/* * netsniff-ng - the packet sniffing beast * Copyright 2012 Markus Amend , Deutsche Flugsicherung GmbH * Subject to the GPL, version 2. * * IP Authentication Header described in RFC4302 */ #include #include #include /* for ntohs() */ #include "proto.h" #include "dissector_eth.h" #include "built_in.h" #include "pkt_buff.h" struct auth_hdr { uint8_t h_next_header; uint8_t h_payload_len; uint16_t h_reserved; uint32_t h_spi; uint32_t h_snf; } __packed; static void auth_hdr(struct pkt_buff *pkt) { size_t i, hdr_len; struct auth_hdr *auth_ops; auth_ops = (struct auth_hdr *) pkt_pull(pkt, sizeof(*auth_ops)); if (auth_ops == NULL) return; hdr_len = (auth_ops->h_payload_len * 4) + 8; tprintf(" [ Authentication Header "); tprintf("NextHdr (%u), ", auth_ops->h_next_header); if (hdr_len > pkt_len(pkt)) { tprintf("HdrLen (%u, %zd Bytes %s), ", auth_ops->h_payload_len, hdr_len, colorize_start_full(black, red) "invalid" colorize_end()); return; } tprintf("HdrLen (%u, %zd Bytes), ",auth_ops->h_payload_len, hdr_len); tprintf("Reserved (0x%x), ", ntohs(auth_ops->h_reserved)); /* TODO * Upgrade for Extended (64-bit) Sequence Number * http://tools.ietf.org/html/rfc4302#section-2.5.1 */ tprintf("SPI (0x%x), ", ntohl(auth_ops->h_spi)); tprintf("SNF (0x%x), ", ntohl(auth_ops->h_snf)); tprintf("ICV 0x"); for (i = sizeof(struct auth_hdr); i < hdr_len; i++) { uint8_t *data = pkt_pull(pkt, 1); if (data == NULL) { tprintf("%sinvalid%s", colorize_start_full(black, red), colorize_end()); break; } tprintf("%02x", *data); } tprintf(" ]\n"); pkt_set_dissector(pkt, ð_lay3, auth_ops->h_next_header); } static void auth_hdr_less(struct pkt_buff *pkt) { ssize_t hdr_len; struct auth_hdr *auth_ops; auth_ops = (struct auth_hdr *) pkt_pull(pkt, sizeof(*auth_ops)); if (auth_ops == NULL) return; hdr_len = (auth_ops->h_payload_len * 4) + 8; if (hdr_len > pkt_len(pkt) || hdr_len < 0) return; tprintf(" AH"); pkt_pull(pkt, hdr_len - sizeof(*auth_ops)); pkt_set_dissector(pkt, ð_lay3, auth_ops->h_next_header); } struct protocol ip_auth_ops = { .key = 0x33, .print_full = auth_hdr, .print_less = auth_hdr_less, }; log/tools/arch'>
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authorBhumika Goyal <bhumirks@gmail.com>2017-01-25 00:54:07 +0530
committerDan Williams <dan.j.williams@intel.com>2017-01-31 18:16:30 -0800
commit970d14e3989160ee9e97c7d75ecbc893fd29dab9 (patch)
tree4a731cac4efedb17f86a912ec56c151d26792abe /tools/arch
parent7a308bb3016f57e5be11a677d15b821536419d36 (diff)
nvdimm: constify device_type structures
Declare device_type structure as const as it is only stored in the type field of a device structure. This field is of type const, so add const to declaration of device_type structure. File size before: text data bss dec hex filename 19278 3199 16 22493 57dd nvdimm/namespace_devs.o File size after: text data bss dec hex filename 19929 3160 16 23105 5a41 nvdimm/namespace_devs.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'tools/arch')