[v1,WIP,4/7] linux-gen: packet: add IPv4 checksum validation

Message ID	1515816008-7212-5-git-send-email-odpbot@yandex.ru
State	Superseded
Headers	show Delivered-To: patch@linaro.org Received-SPF: pass (google.com: domain of lng-odp-bounces@lists.linaro.org designates 54.197.127.237 as permitted sender) client-ip=54.197.127.237; From: Github ODP bot <odpbot@yandex.ru> To: lng-odp@lists.linaro.org Date: Sat, 13 Jan 2018 07:00:05 +0300 Message-Id: <1515816008-7212-5-git-send-email-odpbot@yandex.ru> In-Reply-To: <1515816008-7212-1-git-send-email-odpbot@yandex.ru> References: <1515816008-7212-1-git-send-email-odpbot@yandex.ru> Github-pr-num: 389 Subject: [lng-odp] [PATCH v1] [WIP 4/7] linux-gen: packet: add IPv4 checksum validation Precedence: list Errors-To: lng-odp-bounces@lists.linaro.org Sender: "lng-odp" <lng-odp-bounces@lists.linaro.org>
Series	[v1,WIP,1/7] validation: ipsec: fix packet checksums \| expand [v1,WIP,1/7] validation: ipsec: fix packet checksums [v1,WIP,2/7] linux-gen: packet: drop unused function [v1,WIP,3/7] linux-gen: pktio: introduce checksum settings [v1,WIP,4/7] linux-gen: packet: add IPv4 checksum validation [v1,WIP,5/7] linux-gen: chksum: separate checksumming function [v1,WIP,6/7] linux-gen: packet: check UDP checksums [v1,WIP,7/7] linux-gen: pktio: loop: support checksum parsing

diff --git a/platform/linux-generic/include/odp_packet_internal.h b/platform/linux-generic/include/odp_packet_internal.h index 43c8da5cb..86f0d80a5 100644 --- a/platform/linux-generic/include/odp_packet_internal.h +++ b/platform/linux-generic/include/odp_packet_internal.h @@ -296,7 +296,8 @@ int packet_alloc_multi(odp_pool_t pool_hdl, uint32_t len, /* Perform packet parse up to a given protocol layer */ int packet_parse_layer(odp_packet_hdr_t *pkt_hdr, - odp_proto_layer_t layer); + odp_proto_layer_t layer, + odp_proto_chksums_t chksums); /* Reset parser metadata for a new parse */ void packet_parse_reset(odp_packet_hdr_t *pkt_hdr); @@ -333,7 +334,8 @@ static inline void packet_set_ts(odp_packet_hdr_t *pkt_hdr, odp_time_t *ts) } int packet_parse_common(packet_parser_t *pkt_hdr, const uint8_t *ptr, - uint32_t pkt_len, uint32_t seg_len, int layer); + uint32_t pkt_len, uint32_t seg_len, int layer, + odp_proto_chksums_t chksums); int _odp_cls_parse(odp_packet_hdr_t *pkt_hdr, const uint8_t *parseptr); diff --git a/platform/linux-generic/odp_classification.c b/platform/linux-generic/odp_classification.c index 276430923..4d3df49e2 100644 --- a/platform/linux-generic/odp_classification.c +++ b/platform/linux-generic/odp_classification.c @@ -973,7 +973,8 @@ int cls_classify_packet(pktio_entry_t *entry, const uint8_t *base, packet_set_len(pkt_hdr, pkt_len); packet_parse_common(&pkt_hdr->p, base, pkt_len, seg_len, - ODP_PROTO_LAYER_ALL); + ODP_PROTO_LAYER_ALL, + entry->s.in_chksums); cos = cls_select_cos(entry, base, pkt_hdr); if (cos == NULL) diff --git a/platform/linux-generic/odp_packet.c b/platform/linux-generic/odp_packet.c index a0bc8911a..d3c608ab0 100644 --- a/platform/linux-generic/odp_packet.c +++ b/platform/linux-generic/odp_packet.c @@ -2024,7 +2024,8 @@ static inline uint16_t parse_eth(packet_parser_t *prs, const uint8_t **parseptr, * Parser helper function for IPv4 */ static inline uint8_t parse_ipv4(packet_parser_t *prs, const uint8_t **parseptr, - uint32_t *offset, uint32_t frame_len) + uint32_t *offset, uint32_t frame_len, + odp_proto_chksums_t chksums) { const _odp_ipv4hdr_t *ipv4 = (const _odp_ipv4hdr_t *)*parseptr; uint8_t ver = _ODP_IPV4HDR_VER(ipv4->ver_ihl); @@ -2040,6 +2041,14 @@ static inline uint8_t parse_ipv4(packet_parser_t *prs, const uint8_t **parseptr, return 0; } + if (chksums.chksum.ipv4) { + prs->input_flags.l3_chksum_done = 1; + if (odp_chksum_ones_comp16(ipv4, ihl * 4) != 0xffff) { + prs->error_flags.l3_chksum = 1; + return 0; + } + } + *offset += ihl * 4; *parseptr += ihl * 4; @@ -2175,7 +2184,8 @@ static inline int packet_parse_common_l3_l4(packet_parser_t *prs, const uint8_t *parseptr, uint32_t offset, uint32_t frame_len, uint32_t seg_len, - int layer, uint16_t ethtype) + int layer, uint16_t ethtype, + odp_proto_chksums_t chksums) { uint8_t ip_proto; @@ -2191,7 +2201,7 @@ int packet_parse_common_l3_l4(packet_parser_t *prs, const uint8_t *parseptr, switch (ethtype) { case _ODP_ETHTYPE_IPV4: prs->input_flags.ipv4 = 1; - ip_proto = parse_ipv4(prs, &parseptr, &offset, frame_len); + ip_proto = parse_ipv4(prs, &parseptr, &offset, frame_len, chksums); prs->l4_offset = offset; break; @@ -2275,7 +2285,7 @@ int packet_parse_common_l3_l4(packet_parser_t *prs, const uint8_t *parseptr, */ int packet_parse_common(packet_parser_t *prs, const uint8_t *ptr, uint32_t frame_len, uint32_t seg_len, - int layer) + int layer, odp_proto_chksums_t chksums) { uint32_t offset; uint16_t ethtype; @@ -2296,20 +2306,21 @@ int packet_parse_common(packet_parser_t *prs, const uint8_t *ptr, ethtype = parse_eth(prs, &parseptr, &offset, frame_len); return packet_parse_common_l3_l4(prs, parseptr, offset, frame_len, - seg_len, layer, ethtype); + seg_len, layer, ethtype, chksums); } /** * Simple packet parser */ int packet_parse_layer(odp_packet_hdr_t *pkt_hdr, - odp_proto_layer_t layer) + odp_proto_layer_t layer, + odp_proto_chksums_t chksums) { uint32_t seg_len = packet_first_seg_len(pkt_hdr); void *base = packet_data(pkt_hdr); return packet_parse_common(&pkt_hdr->p, base, pkt_hdr->frame_len, - seg_len, layer); + seg_len, layer, chksums); } int odp_packet_parse(odp_packet_t pkt, uint32_t offset, @@ -2336,7 +2347,8 @@ int odp_packet_parse(odp_packet_t pkt, uint32_t offset, if (proto == ODP_PROTO_ETH) { ret = packet_parse_common(&pkt_hdr->p, data, packet_len, - seg_len, layer); + seg_len, layer, + param->chksums); if (ret) return -1; @@ -2348,7 +2360,9 @@ int odp_packet_parse(odp_packet_t pkt, uint32_t offset, ret = packet_parse_common_l3_l4(&pkt_hdr->p, data, offset, packet_len, seg_len, - layer, ethtype); + layer, ethtype, + param->chksums); + if (ret) return -1; diff --git a/platform/linux-generic/pktio/loop.c b/platform/linux-generic/pktio/loop.c index ad2cb39f8..bf6365e94 100644 --- a/platform/linux-generic/pktio/loop.c +++ b/platform/linux-generic/pktio/loop.c @@ -146,7 +146,8 @@ static int loopback_recv(pktio_entry_t *pktio_entry, int index ODP_UNUSED, } } else { packet_parse_layer(pkt_hdr, - pktio_entry->s.config.parser.layer); + pktio_entry->s.config.parser.layer, + pktio_entry->s.in_chksums); } packet_set_ts(pkt_hdr, ts); diff --git a/platform/linux-generic/pktio/pcap.c b/platform/linux-generic/pktio/pcap.c index 596bf6f28..573c31744 100644 --- a/platform/linux-generic/pktio/pcap.c +++ b/platform/linux-generic/pktio/pcap.c @@ -255,7 +255,8 @@ static int pcapif_recv_pkt(pktio_entry_t *pktio_entry, int index ODP_UNUSED, } packet_parse_layer(pkt_hdr, - pktio_entry->s.config.parser.layer); + pktio_entry->s.config.parser.layer, + pktio_entry->s.in_chksums); pktio_entry->s.stats.in_octets += pkt_hdr->frame_len; packet_set_ts(pkt_hdr, ts); diff --git a/platform/linux-generic/pktio/socket.c b/platform/linux-generic/pktio/socket.c index 0a80035f5..d0a55effe 100644 --- a/platform/linux-generic/pktio/socket.c +++ b/platform/linux-generic/pktio/socket.c @@ -676,7 +676,8 @@ static int sock_mmsg_recv(pktio_entry_t *pktio_entry, int index ODP_UNUSED, if (!pktio_cls_enabled(pktio_entry)) packet_parse_layer(pkt_hdr, - pktio_entry->s.config.parser.layer); + pktio_entry->s.config.parser.layer, + pktio_entry->s.in_chksums); pkt_hdr->input = pktio_entry->s.handle; packet_set_ts(pkt_hdr, ts); diff --git a/platform/linux-generic/pktio/socket_mmap.c b/platform/linux-generic/pktio/socket_mmap.c index c63a25398..f31d34dca 100644 --- a/platform/linux-generic/pktio/socket_mmap.c +++ b/platform/linux-generic/pktio/socket_mmap.c @@ -234,7 +234,8 @@ static inline unsigned pkt_mmap_v2_rx(pktio_entry_t *pktio_entry, copy_packet_cls_metadata(&parsed_hdr, hdr); else packet_parse_layer(hdr, - pktio_entry->s.config.parser.layer); + pktio_entry->s.config.parser.layer, + pktio_entry->s.in_chksums); packet_set_ts(hdr, ts); diff --git a/platform/linux-generic/pktio/tap.c b/platform/linux-generic/pktio/tap.c index d8b78f3f8..da7a7b3a2 100644 --- a/platform/linux-generic/pktio/tap.c +++ b/platform/linux-generic/pktio/tap.c @@ -285,7 +285,8 @@ static odp_packet_t pack_odp_pkt(pktio_entry_t *pktio_entry, const void *data, copy_packet_cls_metadata(&parsed_hdr, pkt_hdr); else packet_parse_layer(pkt_hdr, - pktio_entry->s.config.parser.layer); + pktio_entry->s.config.parser.layer, + pktio_entry->s.in_chksums); packet_set_ts(pkt_hdr, ts); pkt_hdr->input = pktio_entry->s.handle;

[v1,WIP,4/7] linux-gen: packet: add IPv4 checksum validation

Commit Message

Patch