/* * netsniff-ng - the packet sniffing beast * Copyright 2012 Markus Amend , Deutsche Flugsicherung GmbH * Subject to the GPL, version 2. * * http://tools.ietf.org/html/rfc3032 */ #include #include #include /* for ntohs() */ #include #include "proto.h" #include "dissector_eth.h" #include "built_in.h" #include "pkt_buff.h" struct mpls_uchdr { uint32_t mpls_uc_hdr; } __packed; static int mpls_uc_next_proto(struct pkt_buff *pkt) { uint8_t proto; uint16_t key = 0; if (pkt_len(pkt)) proto = *(pkt->data); else return -EIO; /* FIXME: Right now only test for IP Version field */ switch (proto >> 4) { case 4: key = 0x0800; /* IPv4*/ break; case 6: key = 0x86DD; /* IPv6*/ break; default: /* Nothing detected ... */ return -ENOENT; } return key; } static void mpls_uc_full(struct pkt_buff *pkt) { int next; uint32_t mpls_uc_data; struct mpls_uchdr *mpls_uc; uint8_t s = 0; do { mpls_uc = (struct mpls_uchdr *) pkt_pull(pkt, sizeof(*mpls_uc)); if (mpls_uc == NULL) return; mpls_uc_data = ntohl(mpls_uc->mpls_uc_hdr); s = (mpls_uc_data >> 8) & 0x1; tprintf(" [ MPLS "); tprintf("Label (%u), ", mpls_uc_data >> 12); tprintf("Exp (%u), ", (mpls_uc_data >> 9) & 0x7); tprintf("S (%u), ", s); tprintf("TTL (%u)", (mpls_uc_data & 0xFF)); tprintf(" ]\n"); } while (!s); next = mpls_uc_next_proto(pkt); if (next < 0) return; pkt_set_dissector(pkt, ð_lay2, (uint16_t) next); } static void mpls_uc_less(struct pkt_buff *pkt) { int next; uint32_t mpls_uc_data; struct mpls_uchdr *mpls_uc; uint8_t s = 0; do { mpls_uc = (struct mpls_uchdr *) pkt_pull(pkt, sizeof(*mpls_uc)); if (mpls_uc == NULL) return; mpls_uc_data = ntohl(mpls_uc->mpls_uc_hdr); s = (mpls_uc_data >> 8) & 0x1; tprintf(" MPLS/%u", mpls_uc_data >> 12); } while (!s); next = mpls_uc_next_proto(pkt); if (next < 0) return; pkt_set_dissector(pkt, ð_lay2, (uint16_t) next); } struct protocol mpls_uc_ops = { .key = 0x8847, .print_full = mpls_uc_full, .print_less = mpls_uc_less, }; ;id=040587af31228d82c52267f717c9fcdb65f36335'>commitdiff
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authorSimon Horman <simon.horman@netronome.com>2017-01-30 16:19:02 +0100
committerDavid S. Miller <davem@davemloft.net>2017-01-30 16:42:09 -0500
commit040587af31228d82c52267f717c9fcdb65f36335 (patch)
treeb681c1594f967396fcf3ce80f17444183bb37900 /tools/perf/builtin-sched.c
parent0d29ed28da63dd893395c343c7e78b078de93ceb (diff)
net/sched: cls_flower: Correct matching on ICMPv6 code
When matching on the ICMPv6 code ICMPV6_CODE rather than ICMPV4_CODE attributes should be used. This corrects what appears to be a typo. Sample usage: tc qdisc add dev eth0 ingress tc filter add dev eth0 protocol ipv6 parent ffff: flower \ indev eth0 ip_proto icmpv6 type 128 code 0 action drop Without this change the code parameter above is effectively ignored. Fixes: 7b684884fbfa ("net/sched: cls_flower: Support matching on ICMP type and code") Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/builtin-sched.c')