| 1931 |
I moved ccs_recv_datagram_permission() hook from skb_recv_datagram() to |
I moved ccs_recv_datagram_permission() hook from skb_recv_datagram() to |
| 1932 |
udp_recvmsg()/udpv6_recvmsg()/raw_recvmsg()/rawv6_recvmsg() with name |
udp_recvmsg()/udpv6_recvmsg()/raw_recvmsg()/rawv6_recvmsg() with name |
| 1933 |
change to ccs_recvmsg_permission(). |
change to ccs_recvmsg_permission(). |
| 1934 |
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| 1935 |
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Fix 2009/05/08 |
| 1936 |
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| 1937 |
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@ Add condition for symlink's target pathname. |
| 1938 |
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| 1939 |
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Until now, "allow_symlink" keyword allows creation of a symlink but does |
| 1940 |
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not check the symlink's target. Usually it is no problem because |
| 1941 |
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permission checks are done using dereferenced pathname. But in some |
| 1942 |
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cases, we should restrict the symlink's target. For example, |
| 1943 |
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"ln -s .htpasswd /var/www/html/readme.html" by CGI program should be |
| 1944 |
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blocked because we will allow Apache to read both |
| 1945 |
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/var/www/html/readme.html and /var/www/html/.htpasswd . |
| 1946 |
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| 1947 |
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Thus, I added new condition, "symlink.target". |
| 1948 |
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| 1949 |
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allow_symlink /var/www/html/\*.html if symlink.target="\*.html" |
| 1950 |
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| 1951 |
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allow_symlink /var/www/html/\*\-.\* if symlink.target="\*\-.\*" |
| 1952 |
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| 1953 |
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@ Don't return -EAGAIN at ccs_socket_recvmsg_permission(). |
| 1954 |
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| 1955 |
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It turned out that it is not permitted for accept() and recvmsg() to |
| 1956 |
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return -EAGAIN if poll() said connections/datagrams are ready. However, |
| 1957 |
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recvmsg() may return -EAGAIN and potentially confuse some applications |
| 1958 |
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because ccs_socket_recvmsg_permission() is returning -EAGAIN. |
| 1959 |
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| 1960 |
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Thus, I modified ccs_socket_recvmsg_permission() to return -ENOMEM |
| 1961 |
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rather than -EAGAIN. |
TOMOYO
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