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Allow setsockopt(IPV6_V6ONLY) in sandbox.

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Fixes bug 20247.  We started setting V6ONLY in 0.2.3.13-alpha and
added the sandbox on 0.2.5.1-alpha.
This commit is contained in:
Nick Mathewson 2017-07-05 13:09:21 -04:00
parent bb97f680e7
commit 16d2bce893
2 changed files with 12 additions and 0 deletions
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4
changes/bug20247 Normal file
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@ -0,0 +1,4 @@
o Minor bugfixes (linux seccomp2 sandbox):
- Avoid a sandbox failure when trying to re-bind to a socket and mark
it as IPv6-only. Fixes bug 20247; bugfix on 0.2.5.1-alpha.

8
src/common/sandbox.c
View File

@ -728,6 +728,14 @@ sb_setsockopt(scmp_filter_ctx ctx, sandbox_cfg_t *filter)
return rc;
#endif
#ifdef IPV6_V6ONLY
rc = seccomp_rule_add_2(ctx, SCMP_ACT_ALLOW, SCMP_SYS(setsockopt),
SCMP_CMP(1, SCMP_CMP_EQ, IPPROTO_IPV6),
SCMP_CMP(2, SCMP_CMP_EQ, IPV6_V6ONLY));
if (rc)
return rc;
#endif
return 0;
}