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Fix TFTP NAT support by making sure the appropriate fingerprinting checks

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are done.

Reviewed by:	piso
This commit is contained in:
Joe Marcus Clarke 2006-11-07 21:06:48 +00:00
parent 6b8de13ab4
commit 1bc3d4c1d1
1 changed files with 4 additions and 2 deletions
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6
sys/netinet/libalias/alias_smedia.c
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@ -135,14 +135,16 @@ static int
fingerprint(struct libalias *la, struct ip *pip, struct alias_data *ah)
{
if (ah->dport != NULL && ah->aport != NULL && ah->sport != NULL &&
ntohs(*ah->dport) == TFTP_PORT_NUMBER)
return (0);
if (ah->dport == NULL || ah->sport == NULL || ah->lnk == NULL ||
ah->maxpktsize == 0)
return (-1);
if (ntohs(*ah->dport) == RTSP_CONTROL_PORT_NUMBER_1
|| ntohs(*ah->sport) == RTSP_CONTROL_PORT_NUMBER_1
|| ntohs(*ah->dport) == RTSP_CONTROL_PORT_NUMBER_2
|| ntohs(*ah->sport) == RTSP_CONTROL_PORT_NUMBER_2
|| ntohs(*ah->dport) == TFTP_PORT_NUMBER)
|| ntohs(*ah->sport) == RTSP_CONTROL_PORT_NUMBER_2)
return (0);
return (-1);
}