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tests: check decoding of setsockopt(PACKET_[ADD|DROP]_MEMBERSHIP)

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* tests/net-packet_mreq.c: New file.
* tests/.gitignore: Add net-packet_mreq.
* tests/pure_executables.list: Likewise.
* tests/gen_tests.in (net-packet_mreq): New test.
This commit is contained in:
Zhibin Li 2018-07-24 16:59:14 +08:00 committed by Dmitry V. Levin
parent c5c5b53d7f
commit 8f9a7721d5
4 changed files with 105 additions and 0 deletions
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1
tests/.gitignore vendored
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@ -251,6 +251,7 @@ munlockall
nanosleep
net-accept-connect
net-icmp_filter
net-packet_mreq
net-sockaddr
net-y-unix
net-yy-inet

1
tests/gen_tests.in
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@ -234,6 +234,7 @@ msg_name -a20 -e trace=recvmsg
munlockall -a13
nanosleep -a20
net-icmp_filter -e trace=getsockopt,setsockopt
net-packet_mreq -e trace=setsockopt
net-sockaddr -a24 -e trace=connect
net-yy-inet6 +net-yy-inet.test
netlink_audit +netlink_sock_diag.test

102
tests/net-packet_mreq.c Normal file
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@ -0,0 +1,102 @@
#include "tests.h"
#include <stdio.h>
#include <sys/socket.h>
#include <linux/if_packet.h>
static const char *errstr;
static long
packet_mreq_membership(int optname, void *optval, socklen_t len)
{
long rc = setsockopt(-1, SOL_PACKET, optname, optval, len);
errstr = sprintrc(rc);
return rc;
}
static void
test_packet_mreq(const int optname, const char *const optname_str)
{
TAIL_ALLOC_OBJECT_CONST_PTR(struct packet_mreq, pmreq);
socklen_t len = sizeof(struct packet_mreq);
/* setsockopt with optname unknown */
packet_mreq_membership(-1, NULL, 0);
printf("setsockopt(-1, SOL_PACKET, %#x /* PACKET_??? */, NULL, 0) = %s\n",
-1, errstr);
/* setsockopt with mr_type unknown */
pmreq->mr_ifindex = 0;
pmreq->mr_alen = ARRAY_SIZE(pmreq->mr_address);
packet_mreq_membership(optname, pmreq, len);
printf("setsockopt(-1, SOL_PACKET, %s, {mr_ifindex=%d,"
" mr_type=%#x /* PACKET_MR_??? */, mr_alen=%d, mr_address=",
optname_str, pmreq->mr_ifindex, pmreq->mr_type, pmreq->mr_alen);
for (unsigned int i = 0; i < ARRAY_SIZE(pmreq->mr_address); i++) {
printf("%02x", pmreq->mr_address[i]);
}
printf("}, %d) = %s\n", len, errstr);
/* setsockopt with mr_type unknown and mr_alen > sizeof(mr_address) */
pmreq->mr_alen = ARRAY_SIZE(pmreq->mr_address) + 1;
packet_mreq_membership(optname, pmreq, len);
printf("setsockopt(-1, SOL_PACKET, %s, {mr_ifindex=%d,"
" mr_type=%#x /* PACKET_MR_??? */, mr_alen=%d, mr_address=",
optname_str, pmreq->mr_ifindex, pmreq->mr_type, pmreq->mr_alen);
for (unsigned int i = 0; i < ARRAY_SIZE(pmreq->mr_address); i++) {
printf("%02x", pmreq->mr_address[i]);
}
printf("}, %d) = %s\n", len, errstr);
/* setsockopt with mr_type unknown and mr_alen < sizeof(mr_address) */
pmreq->mr_alen = ARRAY_SIZE(pmreq->mr_address) - 1;
packet_mreq_membership(optname, pmreq, len);
printf("setsockopt(-1, SOL_PACKET, %s, {mr_ifindex=%d,"
" mr_type=%#x /* PACKET_MR_??? */, mr_alen=%d, mr_address=",
optname_str, pmreq->mr_ifindex, pmreq->mr_type, pmreq->mr_alen);
for (unsigned int i = 0; i < pmreq->mr_alen; i++) {
printf("%02x", pmreq->mr_address[i]);
}
printf("}, %d) = %s\n", len, errstr);
/* setsockopt with valid mr_type */
pmreq->mr_alen = ARRAY_SIZE(pmreq->mr_address);
static const struct {
unsigned short type;
const char *const type_str;
} a[] = {
{ ARG_STR(PACKET_MR_MULTICAST) },
{ ARG_STR(PACKET_MR_PROMISC) },
{ ARG_STR(PACKET_MR_ALLMULTI) },
#ifdef PACKET_MR_UNICAST
{ ARG_STR(PACKET_MR_UNICAST) },
#endif
};
for (unsigned int i = 0; i < ARRAY_SIZE(a); i++) {
pmreq->mr_type = a[i].type;
packet_mreq_membership(optname, pmreq, len);
printf("setsockopt(-1, SOL_PACKET, %s, {mr_ifindex=%d,"
" mr_type=%s, mr_alen=%d, mr_address=",
optname_str, pmreq->mr_ifindex, a[i].type_str, pmreq->mr_alen);
for (unsigned int i = 0; i < pmreq->mr_alen; i++) {
printf("%02x", pmreq->mr_address[i]);
}
printf("}, %d) = %s\n", len, errstr);
}
/* setsockopt with optlen larger than usual */
len = len + 1;
packet_mreq_membership(optname, pmreq, len);
printf("setsockopt(-1, SOL_PACKET, %s, %p,"
" %d) = %s\n", optname_str, pmreq, len, errstr);
}
int
main(void)
{
test_packet_mreq(ARG_STR(PACKET_ADD_MEMBERSHIP));
test_packet_mreq(ARG_STR(PACKET_DROP_MEMBERSHIP));
puts("+++ exited with 0 +++");
return 0;
}

1
tests/pure_executables.list
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@ -205,6 +205,7 @@ msg_name
munlockall
nanosleep
net-icmp_filter
net-packet_mreq
net-sockaddr
net-y-unix
net-yy-inet