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- Add 0001-arch-fix-a-number-of-32-bit-x86-failures-related-to-.patch
OBS-URL: https://build.opensuse.org/package/show/security/libseccomp?expand=0&rev=47
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0001-arch-fix-a-number-of-32-bit-x86-failures-related-to-.patch
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204
0001-arch-fix-a-number-of-32-bit-x86-failures-related-to-.patch
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From 73d83e45efbe8c31067c97155162f17ca51b7435 Mon Sep 17 00:00:00 2001
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From: Paul Moore <paul@paul-moore.com>
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Date: Fri, 8 Apr 2016 17:10:03 -0400
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Subject: [PATCH] arch: fix a number of 32-bit x86 failures related to socket
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syscalls
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It turns out there was still a few bugs with the 32-bit x86 socket
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syscalls, especially on systems with older kernel headers installed.
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This patch corrects these problems and perhaps more importantly,
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returns the resolver API functions to returning the negative pseudo
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syscall numbers in the case of 32-bit x86, this helps ensure things
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continue to work as they did before as the API does not change.
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It it important to note that libseccomp still generates filter code
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for both multiplexed and direct socket syscalls regardless.
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Signed-off-by: Paul Moore <paul@paul-moore.com>
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---
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src/arch-x86-syscalls.c | 84 ++++++++++++++++++++++++++++++++++++++
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src/arch-x86.c | 23 +++++++++--
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tests/30-sim-socket_syscalls.tests | 3 +-
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3 files changed, 105 insertions(+), 5 deletions(-)
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diff --git a/src/arch-x86-syscalls.c b/src/arch-x86-syscalls.c
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index e51dd83..58e0597 100644
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--- a/src/arch-x86-syscalls.c
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+++ b/src/arch-x86-syscalls.c
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@@ -469,6 +469,48 @@ int x86_syscall_resolve_name(const char *name)
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const struct arch_syscall_def *table = x86_syscall_table;
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/* XXX - plenty of room for future improvement here */
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+
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+ if (strcmp(name, "accept") == 0)
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+ return __PNR_accept;
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+ if (strcmp(name, "accept4") == 0)
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+ return __PNR_accept4;
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+ else if (strcmp(name, "bind") == 0)
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+ return __PNR_bind;
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+ else if (strcmp(name, "connect") == 0)
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+ return __PNR_connect;
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+ else if (strcmp(name, "getpeername") == 0)
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+ return __PNR_getpeername;
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+ else if (strcmp(name, "getsockname") == 0)
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+ return __PNR_getsockname;
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+ else if (strcmp(name, "getsockopt") == 0)
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+ return __PNR_getsockopt;
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+ else if (strcmp(name, "listen") == 0)
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+ return __PNR_listen;
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+ else if (strcmp(name, "recv") == 0)
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+ return __PNR_recv;
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+ else if (strcmp(name, "recvfrom") == 0)
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+ return __PNR_recvfrom;
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+ else if (strcmp(name, "recvmsg") == 0)
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+ return __PNR_recvmsg;
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+ else if (strcmp(name, "recvmmsg") == 0)
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+ return __PNR_recvmmsg;
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+ else if (strcmp(name, "send") == 0)
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+ return __PNR_send;
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+ else if (strcmp(name, "sendmsg") == 0)
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+ return __PNR_sendmsg;
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+ else if (strcmp(name, "sendmmsg") == 0)
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+ return __PNR_sendmmsg;
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+ else if (strcmp(name, "sendto") == 0)
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+ return __PNR_sendto;
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+ else if (strcmp(name, "setsockopt") == 0)
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+ return __PNR_setsockopt;
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+ else if (strcmp(name, "shutdown") == 0)
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+ return __PNR_shutdown;
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+ else if (strcmp(name, "socket") == 0)
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+ return __PNR_socket;
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+ else if (strcmp(name, "socketpair") == 0)
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+ return __PNR_socketpair;
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+
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for (iter = 0; table[iter].name != NULL; iter++) {
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if (strcmp(name, table[iter].name) == 0)
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return table[iter].num;
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@@ -492,6 +534,48 @@ const char *x86_syscall_resolve_num(int num)
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const struct arch_syscall_def *table = x86_syscall_table;
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/* XXX - plenty of room for future improvement here */
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+
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+ if (num == __PNR_accept)
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+ return "accept";
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+ else if (num == __PNR_accept4)
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+ return "accept4";
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+ else if (num == __PNR_bind)
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+ return "bind";
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+ else if (num == __PNR_connect)
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+ return "connect";
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+ else if (num == __PNR_getpeername)
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+ return "getpeername";
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+ else if (num == __PNR_getsockname)
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+ return "getsockname";
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+ else if (num == __PNR_getsockopt)
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+ return "getsockopt";
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+ else if (num == __PNR_listen)
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+ return "listen";
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+ else if (num == __PNR_recv)
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+ return "recv";
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+ else if (num == __PNR_recvfrom)
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+ return "recvfrom";
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+ else if (num == __PNR_recvmsg)
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+ return "recvmsg";
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+ else if (num == __PNR_recvmmsg)
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+ return "recvmmsg";
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+ else if (num == __PNR_send)
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+ return "send";
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+ else if (num == __PNR_sendmsg)
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+ return "sendmsg";
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+ else if (num == __PNR_sendmmsg)
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+ return "sendmmsg";
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+ else if (num == __PNR_sendto)
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+ return "sendto";
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+ else if (num == __PNR_setsockopt)
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+ return "setsockopt";
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+ else if (num == __PNR_shutdown)
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+ return "shutdown";
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+ else if (num == __PNR_socket)
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+ return "socket";
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+ else if (num == __PNR_socketpair)
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+ return "socketpair";
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+
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for (iter = 0; table[iter].num != __NR_SCMP_ERROR; iter++) {
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if (num == table[iter].num)
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return table[iter].name;
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diff --git a/src/arch-x86.c b/src/arch-x86.c
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index 76a1e7e..1bab53f 100644
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--- a/src/arch-x86.c
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+++ b/src/arch-x86.c
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@@ -104,6 +104,15 @@ int _x86_sock_demux(int socketcall)
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case -117:
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/* recvmsg */
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return 372;
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+ case -118:
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+ /* accept4 */
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+ return 364;
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+ case -119:
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+ /* recvmmsg */
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+ return 337;
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+ case -120:
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+ /* sendmmsg */
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+ return 345;
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}
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return __NR_SCMP_ERROR;
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@@ -120,6 +129,12 @@ int _x86_sock_demux(int socketcall)
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int _x86_sock_mux(int syscall)
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{
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switch (syscall) {
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+ case 337:
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+ /* recvmmsg */
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+ return -119;
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+ case 345:
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+ /* sendmmsg */
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+ return -120;
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case 359:
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/* socket */
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return -101;
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@@ -137,7 +152,7 @@ int _x86_sock_mux(int syscall)
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return -104;
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case 364:
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/* accept4 */
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- return __NR_SCMP_UNDEF;
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+ return -118;
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case 365:
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/* getsockopt */
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return -115;
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@@ -183,7 +198,7 @@ int x86_syscall_rewrite(int *syscall)
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{
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int sys = *syscall;
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- if (sys <= -100 && sys >= -117)
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+ if (sys <= -100 && sys >= -120)
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*syscall = __x86_NR_socketcall;
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else if (sys <= -200 && sys >= -211)
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*syscall = __x86_NR_ipc;
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@@ -215,8 +230,8 @@ int x86_rule_add(struct db_filter_col *col, struct db_filter *db, bool strict,
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int sys_a, sys_b;
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struct db_api_rule_list *rule_a, *rule_b;
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- if ((sys <= -100 && sys >= -117) || (sys >= 359 && sys <= 373)) {
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- /* (-100 to -117) : multiplexed socket syscalls
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+ if ((sys <= -100 && sys >= -120) || (sys >= 359 && sys <= 373)) {
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+ /* (-100 to -120) : multiplexed socket syscalls
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(359 to 373) : direct socket syscalls, Linux 4.4+ */
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/* strict check for the multiplexed socket syscalls */
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diff --git a/tests/30-sim-socket_syscalls.tests b/tests/30-sim-socket_syscalls.tests
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index 413629f..9d54b0e 100644
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--- a/tests/30-sim-socket_syscalls.tests
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+++ b/tests/30-sim-socket_syscalls.tests
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@@ -18,7 +18,8 @@ test type: bpf-sim
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30-sim-socket_syscalls +x86 373 0 1 2 N N N ALLOW
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30-sim-socket_syscalls +x86 accept 5 N N N N N ALLOW
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30-sim-socket_syscalls +x86 accept 0 1 2 N N N KILL
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-30-sim-socket_syscalls +x86 accept4 0 1 2 N N N ALLOW
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+30-sim-socket_syscalls +x86 accept4 18 1 2 N N N ALLOW
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+30-sim-socket_syscalls +x86 accept4 0 1 2 N N N KILL
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30-sim-socket_syscalls +x86_64 socket 0 1 2 N N N ALLOW
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30-sim-socket_syscalls +x86_64 connect 0 1 2 N N N ALLOW
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30-sim-socket_syscalls +x86_64 accept4 0 1 2 N N N ALLOW
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--
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2.6.6
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@ -1,3 +1,8 @@
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-------------------------------------------------------------------
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Sun Apr 10 22:31:15 UTC 2016 - jengelh@inai.de
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- Add 0001-arch-fix-a-number-of-32-bit-x86-failures-related-to-.patch
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-------------------------------------------------------------------
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Wed Mar 23 16:06:20 UTC 2016 - meissner@suse.com
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@ -30,6 +30,7 @@ Source: https://github.com/seccomp/libseccomp/releases/download/v%versio
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Source2: https://github.com/seccomp/libseccomp/releases/download/v%version/%name-%version.tar.gz.SHA256SUM.asc
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Source99: baselibs.conf
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Patch1: no-static.diff
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Patch2: 0001-arch-fix-a-number-of-32-bit-x86-failures-related-to-.patch
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BuildRoot: %{_tmppath}/%{name}-%{version}-build
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BuildRequires: autoconf
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BuildRequires: automake >= 1.11
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@ -97,10 +98,12 @@ This subpackage contains debug utilities for the seccomp interface.
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%prep
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%setup -q
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%patch -P 1 -p1
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%patch -P 1 -P 2 -p1
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%build
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perl -i -pe 's{AC_INIT\(\[libseccomp\], \[0\.0\.0\]\)}{AC_INIT([libseccomp], [2.3.0])}' configure.ac
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if [ ! -e configure ]; then
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perl -i -pe 's{AC_INIT\(\[libseccomp\], \[0\.0\.0\]\)}{AC_INIT([libseccomp], [2.3.0])}' configure.ac
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fi
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autoreconf -fi
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%configure --includedir="%_includedir/%name" --disable-static
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make %{?_smp_mflags};
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