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received feedback and fixed (partly) the socket filters

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This commit is contained in:
Cristian Toader 2013-08-15 00:23:51 +03:00
parent 372e0f91fd
commit 863dd4d4b3
1 changed files with 14 additions and 15 deletions
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29
src/common/sandbox.c
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@ -125,8 +125,6 @@ static int filter_nopar_gen[] = {
SCMP_SYS(recvmsg),
SCMP_SYS(sendto),
SCMP_SYS(send),
SCMP_SYS(setsockopt),
SCMP_SYS(socket),
SCMP_SYS(socketpair),
SCMP_SYS(recvfrom),
SCMP_SYS(unlink),
@ -310,32 +308,30 @@ sb_openat(scmp_filter_ctx ctx, sandbox_cfg_t *filter)
return 0;
}
// TODO: param not working
// TODO: add correct param
static int
sb_socket(scmp_filter_ctx ctx, sandbox_cfg_t *filter)
{
int rc = 0;
rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(socketcall), 4,
SCMP_CMP(0, SCMP_CMP_EQ, 1),
SCMP_CMP(1, SCMP_CMP_EQ, PF_INET),
SCMP_CMP(2, SCMP_CMP_EQ, SOCK_STREAM|SOCK_CLOEXEC),
SCMP_CMP(3, SCMP_CMP_EQ, IPPROTO_TCP));
rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(socket), 3,
SCMP_CMP(0, SCMP_CMP_EQ, PF_INET),
SCMP_CMP(1, SCMP_CMP_EQ, SOCK_STREAM|SOCK_CLOEXEC),
SCMP_CMP(2, SCMP_CMP_EQ, IPPROTO_TCP));
if (rc)
return rc;
rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(socketcall), 4,
SCMP_CMP(0, SCMP_CMP_EQ, 1),
SCMP_CMP(1, SCMP_CMP_EQ, PF_NETLINK),
SCMP_CMP(2, SCMP_CMP_EQ, SOCK_RAW),
SCMP_CMP(3, SCMP_CMP_EQ, 0));
rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(socket), 3,
SCMP_CMP(0, SCMP_CMP_EQ, PF_NETLINK),
SCMP_CMP(1, SCMP_CMP_EQ, SOCK_RAW),
SCMP_CMP(2, SCMP_CMP_EQ, 0));
if (rc)
return rc;
return 0;
}
// TODO: param not working
// TODO: add correct param
static int
sb_setsockopt(scmp_filter_ctx ctx, sandbox_cfg_t *filter)
{
@ -580,7 +576,10 @@ static sandbox_filter_func_t filter_func[] = {
sb_futex,
sb_mremap,
sb_poll,
sb_stat64
sb_stat64,
sb_socket,
sb_setsockopt
};
const char*