/* * 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_proto(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_proto(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, };
path: root/drivers/staging
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authorKris Huang <huang_kris@projectara.com>2016-08-09 11:28:37 +0800
committerGreg Kroah-Hartman <gregkh@google.com>2016-08-10 15:47:30 +0200
commit811b1f58610d219610c223a1d63031171a079a7c (patch)
tree538ca6b62053eae8d10106715ae22aacbfa20b9f /drivers/staging
parent57fa2de1e5671c3632c5666ce08e03f1e3dc0242 (diff)
greybus: lights: enable multi color LED support
A backport (commit 79c4de08c0e5a26b04a4ac9e6543dad6379f0b40) was applied in kernel which adding attribute-group support in led-class. Remove the LED_HAVE_GROUPS flag check entirely that allow led drivers to create custom attributes like color/fade_in/fade_out. Testing Done: Compiled and verified on EVT2 and gpbridge-test module with device class daughter board. Signed-off-by: Kris Huang <huang_kris@projectara.com> Reviewed-by: Rui Miguel Silva <rui.silva@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging')