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ntp: check if packet was received by right socket

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This commit is contained in:
Miroslav Lichvar
2014-03-24 17:10:35 +01:00
parent 9a657cd4a3
commit f2c4ab09a8
3 changed files with 12 additions and 2 deletions
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9
ntp_core.c
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@@ -1275,6 +1275,7 @@ NCR_ProcessKnown
struct timeval *now, /* timestamp at time of receipt */
double now_err,
NCR_Instance inst, /* the instance record for this peer/server */
int sock_fd, /* the receiving socket */
int length /* the length of the received packet */
)
{
@@ -1282,6 +1283,14 @@ NCR_ProcessKnown
int version;
int auth_len;
/* Make sure the packet was received by the sending socket */
if (sock_fd != inst->local_addr.sock_fd) {
DEBUG_LOG(LOGF_NtpCore,
"Packet received by wrong socket %d (expected %d)",
sock_fd, inst->local_addr.sock_fd);
return;
}
/* Ignore packets from offline sources */
if (inst->opmode == MD_OFFLINE) {
return;