d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add UDPLite support to ipfw(4).

Browse Source 
Now it is possible to use UDPLite's port numbers in rules,
create dynamic states for UDPLite packets and see "UDPLite" for matched
packets in log.

Obtained from:	Yandex LLC
MFC after:	2 weeks
Sponsored by:	Yandex LLC
This commit is contained in:
Andrey V. Elsukov 2018-01-19 12:50:03 +00:00
parent f3afd27f5f
commit d38344208e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=328161
3 changed files with 20 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
sys/netpfil/ipfw/ip_fw2.c
View File

@ -1088,6 +1088,9 @@ check_uidgid(ipfw_insn_u32 *insn, struct ip_fw_args *args, int *ugid_lookupp,
} else if (id->proto == IPPROTO_UDP) {
lookupflags = INPLOOKUP_WILDCARD;
pi = &V_udbinfo;
} else if (id->proto == IPPROTO_UDPLITE) {
lookupflags = INPLOOKUP_WILDCARD;
pi = &V_ulitecbinfo;
} else
return 0;
lookupflags |= INPLOOKUP_RLOCKPCB;
@ -1458,6 +1461,7 @@ do { \
break;
case IPPROTO_UDP:
case IPPROTO_UDPLITE:
PULLUP_TO(hlen, ulp, struct udphdr);
dst_port = UDP(ulp)->uh_dport;
src_port = UDP(ulp)->uh_sport;
@ -1646,6 +1650,7 @@ do { \
break;
case IPPROTO_UDP:
case IPPROTO_UDPLITE:
PULLUP_TO(hlen, ulp, struct udphdr);
dst_port = UDP(ulp)->uh_dport;
src_port = UDP(ulp)->uh_sport;
@ -1777,7 +1782,8 @@ do { \
if (offset != 0)
break;
if (proto == IPPROTO_TCP ||
proto == IPPROTO_UDP)
proto == IPPROTO_UDP ||
proto == IPPROTO_UDPLITE)
match = check_uidgid(
(ipfw_insn_u32 *)cmd,
args, &ucred_lookup,
@ -1916,6 +1922,7 @@ do { \
/* Skip proto without ports */
if (proto != IPPROTO_TCP &&
proto != IPPROTO_UDP &&
proto != IPPROTO_UDPLITE &&
proto != IPPROTO_SCTP)
break;
if (vidx == 2 /* dst-port */)
@ -2072,8 +2079,10 @@ do { \
* to guarantee that we have a
* packet with port info.
*/
if ((proto==IPPROTO_UDP || proto==IPPROTO_TCP ||
proto==IPPROTO_SCTP) && offset == 0) {
if ((proto == IPPROTO_UDP ||
proto == IPPROTO_UDPLITE ||
proto == IPPROTO_TCP ||
proto == IPPROTO_SCTP) && offset == 0) {
u_int16_t x =
(cmd->opcode == O_IP_SRCPORT) ?
src_port : dst_port ;
@ -2460,6 +2469,8 @@ do { \
pi = &V_tcbinfo;
else if (proto == IPPROTO_UDP)
pi = &V_udbinfo;
else if (proto == IPPROTO_UDPLITE)
pi = &V_ulitecbinfo;
else
break;

3
sys/netpfil/ipfw/ip_fw_dynamic.c
View File

@ -584,7 +584,8 @@ dyn_update_proto_state(ipfw_dyn_rule *q, const struct ipfw_flow_id *id,
q->expire = time_uptime + V_dyn_rst_lifetime;
break;
}
} else if (id->proto == IPPROTO_UDP) {
} else if (id->proto == IPPROTO_UDP ||
id->proto == IPPROTO_UDPLITE) {
q->expire = time_uptime + V_dyn_udp_lifetime;
} else {
/* other protocols */

5
sys/netpfil/ipfw/ip_fw_log.c
View File

@ -338,7 +338,10 @@ ipfw_log(struct ip_fw_chain *chain, struct ip_fw *f, u_int hlen,
break;
case IPPROTO_UDP:
len = snprintf(SNPARGS(proto, 0), "UDP %s", src);
case IPPROTO_UDPLITE:
len = snprintf(SNPARGS(proto, 0), "UDP%s%s",
args->f_id.proto == IPPROTO_UDP ? " ": "Lite ",
src);
if (offset == 0)
snprintf(SNPARGS(proto, len), ":%d %s:%d",
ntohs(udp->uh_sport),