Messages in this thread Patch in this message | | | From | Corey Bryant <> | Subject | [PATCH 2/3] Documentation: SECCOMP_RET_INFO return value | Date | Tue, 18 Dec 2012 16:54:31 -0500 |
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Adds documentation describing the SECCOMP_RET_INFO return value.
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com> --- Documentation/prctl/seccomp_filter.txt | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/Documentation/prctl/seccomp_filter.txt b/Documentation/prctl/seccomp_filter.txt index 1e469ef..ffddf9f 100644 --- a/Documentation/prctl/seccomp_filter.txt +++ b/Documentation/prctl/seccomp_filter.txt @@ -49,6 +49,7 @@ CONFIG_HAVE_ARCH_SECCOMP_FILTER, then filters may be added as below: PR_SET_SECCOMP: Now takes an additional argument which specifies a new filter using a BPF program. + The BPF program will be executed over struct seccomp_data reflecting the system call number, arguments, and other metadata. The BPF program must then return one of the @@ -138,6 +139,12 @@ SECCOMP_RET_TRACE: allow use of ptrace, even of other sandboxed processes, without extreme care; ptracers can use this mechanism to escape.) +SECCOMP_RET_INFO: + Results in a rate-limited informational kernel message that + includes the system call number, and the system call is + executed. The message format is: + "seccomp: syscall=x", where x is the system call number. + SECCOMP_RET_ALLOW: Results in the system call being executed. -- 1.7.11.7
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