/* * netsniff-ng - the packet sniffing beast * Copyright 2012 Markus Amend , Deutsche Flugsicherung GmbH * Subject to the GPL, version 2. * * IPv6 Hop-By-Hop Header described in RFC2460 */ #include #include #include /* for ntohs() */ #include "proto.h" #include "dissector_eth.h" #include "built_in.h" #include "pkt_buff.h" struct hop_by_hophdr { uint8_t h_next_header; uint8_t hdr_len; } __packed; static void dissect_opt_hop(struct pkt_buff *pkt __maybe_unused, ssize_t *opt_len) { /* Have to been upgraded. * http://tools.ietf.org/html/rfc2460#section-4.2 * Look also for proto_ipv6_dest_opts.h, it needs * dissect_opt(), too. */ if (*opt_len) tprintf(", Option(s) recognized "); /* If adding dissector reduce opt_len for each using of pkt_pull * to the same size. */ } static void hop_by_hop(struct pkt_buff *pkt) { uint16_t hdr_ext_len; ssize_t opt_len; struct hop_by_hophdr *hop_ops; hop_ops = (struct hop_by_hophdr *) pkt_pull(pkt, sizeof(*hop_ops)); if (hop_ops == NULL) return; /* Total Header Length in Bytes */ hdr_ext_len = (hop_ops->hdr_len + 1) * 8; /* Options length in Bytes */ opt_len = hdr_ext_len - sizeof(*hop_ops); tprintf("\t [ Hop-by-Hop Options "); tprintf("NextHdr (%u), ", hop_ops->h_next_header); if (opt_len > pkt_len(pkt) || opt_len < 0){ tprintf("HdrExtLen (%u, %u Bytes, %s)", hop_ops->hdr_len, hdr_ext_len, colorize_start_full(black, red) "invalid" colorize_end()); return; } tprintf("HdrExtLen (%u, %u Bytes)", hop_ops->hdr_len, hdr_ext_len); dissect_opt_hop(pkt, &opt_len); tprintf(" ]\n"); pkt_pull(pkt, opt_len); pkt_set_dissector(pkt, ð_lay3, hop_ops->h_next_header); } static void hop_by_hop_less(struct pkt_buff *pkt) { uint16_t hdr_ext_len; ssize_t opt_len; struct hop_by_hophdr *hop_ops; hop_ops = (struct hop_by_hophdr *) pkt_pull(pkt, sizeof(*hop_ops)); if (hop_ops == NULL) return; /* Total Header Length in Bytes */ hdr_ext_len = (hop_ops->hdr_len + 1) * 8; /* Options length in Bytes */ opt_len = hdr_ext_len - sizeof(*hop_ops); if (opt_len > pkt_len(pkt) || opt_len < 0) return; tprintf(" Hop Ops"); pkt_pull(pkt, opt_len); pkt_set_dissector(pkt, ð_lay3, hop_ops->h_next_header); } struct protocol ipv6_hop_by_hop_ops = { .key = 0x0, .print_full = hop_by_hop, .print_less = hop_by_hop_less, }; name='qt'>
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authorAlexey Brodkin <Alexey.Brodkin@synopsys.com>2016-06-29 20:43:58 +0300
committerVineet Gupta <vgupta@synopsys.com>2016-07-19 13:57:34 -0700
commit627c88b68f0b7a1c4c1f12c8c4628e684f2185e2 (patch)
tree312ce3c2aad8655d3c2fb8b6c84b79b1362e8cf5 /Makefile
parent1ce0b5857f661eb7838950db8748ab6514cafa36 (diff)
ARC: typo fix in mm/ioremap.c
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'Makefile')