summaryrefslogtreecommitdiffstats
path: root/src/vnet/interface_output.c
diff options
context:
space:
mode:
authorNeale Ranns <nranns@cisco.com>2019-04-13 15:30:21 +0000
committerNeale Ranns <nranns@cisco.com>2019-04-15 19:58:31 +0000
commit8f63c2ebe655e7cd27236f2327d2e9082f782f9b (patch)
treeb73aee893967268414c8c722aca0aa11eadf2b70 /src/vnet/interface_output.c
parent740ef6d02470aa9bd0a6dc490489b7269f3084f5 (diff)
IPSEC: crypto overflow
decrypting too many bytes. Change-Id: I4663e70271d9734eda7f9a127967b9224c0e5efc Signed-off-by: Neale Ranns <nranns@cisco.com> (cherry picked from commit 0a0c7eef787dbf29c8b018420cb9d244cbe8d2dd)
Diffstat (limited to 'src/vnet/interface_output.c')
0 files changed, 0 insertions, 0 deletions
='#n147'>147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 
/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright 2008-2018 Cisco Systems, Inc.  All rights reserved.
 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 */

#ifndef _ENIC_RXTX_COMMON_H_
#define _ENIC_RXTX_COMMON_H_

static inline uint16_t
enic_cq_rx_desc_ciflags(struct cq_enet_rq_desc *crd)
{
	return le16_to_cpu(crd->completed_index_flags) & ~CQ_DESC_COMP_NDX_MASK;
}

static inline uint16_t
enic_cq_rx_desc_bwflags(struct cq_enet_rq_desc *crd)
{
	return le16_to_cpu(crd->bytes_written_flags) &
			   ~CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK;
}

static inline uint8_t
enic_cq_rx_desc_packet_error(uint16_t bwflags)
{
	return (bwflags & CQ_ENET_RQ_DESC_FLAGS_TRUNCATED) ==
		CQ_ENET_RQ_DESC_FLAGS_TRUNCATED;
}

static inline uint8_t
enic_cq_rx_desc_eop(uint16_t ciflags)
{
	return (ciflags & CQ_ENET_RQ_DESC_FLAGS_EOP)
		== CQ_ENET_RQ_DESC_FLAGS_EOP;
}

static inline uint8_t
enic_cq_rx_desc_csum_not_calc(struct cq_enet_rq_desc *cqrd)
{
	return (le16_to_cpu(cqrd->q_number_rss_type_flags) &
		CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC) ==
		CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC;
}

static inline uint8_t
enic_cq_rx_desc_ipv4_csum_ok(struct cq_enet_rq_desc *cqrd)
{
	return (cqrd->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK) ==
		CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK;
}

static inline uint8_t
enic_cq_rx_desc_tcp_udp_csum_ok(struct cq_enet_rq_desc *cqrd)
{
	return (cqrd->flags & CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK) ==
		CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK;
}

static inline uint8_t
enic_cq_rx_desc_rss_type(struct cq_enet_rq_desc *cqrd)
{
	return (uint8_t)((le16_to_cpu(cqrd->q_number_rss_type_flags) >>
		CQ_DESC_Q_NUM_BITS) & CQ_ENET_RQ_DESC_RSS_TYPE_MASK);
}

static inline uint32_t
enic_cq_rx_desc_rss_hash(struct cq_enet_rq_desc *cqrd)
{
	return le32_to_cpu(cqrd->rss_hash);
}

static inline uint16_t
enic_cq_rx_desc_vlan(struct cq_enet_rq_desc *cqrd)
{
	return le16_to_cpu(cqrd->vlan);
}

static inline uint16_t
enic_cq_rx_desc_n_bytes(struct cq_desc *cqd)
{
	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
	return le16_to_cpu(cqrd->bytes_written_flags) &
		CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK;
}


static inline uint8_t
enic_cq_rx_check_err(struct cq_desc *cqd)
{
	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
	uint16_t bwflags;

	bwflags = enic_cq_rx_desc_bwflags(cqrd);
	if (unlikely(enic_cq_rx_desc_packet_error(bwflags)))
		return 1;
	return 0;
}

/* Lookup table to translate RX CQ flags to mbuf flags. */
static uint32_t
enic_cq_rx_flags_to_pkt_type(struct cq_desc *cqd, uint8_t tnl)
{
	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
	uint8_t cqrd_flags = cqrd->flags;
	/*
	 * Odd-numbered entries are for tunnel packets. All packet type info
	 * applies to the inner packet, and there is no info on the outer
	 * packet. The outer flags in these entries exist only to avoid
	 * changing enic_cq_rx_to_pkt_flags(). They are cleared from mbuf
	 * afterwards.
	 *
	 * Also, as there is no tunnel type info (VXLAN, NVGRE, or GENEVE), set
	 * RTE_PTYPE_TUNNEL_GRENAT..
	 */
	static const uint32_t cq_type_table[128] __rte_cache_aligned = {
		[0x00] = RTE_PTYPE_UNKNOWN,
		[0x01] = RTE_PTYPE_UNKNOWN |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER,
		[0x20] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_NONFRAG,
		[0x21] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_NONFRAG |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_NONFRAG,
		[0x22] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP,
		[0x23] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_UDP,
		[0x24] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_TCP,
		[0x25] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_TCP |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_TCP,
		[0x60] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG,
		[0x61] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_FRAG,
		[0x62] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG,
		[0x63] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_FRAG,
		[0x64] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG,
		[0x65] = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_FRAG,
		[0x10] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_NONFRAG,
		[0x11] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_NONFRAG |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_NONFRAG,
		[0x12] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_UDP,
		[0x13] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_UDP,
		[0x14] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_TCP,
		[0x15] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_TCP |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_TCP,
		[0x50] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG,
		[0x51] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_FRAG,
		[0x52] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG,
		[0x53] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_FRAG,
		[0x54] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG,
		[0x55] = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L4_FRAG |
			 RTE_PTYPE_TUNNEL_GRENAT |
			 RTE_PTYPE_INNER_L2_ETHER |
			 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
			 RTE_PTYPE_INNER_L4_FRAG,
		/* All others reserved */
	};
	cqrd_flags &= CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT
		| CQ_ENET_RQ_DESC_FLAGS_IPV4 | CQ_ENET_RQ_DESC_FLAGS_IPV6
		| CQ_ENET_RQ_DESC_FLAGS_TCP | CQ_ENET_RQ_DESC_FLAGS_UDP;
	return cq_type_table[cqrd_flags + tnl];
}

static void
enic_cq_rx_to_pkt_flags(struct cq_desc *cqd, struct rte_mbuf *mbuf)
{
	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
	uint16_t bwflags, pkt_flags = 0, vlan_tci;
	bwflags = enic_cq_rx_desc_bwflags(cqrd);
	vlan_tci = enic_cq_rx_desc_vlan(cqrd);

	/* VLAN STRIPPED flag. The L2 packet type updated here also */
	if (bwflags & CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED) {
		pkt_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
		mbuf->packet_type |= RTE_PTYPE_L2_ETHER;
	} else {
		if (vlan_tci != 0) {
			pkt_flags |= PKT_RX_VLAN;
			mbuf->packet_type |= RTE_PTYPE_L2_ETHER_VLAN;
		} else {
			mbuf->packet_type |= RTE_PTYPE_L2_ETHER;
		}
	}
	mbuf->vlan_tci = vlan_tci;

	if ((cqd->type_color & CQ_DESC_TYPE_MASK) == CQ_DESC_TYPE_CLASSIFIER) {
		struct cq_enet_rq_clsf_desc *clsf_cqd;
		uint16_t filter_id;
		clsf_cqd = (struct cq_enet_rq_clsf_desc *)cqd;
		filter_id = clsf_cqd->filter_id;
		if (filter_id) {
			pkt_flags |= PKT_RX_FDIR;
			if (filter_id != ENIC_MAGIC_FILTER_ID) {
				mbuf->hash.fdir.hi = clsf_cqd->filter_id;
				pkt_flags |= PKT_RX_FDIR_ID;
			}
		}
	} else if (enic_cq_rx_desc_rss_type(cqrd)) {
		/* RSS flag */
		pkt_flags |= PKT_RX_RSS_HASH;
		mbuf->hash.rss = enic_cq_rx_desc_rss_hash(cqrd);
	}

	/* checksum flags */
	if (mbuf->packet_type & (RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L3_IPV6)) {
		if (!enic_cq_rx_desc_csum_not_calc(cqrd)) {
			uint32_t l4_flags;
			l4_flags = mbuf->packet_type & RTE_PTYPE_L4_MASK;

			/*
			 * When overlay offload is enabled, the NIC may
			 * set ipv4_csum_ok=1 if the inner packet is IPv6..
			 * So, explicitly check for IPv4 before checking
			 * ipv4_csum_ok.
			 */
			if (mbuf->packet_type & RTE_PTYPE_L3_IPV4) {
				if (enic_cq_rx_desc_ipv4_csum_ok(cqrd))
					pkt_flags |= PKT_RX_IP_CKSUM_GOOD;
				else
					pkt_flags |= PKT_RX_IP_CKSUM_BAD;
			}

			if (l4_flags == RTE_PTYPE_L4_UDP ||
			    l4_flags == RTE_PTYPE_L4_TCP) {
				if (enic_cq_rx_desc_tcp_udp_csum_ok(cqrd))
					pkt_flags |= PKT_RX_L4_CKSUM_GOOD;
				else
					pkt_flags |= PKT_RX_L4_CKSUM_BAD;
			}
		}
	}

	mbuf->ol_flags = pkt_flags;
}

#endif /* _ENIC_RXTX_COMMON_H_ */