
[CCS_TRANSITION_CONTROL_NO_INITIALIZE] |
1657 |
|
= CCS_KEYWORD_NO_INITIALIZE_DOMAIN, |
1658 |
|
[CCS_TRANSITION_CONTROL_INITIALIZE] = CCS_KEYWORD_INITIALIZE_DOMAIN, |
1659 |
|
[CCS_TRANSITION_CONTROL_NO_KEEP] = CCS_KEYWORD_NO_KEEP_DOMAIN, |
1660 |
|
[CCS_TRANSITION_CONTROL_KEEP] = CCS_KEYWORD_KEEP_DOMAIN |
1661 |
|
}; |
1662 |
|
|
1663 |
|
static const char *ccs_group_name[CCS_MAX_GROUP] = { |
1664 |
|
[CCS_PATH_GROUP] = CCS_KEYWORD_PATH_GROUP, |
1665 |
|
[CCS_NUMBER_GROUP] = CCS_KEYWORD_NUMBER_GROUP, |
1666 |
|
[CCS_ADDRESS_GROUP] = CCS_KEYWORD_ADDRESS_GROUP |
1667 |
|
}; |
1668 |
|
|
1669 |
/** |
/** |
1670 |
* ccs_write_exception - Write exception policy. |
* ccs_write_exception - Write exception policy. |
1671 |
* |
* |
1680 |
u8 i; |
u8 i; |
1681 |
static const struct { |
static const struct { |
1682 |
const char *keyword; |
const char *keyword; |
1683 |
int (*write) (char *, const bool, const u8); |
int (*write) (char *, const bool); |
1684 |
} ccs_callback[8] = { |
} ccs_callback[3] = { |
|
{ CCS_KEYWORD_NO_KEEP_DOMAIN, ccs_write_domain_keeper }, |
|
|
{ CCS_KEYWORD_NO_INITIALIZE_DOMAIN, |
|
|
ccs_write_domain_initializer }, |
|
|
{ CCS_KEYWORD_KEEP_DOMAIN, ccs_write_domain_keeper }, |
|
|
{ CCS_KEYWORD_INITIALIZE_DOMAIN, |
|
|
ccs_write_domain_initializer }, |
|
1685 |
{ CCS_KEYWORD_AGGREGATOR, ccs_write_aggregator }, |
{ CCS_KEYWORD_AGGREGATOR, ccs_write_aggregator }, |
1686 |
{ CCS_KEYWORD_FILE_PATTERN, ccs_write_pattern }, |
{ CCS_KEYWORD_FILE_PATTERN, ccs_write_pattern }, |
|
{ CCS_KEYWORD_DENY_REWRITE, ccs_write_no_rewrite }, |
|
1687 |
{ CCS_KEYWORD_DENY_AUTOBIND, ccs_write_reserved_port } |
{ CCS_KEYWORD_DENY_AUTOBIND, ccs_write_reserved_port } |
1688 |
}; |
}; |
1689 |
static const char *ccs_name[CCS_MAX_GROUP] = { |
for (i = 0; i < 3; i++) |
|
[CCS_PATH_GROUP] = CCS_KEYWORD_PATH_GROUP, |
|
|
[CCS_NUMBER_GROUP] = CCS_KEYWORD_NUMBER_GROUP, |
|
|
[CCS_ADDRESS_GROUP] = CCS_KEYWORD_ADDRESS_GROUP |
|
|
}; |
|
|
for (i = 0; i < 8; i++) { |
|
1690 |
if (ccs_str_starts(&data, ccs_callback[i].keyword)) |
if (ccs_str_starts(&data, ccs_callback[i].keyword)) |
1691 |
return ccs_callback[i].write(data, is_delete, i < 2); |
return ccs_callback[i].write(data, is_delete); |
1692 |
} |
for (i = 0; i < CCS_MAX_TRANSITION_TYPE; i++) |
1693 |
for (i = 0; i < CCS_MAX_GROUP; i++) { |
if (ccs_str_starts(&data, ccs_transition_type[i])) |
1694 |
if (ccs_str_starts(&data, ccs_name[i])) |
return ccs_write_transition_control(data, is_delete, |
1695 |
|
i); |
1696 |
|
for (i = 0; i < CCS_MAX_GROUP; i++) |
1697 |
|
if (ccs_str_starts(&data, ccs_group_name[i])) |
1698 |
return ccs_write_group(data, is_delete, i); |
return ccs_write_group(data, is_delete, i); |
1699 |
|
if (ccs_str_starts(&data, "acl_group ")) { |
1700 |
|
unsigned int group; |
1701 |
|
if (sscanf(data, "%u", &group) == 1 && |
1702 |
|
group < CCS_MAX_ACL_GROUPS) { |
1703 |
|
data = strchr(data, ' '); |
1704 |
|
if (data) |
1705 |
|
return ccs_write_domain2(data + 1, |
1706 |
|
&ccs_acl_group[group], |
1707 |
|
is_delete); |
1708 |
|
} |
1709 |
} |
} |
1710 |
return ccs_write_domain2(data, &ccs_global_domain, is_delete); |
return -EINVAL; |
1711 |
} |
} |
1712 |
|
|
1713 |
/** |
/** |
1722 |
*/ |
*/ |
1723 |
static bool ccs_read_group(struct ccs_io_buffer *head, const int idx) |
static bool ccs_read_group(struct ccs_io_buffer *head, const int idx) |
1724 |
{ |
{ |
1725 |
struct list_head *gpos; |
list_for_each_cookie(head->r.group, &ccs_group_list[idx]) { |
|
struct list_head *mpos; |
|
|
const char *w[3] = { "", "", "" }; |
|
|
if (idx == CCS_PATH_GROUP) |
|
|
w[0] = CCS_KEYWORD_PATH_GROUP; |
|
|
else if (idx == CCS_NUMBER_GROUP) |
|
|
w[0] = CCS_KEYWORD_NUMBER_GROUP; |
|
|
else if (idx == CCS_ADDRESS_GROUP) |
|
|
w[0] = CCS_KEYWORD_ADDRESS_GROUP; |
|
|
list_for_each_cookie(gpos, head->read_var1, &ccs_group_list[idx]) { |
|
1726 |
struct ccs_group *group = |
struct ccs_group *group = |
1727 |
list_entry(gpos, struct ccs_group, head.list); |
list_entry(head->r.group, typeof(*group), head.list); |
1728 |
w[1] = group->group_name->name; |
list_for_each_cookie(head->r.acl, &group->member_list) { |
|
list_for_each_cookie(mpos, head->read_var2, |
|
|
&group->member_list) { |
|
|
char buffer[128]; |
|
1729 |
struct ccs_acl_head *ptr = |
struct ccs_acl_head *ptr = |
1730 |
list_entry(mpos, struct ccs_acl_head, list); |
list_entry(head->r.acl, typeof(*ptr), list); |
1731 |
if (ptr->is_deleted) |
if (ptr->is_deleted) |
1732 |
continue; |
continue; |
1733 |
|
if (!ccs_flush(head)) |
1734 |
|
return false; |
1735 |
|
ccs_set_string(head, ccs_group_name[idx]); |
1736 |
|
ccs_set_string(head, group->group_name->name); |
1737 |
if (idx == CCS_PATH_GROUP) { |
if (idx == CCS_PATH_GROUP) { |
1738 |
w[2] = container_of(ptr, struct ccs_path_group, |
ccs_set_space(head); |
1739 |
head)->member_name->name; |
ccs_set_string(head, container_of |
1740 |
|
(ptr, struct ccs_path_group, |
1741 |
|
head)->member_name->name); |
1742 |
} else if (idx == CCS_NUMBER_GROUP) { |
} else if (idx == CCS_NUMBER_GROUP) { |
1743 |
w[2] = buffer; |
ccs_print_number_union(head, &container_of |
1744 |
ccs_print_number(buffer, sizeof(buffer), |
(ptr, struct ccs_number_group, |
1745 |
&container_of |
head)->number); |
|
(ptr, struct ccs_number_group, |
|
|
head)->number); |
|
1746 |
} else if (idx == CCS_ADDRESS_GROUP) { |
} else if (idx == CCS_ADDRESS_GROUP) { |
1747 |
|
char buffer[128]; |
1748 |
struct ccs_address_group *member = |
struct ccs_address_group *member = |
1749 |
container_of(ptr, typeof(*member), |
container_of(ptr, typeof(*member), |
1750 |
head); |
head); |
|
w[2] = buffer; |
|
1751 |
if (member->is_ipv6) |
if (member->is_ipv6) |
1752 |
ccs_print_ipv6(buffer, sizeof(buffer), |
ccs_print_ipv6(buffer, sizeof(buffer), |
1753 |
member->min.ipv6, |
member->min.ipv6, |
1756 |
ccs_print_ipv4(buffer, sizeof(buffer), |
ccs_print_ipv4(buffer, sizeof(buffer), |
1757 |
member->min.ipv4, |
member->min.ipv4, |
1758 |
member->max.ipv4); |
member->max.ipv4); |
1759 |
|
ccs_io_printf(head, " %s", buffer); |
1760 |
} |
} |
1761 |
if (!ccs_io_printf(head, "%s%s %s\n", w[0], w[1], |
ccs_set_lf(head); |
|
w[2])) |
|
|
return false; |
|
1762 |
} |
} |
1763 |
|
head->r.acl = NULL; |
1764 |
} |
} |
1765 |
|
head->r.group = NULL; |
1766 |
return true; |
return true; |
1767 |
} |
} |
1768 |
|
|
1778 |
*/ |
*/ |
1779 |
static bool ccs_read_policy(struct ccs_io_buffer *head, const int idx) |
static bool ccs_read_policy(struct ccs_io_buffer *head, const int idx) |
1780 |
{ |
{ |
1781 |
struct list_head *pos; |
list_for_each_cookie(head->r.acl, &ccs_policy_list[idx]) { |
1782 |
list_for_each_cookie(pos, head->read_var2, &ccs_policy_list[idx]) { |
struct ccs_acl_head *acl = |
1783 |
const char *w[4] = { "", "", "", "" }; |
container_of(head->r.acl, typeof(*acl), list); |
|
char buffer[16]; |
|
|
struct ccs_acl_head *acl = container_of(pos, typeof(*acl), |
|
|
list); |
|
1784 |
if (acl->is_deleted) |
if (acl->is_deleted) |
1785 |
continue; |
continue; |
1786 |
|
if (!ccs_flush(head)) |
1787 |
|
return false; |
1788 |
switch (idx) { |
switch (idx) { |
1789 |
case CCS_ID_DOMAIN_KEEPER: |
case CCS_ID_TRANSITION_CONTROL: |
|
{ |
|
|
struct ccs_domain_keeper *ptr = |
|
|
container_of(acl, typeof(*ptr), head); |
|
|
w[0] = ptr->is_not ? |
|
|
CCS_KEYWORD_NO_KEEP_DOMAIN : |
|
|
CCS_KEYWORD_KEEP_DOMAIN; |
|
|
if (ptr->program) { |
|
|
w[1] = ptr->program->name; |
|
|
w[2] = " from "; |
|
|
} |
|
|
w[3] = ptr->domainname->name; |
|
|
} |
|
|
break; |
|
|
case CCS_ID_DOMAIN_INITIALIZER: |
|
1790 |
{ |
{ |
1791 |
struct ccs_domain_initializer *ptr = |
struct ccs_transition_control *ptr = |
1792 |
container_of(acl, typeof(*ptr), head); |
container_of(acl, typeof(*ptr), head); |
1793 |
w[0] = ptr->is_not ? |
ccs_set_string(head, |
1794 |
CCS_KEYWORD_NO_INITIALIZE_DOMAIN : |
ccs_transition_type[ptr->type]); |
1795 |
CCS_KEYWORD_INITIALIZE_DOMAIN; |
ccs_set_string(head, ptr->program ? |
1796 |
w[1] = ptr->program->name; |
ptr->program->name : "any"); |
1797 |
if (ptr->domainname) { |
ccs_set_string(head, " from "); |
1798 |
w[2] = " from "; |
ccs_set_string(head, ptr->domainname ? |
1799 |
w[3] = ptr->domainname->name; |
ptr->domainname->name : "any"); |
|
} |
|
1800 |
} |
} |
1801 |
break; |
break; |
1802 |
case CCS_ID_AGGREGATOR: |
case CCS_ID_AGGREGATOR: |
1803 |
{ |
{ |
1804 |
struct ccs_aggregator *ptr = |
struct ccs_aggregator *ptr = |
1805 |
container_of(acl, typeof(*ptr), head); |
container_of(acl, typeof(*ptr), head); |
1806 |
w[0] = CCS_KEYWORD_AGGREGATOR; |
ccs_set_string(head, CCS_KEYWORD_AGGREGATOR); |
1807 |
w[1] = ptr->original_name->name; |
ccs_set_string(head, ptr->original_name->name); |
1808 |
w[2] = " "; |
ccs_set_space(head); |
1809 |
w[3] = ptr->aggregated_name->name; |
ccs_set_string(head, |
1810 |
|
ptr->aggregated_name->name); |
1811 |
} |
} |
1812 |
break; |
break; |
1813 |
case CCS_ID_PATTERN: |
case CCS_ID_PATTERN: |
1814 |
{ |
{ |
1815 |
struct ccs_pattern *ptr = |
struct ccs_pattern *ptr = |
1816 |
container_of(acl, typeof(*ptr), head); |
container_of(acl, typeof(*ptr), head); |
1817 |
w[0] = CCS_KEYWORD_FILE_PATTERN; |
ccs_set_string(head, CCS_KEYWORD_FILE_PATTERN); |
1818 |
w[1] = ptr->pattern->name; |
ccs_set_string(head, ptr->pattern->name); |
|
} |
|
|
break; |
|
|
case CCS_ID_NO_REWRITE: |
|
|
{ |
|
|
struct ccs_no_rewrite *ptr = |
|
|
container_of(acl, typeof(*ptr), head); |
|
|
w[0] = CCS_KEYWORD_DENY_REWRITE; |
|
|
w[1] = ptr->pattern->name; |
|
1819 |
} |
} |
1820 |
break; |
break; |
1821 |
case CCS_ID_RESERVEDPORT: |
case CCS_ID_RESERVEDPORT: |
1824 |
container_of(acl, typeof(*ptr), head); |
container_of(acl, typeof(*ptr), head); |
1825 |
const u16 min_port = ptr->min_port; |
const u16 min_port = ptr->min_port; |
1826 |
const u16 max_port = ptr->max_port; |
const u16 max_port = ptr->max_port; |
1827 |
w[0] = CCS_KEYWORD_DENY_AUTOBIND; |
ccs_set_string(head, |
1828 |
snprintf(buffer, sizeof(buffer) - 1, "%u%c%u", |
CCS_KEYWORD_DENY_AUTOBIND); |
1829 |
min_port, min_port != max_port ? |
ccs_io_printf(head, "%u", min_port); |
1830 |
'-' : '\0', max_port); |
if (min_port != max_port) |
1831 |
buffer[sizeof(buffer) - 1] = '\0'; |
ccs_io_printf(head, "-%u", max_port); |
|
w[1] = buffer; |
|
1832 |
} |
} |
1833 |
break; |
break; |
1834 |
default: |
default: |
1835 |
continue; |
continue; |
1836 |
} |
} |
1837 |
if (!ccs_io_printf(head, "%s%s%s%s\n", w[0], w[1], w[2], w[3])) |
ccs_set_lf(head); |
|
return false; |
|
1838 |
} |
} |
1839 |
|
head->r.acl = NULL; |
1840 |
return true; |
return true; |
1841 |
} |
} |
1842 |
|
|
|
static void ccs_read_global_domain(struct ccs_io_buffer *head) |
|
|
{ |
|
|
if (!head->read_eof) |
|
|
head->read_eof = ccs_read_domain2(head, &ccs_global_domain); |
|
|
} |
|
|
|
|
1843 |
/** |
/** |
1844 |
* ccs_read_exception - Read exception policy. |
* ccs_read_exception - Read exception policy. |
1845 |
* |
* |
1849 |
*/ |
*/ |
1850 |
static void ccs_read_exception(struct ccs_io_buffer *head) |
static void ccs_read_exception(struct ccs_io_buffer *head) |
1851 |
{ |
{ |
1852 |
if (head->read_eof) |
if (head->r.eof) |
1853 |
return; |
return; |
1854 |
while (head->read_step < CCS_MAX_POLICY && |
while (head->r.step < CCS_MAX_POLICY && |
1855 |
ccs_read_policy(head, head->read_step)) |
ccs_read_policy(head, head->r.step)) |
1856 |
head->read_step++; |
head->r.step++; |
1857 |
if (head->read_step < CCS_MAX_POLICY) |
if (head->r.step < CCS_MAX_POLICY) |
1858 |
return; |
return; |
1859 |
while (head->read_step < CCS_MAX_POLICY + CCS_MAX_GROUP && |
while (head->r.step < CCS_MAX_POLICY + CCS_MAX_GROUP && |
1860 |
ccs_read_group(head, head->read_step - CCS_MAX_POLICY)) |
ccs_read_group(head, head->r.step - CCS_MAX_POLICY)) |
1861 |
head->read_step++; |
head->r.step++; |
1862 |
if (head->read_step < CCS_MAX_POLICY + CCS_MAX_GROUP) |
if (head->r.step < CCS_MAX_POLICY + CCS_MAX_GROUP) |
1863 |
return; |
return; |
1864 |
head->read = ccs_read_global_domain; |
while (head->r.step < CCS_MAX_POLICY + CCS_MAX_GROUP |
1865 |
} |
+ CCS_MAX_ACL_GROUPS * 2) { |
1866 |
|
head->r.group_index = (head->r.step - CCS_MAX_POLICY |
1867 |
/** |
- CCS_MAX_GROUP) / 2; |
1868 |
* ccs_get_argv0 - Get argv[0]. |
if (!ccs_read_domain2(head, |
1869 |
* |
&ccs_acl_group[head->r.group_index], |
1870 |
* @ee: Pointer to "struct ccs_execve". |
head->r.step & 1)) |
1871 |
* |
return; |
1872 |
* Returns true on success, false otherwise. |
head->r.step++; |
|
*/ |
|
|
static bool ccs_get_argv0(struct ccs_execve *ee) |
|
|
{ |
|
|
struct linux_binprm *bprm = ee->bprm; |
|
|
char *arg_ptr = ee->tmp; |
|
|
int arg_len = 0; |
|
|
unsigned long pos = bprm->p; |
|
|
int offset = pos % PAGE_SIZE; |
|
|
bool done = false; |
|
|
if (!bprm->argc) |
|
|
goto out; |
|
|
while (1) { |
|
|
if (!ccs_dump_page(bprm, pos, &ee->dump)) |
|
|
goto out; |
|
|
pos += PAGE_SIZE - offset; |
|
|
/* Read. */ |
|
|
while (offset < PAGE_SIZE) { |
|
|
const char *kaddr = ee->dump.data; |
|
|
const unsigned char c = kaddr[offset++]; |
|
|
if (c && arg_len < CCS_EXEC_TMPSIZE - 10) { |
|
|
if (c == '\\') { |
|
|
arg_ptr[arg_len++] = '\\'; |
|
|
arg_ptr[arg_len++] = '\\'; |
|
|
} else if (c > ' ' && c < 127) { |
|
|
arg_ptr[arg_len++] = c; |
|
|
} else { |
|
|
arg_ptr[arg_len++] = '\\'; |
|
|
arg_ptr[arg_len++] = (c >> 6) + '0'; |
|
|
arg_ptr[arg_len++] |
|
|
= ((c >> 3) & 7) + '0'; |
|
|
arg_ptr[arg_len++] = (c & 7) + '0'; |
|
|
} |
|
|
} else { |
|
|
arg_ptr[arg_len] = '\0'; |
|
|
done = true; |
|
|
break; |
|
|
} |
|
|
} |
|
|
offset = 0; |
|
|
if (done) |
|
|
break; |
|
1873 |
} |
} |
1874 |
return true; |
head->r.eof = true; |
|
out: |
|
|
return false; |
|
1875 |
} |
} |
1876 |
|
|
1877 |
/* Wait queue for ccs_query_list. */ |
/* Wait queue for ccs_query_list. */ |
1881 |
static DEFINE_SPINLOCK(ccs_query_list_lock); |
static DEFINE_SPINLOCK(ccs_query_list_lock); |
1882 |
|
|
1883 |
/* Structure for query. */ |
/* Structure for query. */ |
1884 |
struct ccs_query_entry { |
struct ccs_query { |
1885 |
struct list_head list; |
struct list_head list; |
1886 |
char *query; |
char *query; |
1887 |
int query_len; |
int query_len; |
1890 |
int answer; |
int answer; |
1891 |
}; |
}; |
1892 |
|
|
1893 |
/* The list for "struct ccs_query_entry". */ |
/* The list for "struct ccs_query". */ |
1894 |
static LIST_HEAD(ccs_query_list); |
static LIST_HEAD(ccs_query_list); |
1895 |
|
|
1896 |
/* Number of "struct file" referring /proc/ccs/query interface. */ |
/* Number of "struct file" referring /proc/ccs/query interface. */ |
1897 |
static atomic_t ccs_query_observers = ATOMIC_INIT(0); |
static atomic_t ccs_query_observers = ATOMIC_INIT(0); |
1898 |
|
|
1899 |
static void ccs_addprintf(char *buffer, int len, const char *fmt, ...) |
static void ccs_truncate(char *str) |
1900 |
{ |
{ |
1901 |
va_list args; |
while (* (unsigned char *) str > (unsigned char) ' ') |
1902 |
const int pos = strlen(buffer); |
str++; |
1903 |
va_start(args, fmt); |
*str = '\0'; |
|
vsnprintf(buffer + pos, len - pos - 1, fmt, args); |
|
|
va_end(args); |
|
1904 |
} |
} |
1905 |
|
|
1906 |
/** |
/** |
1907 |
* ccs_supervisor - Ask for the supervisor's decision. |
* ccs_supervisor - Ask for the supervisor's decision. |
1908 |
* |
* |
1921 |
int pos; |
int pos; |
1922 |
int len; |
int len; |
1923 |
static unsigned int ccs_serial; |
static unsigned int ccs_serial; |
1924 |
struct ccs_query_entry *ccs_query_entry = NULL; |
struct ccs_query *entry = NULL; |
1925 |
bool quota_exceeded = false; |
bool quota_exceeded = false; |
1926 |
char *header; |
char *header; |
1927 |
struct ccs_domain_info * const domain = ccs_current_domain(); |
struct ccs_domain_info * const domain = ccs_current_domain(); |
1932 |
char *buffer; |
char *buffer; |
1933 |
char *realpath = NULL; |
char *realpath = NULL; |
1934 |
char *argv0 = NULL; |
char *argv0 = NULL; |
1935 |
const char *symlink = NULL; |
char *symlink = NULL; |
1936 |
|
char *handler = NULL; |
1937 |
const struct ccs_preference *pref; |
const struct ccs_preference *pref; |
1938 |
if (!ccs_domain_quota_ok(r)) |
if (!ccs_domain_quota_ok(r)) |
1939 |
return 0; |
return 0; |
1940 |
pref = ccs_profile(r->profile)->learning; |
header = ccs_init_log(&len, r); |
1941 |
|
if (!header) |
1942 |
|
return 0; |
1943 |
|
pref = &ccs_profile(r->profile)->preference; |
1944 |
|
/* strstr() will return NULL if ordering is wrong. */ |
1945 |
if (r->param_type == CCS_TYPE_PATH_ACL && |
if (r->param_type == CCS_TYPE_PATH_ACL && |
1946 |
r->param.path.operation == CCS_TYPE_EXECUTE) { |
r->param.path.operation == CCS_TYPE_EXECUTE) { |
|
if (pref->learning_exec_realpath) { |
|
|
struct file *file = r->ee->bprm->file; |
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20) |
|
|
struct path path = { file->f_vfsmnt, |
|
|
file->f_dentry }; |
|
|
realpath = ccs_realpath_from_path(&path); |
|
|
#else |
|
|
realpath = ccs_realpath_from_path(&file-> |
|
|
f_path); |
|
|
#endif |
|
|
if (realpath) |
|
|
len += strlen(realpath); |
|
|
} |
|
1947 |
if (pref->learning_exec_argv0) { |
if (pref->learning_exec_argv0) { |
1948 |
if (ccs_get_argv0(r->ee)) { |
argv0 = strstr(header, " argv[]={ \""); |
1949 |
argv0 = r->ee->tmp; |
if (argv0) { |
1950 |
len += strlen(argv0); |
argv0 += 10; |
1951 |
|
ccs_truncate(argv0); |
1952 |
} |
} |
1953 |
} |
} |
1954 |
} |
if (pref->learning_exec_realpath) { |
1955 |
if (r->param_type == CCS_TYPE_PATH_ACL && |
realpath = strstr(header, |
1956 |
r->param.path.operation == CCS_TYPE_SYMLINK && |
" exec={ realpath=\""); |
1957 |
pref->learning_symlink_target) { |
if (realpath) { |
1958 |
symlink = r->obj->symlink_target->name; |
realpath += 8; |
1959 |
len += strlen(symlink); |
ccs_truncate(realpath); |
1960 |
} |
} |
1961 |
|
} |
1962 |
|
} else if (r->param_type == CCS_TYPE_PATH_ACL && |
1963 |
|
r->param.path.operation == CCS_TYPE_SYMLINK && |
1964 |
|
pref->learning_symlink_target) { |
1965 |
|
symlink = strstr(header, " symlink.target=\""); |
1966 |
|
if (symlink) |
1967 |
|
ccs_truncate(symlink + 1); |
1968 |
|
} |
1969 |
|
handler = strstr(header, "type=execute_handler"); |
1970 |
|
if (handler) |
1971 |
|
ccs_truncate(handler); |
1972 |
buffer = kmalloc(len, CCS_GFP_FLAGS); |
buffer = kmalloc(len, CCS_GFP_FLAGS); |
1973 |
if (buffer) { |
if (buffer) { |
|
const bool handler = (current->ccs_flags & |
|
|
CCS_TASK_IS_EXECUTE_HANDLER) |
|
|
!= 0; |
|
1974 |
va_start(args, fmt); |
va_start(args, fmt); |
1975 |
vsnprintf(buffer, len - 1, fmt, args); |
vsnprintf(buffer, len - 1, fmt, args); |
1976 |
va_end(args); |
va_end(args); |
1977 |
if (handler || realpath || argv0 || symlink) { |
if (handler || realpath || argv0 || symlink) { |
|
ccs_addprintf(buffer, len, " if"); |
|
1978 |
if (handler) |
if (handler) |
1979 |
ccs_addprintf(buffer, len, " task.type" |
ccs_addprintf(buffer, len, " task.%s", |
1980 |
"=execute_handler"); |
handler); |
1981 |
if (realpath) |
if (realpath) |
1982 |
ccs_addprintf(buffer, len, |
ccs_addprintf(buffer, len, " exec.%s", |
|
" exec.realpath=\"%s\"", |
|
1983 |
realpath); |
realpath); |
1984 |
if (argv0) |
if (argv0) |
1985 |
ccs_addprintf(buffer, len, |
ccs_addprintf(buffer, len, |
1986 |
" exec.argv[0]=\"%s\"", |
" exec.argv[0]=%s", |
1987 |
argv0); |
argv0); |
1988 |
if (symlink) |
if (symlink) |
1989 |
ccs_addprintf(buffer, len, |
ccs_addprintf(buffer, len, "%s", |
|
" symlink.target=\"%s\"", |
|
1990 |
symlink); |
symlink); |
1991 |
} |
} |
1992 |
ccs_normalize_line(buffer); |
ccs_normalize_line(buffer); |
1993 |
ccs_write_domain2(buffer, domain, false); |
ccs_write_domain2(buffer, domain, false); |
1994 |
kfree(buffer); |
kfree(buffer); |
1995 |
} |
} |
1996 |
kfree(realpath); |
kfree(header); |
1997 |
return 0; |
return 0; |
1998 |
} |
} |
1999 |
if (r->mode != CCS_CONFIG_ENFORCING) |
if (r->mode != CCS_CONFIG_ENFORCING) |
2002 |
int i; |
int i; |
2003 |
if (current->ccs_flags & CCS_DONT_SLEEP_ON_ENFORCE_ERROR) |
if (current->ccs_flags & CCS_DONT_SLEEP_ON_ENFORCE_ERROR) |
2004 |
return -EPERM; |
return -EPERM; |
2005 |
for (i = 0; i < ccs_profile(domain->profile)->enforcing-> |
for (i = 0; i < ccs_profile(domain->profile)->preference. |
2006 |
enforcing_penalty; i++) { |
enforcing_penalty; i++) { |
2007 |
set_current_state(TASK_INTERRUPTIBLE); |
set_current_state(TASK_INTERRUPTIBLE); |
2008 |
schedule_timeout(HZ / 10); |
schedule_timeout(HZ / 10); |
2012 |
header = ccs_init_log(&len, r); |
header = ccs_init_log(&len, r); |
2013 |
if (!header) |
if (!header) |
2014 |
goto out; |
goto out; |
2015 |
ccs_query_entry = kzalloc(sizeof(*ccs_query_entry), CCS_GFP_FLAGS); |
entry = kzalloc(sizeof(*entry), CCS_GFP_FLAGS); |
2016 |
if (!ccs_query_entry) |
if (!entry) |
2017 |
goto out; |
goto out; |
2018 |
len = ccs_round2(len); |
len = ccs_round2(len); |
2019 |
ccs_query_entry->query = kzalloc(len, CCS_GFP_FLAGS); |
entry->query = kzalloc(len, CCS_GFP_FLAGS); |
2020 |
if (!ccs_query_entry->query) |
if (!entry->query) |
2021 |
goto out; |
goto out; |
|
INIT_LIST_HEAD(&ccs_query_entry->list); |
|
2022 |
spin_lock(&ccs_query_list_lock); |
spin_lock(&ccs_query_list_lock); |
2023 |
if (ccs_quota_for_query && ccs_query_memory_size + len + |
if (ccs_quota_for_query && ccs_query_memory_size + len + |
2024 |
sizeof(*ccs_query_entry) >= ccs_quota_for_query) { |
sizeof(*entry) >= ccs_quota_for_query) { |
2025 |
quota_exceeded = true; |
quota_exceeded = true; |
2026 |
} else { |
} else { |
2027 |
ccs_query_memory_size += len + sizeof(*ccs_query_entry); |
ccs_query_memory_size += len + sizeof(*entry); |
2028 |
ccs_query_entry->serial = ccs_serial++; |
entry->serial = ccs_serial++; |
2029 |
} |
} |
2030 |
spin_unlock(&ccs_query_list_lock); |
spin_unlock(&ccs_query_list_lock); |
2031 |
if (quota_exceeded) |
if (quota_exceeded) |
2032 |
goto out; |
goto out; |
2033 |
snprintf(ccs_query_entry->query, len - 1, "Q%u-%hu\n%s", |
pos = snprintf(entry->query, len - 1, "Q%u-%hu\n%s", |
2034 |
ccs_query_entry->serial, r->retry, header); |
entry->serial, r->retry, header); |
2035 |
kfree(header); |
kfree(header); |
2036 |
header = NULL; |
header = NULL; |
2037 |
ccs_addprintf(ccs_query_entry->query, len, fmt, args); |
va_start(args, fmt); |
2038 |
ccs_query_entry->query_len = strlen(ccs_query_entry->query) + 1; |
vsnprintf(entry->query + pos, len - 1 - pos, fmt, args); |
2039 |
|
entry->query_len = strlen(entry->query) + 1; |
2040 |
|
va_end(args); |
2041 |
spin_lock(&ccs_query_list_lock); |
spin_lock(&ccs_query_list_lock); |
2042 |
list_add_tail(&ccs_query_entry->list, &ccs_query_list); |
list_add_tail(&entry->list, &ccs_query_list); |
2043 |
spin_unlock(&ccs_query_list_lock); |
spin_unlock(&ccs_query_list_lock); |
2044 |
/* Give 10 seconds for supervisor's opinion. */ |
/* Give 10 seconds for supervisor's opinion. */ |
2045 |
for (ccs_query_entry->timer = 0; |
for (entry->timer = 0; |
2046 |
atomic_read(&ccs_query_observers) && ccs_query_entry->timer < 100; |
atomic_read(&ccs_query_observers) && entry->timer < 100; |
2047 |
ccs_query_entry->timer++) { |
entry->timer++) { |
2048 |
wake_up(&ccs_query_wait); |
wake_up(&ccs_query_wait); |
2049 |
set_current_state(TASK_INTERRUPTIBLE); |
set_current_state(TASK_INTERRUPTIBLE); |
2050 |
schedule_timeout(HZ / 10); |
schedule_timeout(HZ / 10); |
2051 |
if (ccs_query_entry->answer) |
if (entry->answer) |
2052 |
break; |
break; |
2053 |
} |
} |
2054 |
spin_lock(&ccs_query_list_lock); |
spin_lock(&ccs_query_list_lock); |
2055 |
list_del(&ccs_query_entry->list); |
list_del(&entry->list); |
2056 |
ccs_query_memory_size -= len + sizeof(*ccs_query_entry); |
ccs_query_memory_size -= len + sizeof(*entry); |
2057 |
spin_unlock(&ccs_query_list_lock); |
spin_unlock(&ccs_query_list_lock); |
2058 |
switch (ccs_query_entry->answer) { |
switch (entry->answer) { |
2059 |
case 3: /* Asked to retry by administrator. */ |
case 3: /* Asked to retry by administrator. */ |
2060 |
error = CCS_RETRY_REQUEST; |
error = CCS_RETRY_REQUEST; |
2061 |
r->retry++; |
r->retry++; |
2072 |
break; |
break; |
2073 |
} |
} |
2074 |
out: |
out: |
2075 |
if (ccs_query_entry) |
if (entry) |
2076 |
kfree(ccs_query_entry->query); |
kfree(entry->query); |
2077 |
kfree(ccs_query_entry); |
kfree(entry); |
2078 |
kfree(header); |
kfree(header); |
2079 |
return error; |
return error; |
2080 |
} |
} |
2097 |
for (i = 0; i < 2; i++) { |
for (i = 0; i < 2; i++) { |
2098 |
spin_lock(&ccs_query_list_lock); |
spin_lock(&ccs_query_list_lock); |
2099 |
list_for_each(tmp, &ccs_query_list) { |
list_for_each(tmp, &ccs_query_list) { |
2100 |
struct ccs_query_entry *ptr = |
struct ccs_query *ptr = |
2101 |
list_entry(tmp, struct ccs_query_entry, list); |
list_entry(tmp, typeof(*ptr), list); |
2102 |
if (ptr->answer) |
if (ptr->answer) |
2103 |
continue; |
continue; |
2104 |
found = true; |
found = true; |
2125 |
int pos = 0; |
int pos = 0; |
2126 |
int len = 0; |
int len = 0; |
2127 |
char *buf; |
char *buf; |
2128 |
if (head->read_avail) |
if (head->r.w_pos) |
2129 |
return; |
return; |
2130 |
if (head->read_buf) { |
if (head->read_buf) { |
2131 |
kfree(head->read_buf); |
kfree(head->read_buf); |
2132 |
head->read_buf = NULL; |
head->read_buf = NULL; |
|
head->readbuf_size = 0; |
|
2133 |
} |
} |
2134 |
spin_lock(&ccs_query_list_lock); |
spin_lock(&ccs_query_list_lock); |
2135 |
list_for_each(tmp, &ccs_query_list) { |
list_for_each(tmp, &ccs_query_list) { |
2136 |
struct ccs_query_entry *ptr |
struct ccs_query *ptr = list_entry(tmp, typeof(*ptr), list); |
|
= list_entry(tmp, struct ccs_query_entry, list); |
|
2137 |
if (ptr->answer) |
if (ptr->answer) |
2138 |
continue; |
continue; |
2139 |
if (pos++ != head->read_step) |
if (pos++ != head->r.query_index) |
2140 |
continue; |
continue; |
2141 |
len = ptr->query_len; |
len = ptr->query_len; |
2142 |
break; |
break; |
2143 |
} |
} |
2144 |
spin_unlock(&ccs_query_list_lock); |
spin_unlock(&ccs_query_list_lock); |
2145 |
if (!len) { |
if (!len) { |
2146 |
head->read_step = 0; |
head->r.query_index = 0; |
2147 |
return; |
return; |
2148 |
} |
} |
2149 |
buf = kzalloc(len, CCS_GFP_FLAGS); |
buf = kzalloc(len, CCS_GFP_FLAGS); |
2152 |
pos = 0; |
pos = 0; |
2153 |
spin_lock(&ccs_query_list_lock); |
spin_lock(&ccs_query_list_lock); |
2154 |
list_for_each(tmp, &ccs_query_list) { |
list_for_each(tmp, &ccs_query_list) { |
2155 |
struct ccs_query_entry *ptr |
struct ccs_query *ptr = list_entry(tmp, typeof(*ptr), list); |
|
= list_entry(tmp, struct ccs_query_entry, list); |
|
2156 |
if (ptr->answer) |
if (ptr->answer) |
2157 |
continue; |
continue; |
2158 |
if (pos++ != head->read_step) |
if (pos++ != head->r.query_index) |
2159 |
continue; |
continue; |
2160 |
/* |
/* |
2161 |
* Some query can be skipped because ccs_query_list |
* Some query can be skipped because ccs_query_list |
2167 |
} |
} |
2168 |
spin_unlock(&ccs_query_list_lock); |
spin_unlock(&ccs_query_list_lock); |
2169 |
if (buf[0]) { |
if (buf[0]) { |
|
head->read_avail = len; |
|
|
head->readbuf_size = head->read_avail; |
|
2170 |
head->read_buf = buf; |
head->read_buf = buf; |
2171 |
head->read_step++; |
head->r.w[head->r.w_pos++] = buf; |
2172 |
|
head->r.query_index++; |
2173 |
} else { |
} else { |
2174 |
kfree(buf); |
kfree(buf); |
2175 |
} |
} |
2190 |
unsigned int answer; |
unsigned int answer; |
2191 |
spin_lock(&ccs_query_list_lock); |
spin_lock(&ccs_query_list_lock); |
2192 |
list_for_each(tmp, &ccs_query_list) { |
list_for_each(tmp, &ccs_query_list) { |
2193 |
struct ccs_query_entry *ptr |
struct ccs_query *ptr = list_entry(tmp, typeof(*ptr), list); |
|
= list_entry(tmp, struct ccs_query_entry, list); |
|
2194 |
ptr->timer = 0; |
ptr->timer = 0; |
2195 |
} |
} |
2196 |
spin_unlock(&ccs_query_list_lock); |
spin_unlock(&ccs_query_list_lock); |
2198 |
return -EINVAL; |
return -EINVAL; |
2199 |
spin_lock(&ccs_query_list_lock); |
spin_lock(&ccs_query_list_lock); |
2200 |
list_for_each(tmp, &ccs_query_list) { |
list_for_each(tmp, &ccs_query_list) { |
2201 |
struct ccs_query_entry *ptr |
struct ccs_query *ptr = list_entry(tmp, typeof(*ptr), list); |
|
= list_entry(tmp, struct ccs_query_entry, list); |
|
2202 |
if (ptr->serial != serial) |
if (ptr->serial != serial) |
2203 |
continue; |
continue; |
2204 |
if (!ptr->answer) |
if (!ptr->answer) |
2216 |
*/ |
*/ |
2217 |
static void ccs_read_version(struct ccs_io_buffer *head) |
static void ccs_read_version(struct ccs_io_buffer *head) |
2218 |
{ |
{ |
2219 |
if (head->read_eof) |
if (head->r.eof) |
2220 |
return; |
return; |
2221 |
ccs_io_printf(head, "1.7.2"); |
ccs_set_string(head, "1.8.0-pre"); |
2222 |
head->read_eof = true; |
head->r.eof = true; |
2223 |
} |
} |
2224 |
|
|
2225 |
/** |
/** |
2229 |
*/ |
*/ |
2230 |
static void ccs_read_self_domain(struct ccs_io_buffer *head) |
static void ccs_read_self_domain(struct ccs_io_buffer *head) |
2231 |
{ |
{ |
2232 |
if (head->read_eof) |
if (head->r.eof) |
2233 |
return; |
return; |
2234 |
/* |
/* |
2235 |
* ccs_current_domain()->domainname != NULL because every process |
* ccs_current_domain()->domainname != NULL because every process |
2236 |
* belongs to a domain and the domain's name cannot be NULL. |
* belongs to a domain and the domain's name cannot be NULL. |
2237 |
*/ |
*/ |
2238 |
ccs_io_printf(head, "%s", ccs_current_domain()->domainname->name); |
ccs_io_printf(head, "%s", ccs_current_domain()->domainname->name); |
2239 |
head->read_eof = true; |
head->r.eof = true; |
2240 |
} |
} |
2241 |
|
|
2242 |
/** |
/** |
2395 |
int ccs_read_control(struct file *file, char __user *buffer, |
int ccs_read_control(struct file *file, char __user *buffer, |
2396 |
const int buffer_len) |
const int buffer_len) |
2397 |
{ |
{ |
2398 |
int len = 0; |
int len; |
2399 |
struct ccs_io_buffer *head = file->private_data; |
struct ccs_io_buffer *head = file->private_data; |
|
char *cp; |
|
2400 |
int idx; |
int idx; |
2401 |
if (!head->read) |
if (!head->read) |
2402 |
return -ENOSYS; |
return -ENOSYS; |
2404 |
return -EFAULT; |
return -EFAULT; |
2405 |
if (mutex_lock_interruptible(&head->io_sem)) |
if (mutex_lock_interruptible(&head->io_sem)) |
2406 |
return -EINTR; |
return -EINTR; |
2407 |
|
head->read_user_buf = buffer; |
2408 |
|
head->read_user_buf_avail = buffer_len; |
2409 |
idx = ccs_read_lock(); |
idx = ccs_read_lock(); |
2410 |
while (1) { |
if (ccs_flush(head)) |
2411 |
/* Call the policy handler. */ |
/* Call the policy handler. */ |
2412 |
head->read(head); |
head->read(head); |
2413 |
/* Write to buffer. */ |
ccs_flush(head); |
|
len = head->read_avail; |
|
|
if (len || head->poll || head->read_eof) |
|
|
break; |
|
|
len = head->readbuf_size * 2; |
|
|
cp = kzalloc(len, CCS_GFP_FLAGS); |
|
|
if (!cp) { |
|
|
len = -ENOMEM; |
|
|
goto out; |
|
|
} |
|
|
kfree(head->read_buf); |
|
|
head->read_buf = cp; |
|
|
head->readbuf_size = len; |
|
|
} |
|
|
if (len > buffer_len) |
|
|
len = buffer_len; |
|
|
if (!len) |
|
|
goto out; |
|
|
/* head->read_buf changes by some functions. */ |
|
|
cp = head->read_buf; |
|
|
if (copy_to_user(buffer, cp, len)) { |
|
|
len = -EFAULT; |
|
|
goto out; |
|
|
} |
|
|
head->read_avail -= len; |
|
|
memmove(cp, cp + len, head->read_avail); |
|
|
out: |
|
2414 |
ccs_read_unlock(idx); |
ccs_read_unlock(idx); |
2415 |
|
len = head->read_user_buf - buffer; |
2416 |
mutex_unlock(&head->io_sem); |
mutex_unlock(&head->io_sem); |
2417 |
return len; |
return len; |
2418 |
} |
} |
2451 |
/* Read a line and dispatch it to the policy handler. */ |
/* Read a line and dispatch it to the policy handler. */ |
2452 |
while (avail_len > 0) { |
while (avail_len > 0) { |
2453 |
char c; |
char c; |
2454 |
if (head->write_avail >= head->writebuf_size - 1) { |
if (head->w.avail >= head->writebuf_size - 1) { |
2455 |
const int len = head->writebuf_size * 2; |
const int len = head->writebuf_size * 2; |
2456 |
char *cp = kzalloc(len, CCS_GFP_FLAGS); |
char *cp = kzalloc(len, CCS_GFP_FLAGS); |
2457 |
if (!cp) { |
if (!cp) { |
2458 |
error = -ENOMEM; |
error = -ENOMEM; |
2459 |
break; |
break; |
2460 |
} |
} |
2461 |
memmove(cp, cp0, head->write_avail); |
memmove(cp, cp0, head->w.avail); |
2462 |
kfree(cp0); |
kfree(cp0); |
2463 |
head->write_buf = cp; |
head->write_buf = cp; |
2464 |
cp0 = cp; |
cp0 = cp; |
2470 |
} |
} |
2471 |
buffer++; |
buffer++; |
2472 |
avail_len--; |
avail_len--; |
2473 |
cp0[head->write_avail++] = c; |
cp0[head->w.avail++] = c; |
2474 |
if (c != '\n') |
if (c != '\n') |
2475 |
continue; |
continue; |
2476 |
cp0[head->write_avail - 1] = '\0'; |
cp0[head->w.avail - 1] = '\0'; |
2477 |
head->write_avail = 0; |
head->w.avail = 0; |
2478 |
ccs_normalize_line(cp0); |
ccs_normalize_line(cp0); |
2479 |
head->write(head); |
head->write(head); |
2480 |
} |
} |