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Remove the mbuf tag after use (for reinjected packets).

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Fixes the packet processing in dummynet l2 rules.

Obtained from:	pfSense
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC (Netgate)
This commit is contained in:
Luiz Otavio O Souza 2016-11-03 00:26:58 +00:00
parent e1ca1a284c
commit e40145851b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=308237
1 changed files with 4 additions and 9 deletions
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13
sys/netpfil/ipfw/ip_fw_pfil.c
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@ -315,20 +315,15 @@ ipfw_check_frame(void *arg, struct mbuf **m0, struct ifnet *ifp, int dir,
struct ip_fw_args args;
struct m_tag *mtag;
/* fetch start point from rule, if any */
/* fetch start point from rule, if any. remove the tag if present. */
mtag = m_tag_locate(*m0, MTAG_IPFW_RULE, 0, NULL);
if (mtag == NULL) {
args.rule.slot = 0;
} else {
/* dummynet packet, already partially processed */
struct ipfw_rule_ref *r;
/* XXX can we free it after use ? */
mtag->m_tag_id = PACKET_TAG_NONE;
r = (struct ipfw_rule_ref *)(mtag + 1);
if (r->info & IPFW_ONEPASS)
args.rule = *((struct ipfw_rule_ref *)(mtag+1));
m_tag_delete(*m0, mtag);
if (args.rule.info & IPFW_ONEPASS)
return (0);
args.rule = *r;
}
/* I need some amt of data to be contiguous */