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socket: add debug message for unexpected control message

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This commit is contained in:
Miroslav Lichvar 2021-01-13 13:57:37 +01:00
parent fc8783a933
commit e85fb0c25e
1 changed files with 19 additions and 19 deletions
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38
socket.c
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@ -805,8 +805,10 @@ process_header(struct msghdr *msg, int msg_length, int sock_fd, int flags,
}
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
if (0) {
}
#ifdef HAVE_IN_PKTINFO
if (match_cmsg(cmsg, IPPROTO_IP, IP_PKTINFO, sizeof (struct in_pktinfo))) {
else if (match_cmsg(cmsg, IPPROTO_IP, IP_PKTINFO, sizeof (struct in_pktinfo))) {
struct in_pktinfo ipi;
if (message->addr_type != SCK_ADDR_IP)
@ -818,7 +820,7 @@ process_header(struct msghdr *msg, int msg_length, int sock_fd, int flags,
message->if_index = ipi.ipi_ifindex;
}
#elif defined(IP_RECVDSTADDR)
if (match_cmsg(cmsg, IPPROTO_IP, IP_RECVDSTADDR, sizeof (struct in_addr))) {
else if (match_cmsg(cmsg, IPPROTO_IP, IP_RECVDSTADDR, sizeof (struct in_addr))) {
struct in_addr addr;
if (message->addr_type != SCK_ADDR_IP)
@ -829,9 +831,8 @@ process_header(struct msghdr *msg, int msg_length, int sock_fd, int flags,
message->local_addr.ip.family = IPADDR_INET4;
}
#endif
#ifdef HAVE_IN6_PKTINFO
if (match_cmsg(cmsg, IPPROTO_IPV6, IPV6_PKTINFO, sizeof (struct in6_pktinfo))) {
else if (match_cmsg(cmsg, IPPROTO_IPV6, IPV6_PKTINFO, sizeof (struct in6_pktinfo))) {
struct in6_pktinfo ipi;
if (message->addr_type != SCK_ADDR_IP)
@ -844,26 +845,23 @@ process_header(struct msghdr *msg, int msg_length, int sock_fd, int flags,
message->if_index = ipi.ipi6_ifindex;
}
#endif
#ifdef SCM_TIMESTAMP
if (match_cmsg(cmsg, SOL_SOCKET, SCM_TIMESTAMP, sizeof (struct timeval))) {
else if (match_cmsg(cmsg, SOL_SOCKET, SCM_TIMESTAMP, sizeof (struct timeval))) {
struct timeval tv;
memcpy(&tv, CMSG_DATA(cmsg), sizeof (tv));
UTI_TimevalToTimespec(&tv, &message->timestamp.kernel);
}
#endif
#ifdef SCM_TIMESTAMPNS
if (match_cmsg(cmsg, SOL_SOCKET, SCM_TIMESTAMPNS, sizeof (message->timestamp.kernel))) {
else if (match_cmsg(cmsg, SOL_SOCKET, SCM_TIMESTAMPNS, sizeof (message->timestamp.kernel))) {
memcpy(&message->timestamp.kernel, CMSG_DATA(cmsg), sizeof (message->timestamp.kernel));
}
#endif
#ifdef HAVE_LINUX_TIMESTAMPING
#ifdef HAVE_LINUX_TIMESTAMPING_OPT_PKTINFO
if (match_cmsg(cmsg, SOL_SOCKET, SCM_TIMESTAMPING_PKTINFO,
sizeof (struct scm_ts_pktinfo))) {
else if (match_cmsg(cmsg, SOL_SOCKET, SCM_TIMESTAMPING_PKTINFO,
sizeof (struct scm_ts_pktinfo))) {
struct scm_ts_pktinfo ts_pktinfo;
memcpy(&ts_pktinfo, CMSG_DATA(cmsg), sizeof (ts_pktinfo));
@ -871,18 +869,17 @@ process_header(struct msghdr *msg, int msg_length, int sock_fd, int flags,
message->timestamp.l2_length = ts_pktinfo.pkt_length;
}
#endif
if (match_cmsg(cmsg, SOL_SOCKET, SCM_TIMESTAMPING, sizeof (struct scm_timestamping))) {
else if (match_cmsg(cmsg, SOL_SOCKET, SCM_TIMESTAMPING,
sizeof (struct scm_timestamping))) {
struct scm_timestamping ts3;
memcpy(&ts3, CMSG_DATA(cmsg), sizeof (ts3));
message->timestamp.kernel = ts3.ts[0];
message->timestamp.hw = ts3.ts[2];
}
if ((match_cmsg(cmsg, SOL_IP, IP_RECVERR, 0) ||
match_cmsg(cmsg, SOL_IPV6, IPV6_RECVERR, 0)) &&
cmsg->cmsg_len >= CMSG_LEN(sizeof (struct sock_extended_err))) {
else if ((match_cmsg(cmsg, SOL_IP, IP_RECVERR, 0) ||
match_cmsg(cmsg, SOL_IPV6, IPV6_RECVERR, 0)) &&
cmsg->cmsg_len >= CMSG_LEN(sizeof (struct sock_extended_err))) {
struct sock_extended_err err;
memcpy(&err, CMSG_DATA(cmsg), sizeof (err));
@ -894,8 +891,7 @@ process_header(struct msghdr *msg, int msg_length, int sock_fd, int flags,
}
}
#endif
if (match_cmsg(cmsg, SOL_SOCKET, SCM_RIGHTS, 0)) {
else if (match_cmsg(cmsg, SOL_SOCKET, SCM_RIGHTS, 0)) {
if (!(flags & SCK_FLAG_MSG_DESCRIPTOR) || cmsg->cmsg_len != CMSG_LEN(sizeof (int))) {
int i, fd;
@ -909,6 +905,10 @@ process_header(struct msghdr *msg, int msg_length, int sock_fd, int flags,
memcpy(&message->descriptor, CMSG_DATA(cmsg), sizeof (message->descriptor));
}
}
else {
DEBUG_LOG("Unexpected control message level=%d type=%d len=%d",
cmsg->cmsg_level, cmsg->cmsg_type, (int)cmsg->cmsg_len);
}
}
if (!r && message->descriptor != INVALID_SOCK_FD)