mempool: fix slow allocation of large mempools
[dpdk.git] / examples / ipsec-secgw / sa.c
index c672b4a..7f046e3 100644 (file)
@@ -31,6 +31,8 @@
 
 #define IP6_FULL_MASK (sizeof(((struct ip_addr *)NULL)->ip.ip6.ip6) * CHAR_BIT)
 
+#define MBUF_NO_SEC_OFFLOAD(m) ((m->ol_flags & PKT_RX_SEC_OFFLOAD) == 0)
+
 struct supported_cipher_algo {
        const char *keyword;
        enum rte_crypto_cipher_algorithm algo;
@@ -113,7 +115,7 @@ const struct supported_auth_algo auth_algos[] = {
        {
                .keyword = "sha256-hmac",
                .algo = RTE_CRYPTO_AUTH_SHA256_HMAC,
-               .digest_len = 12,
+               .digest_len = 16,
                .key_len = 32
        }
 };
@@ -224,6 +226,7 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
        struct parse_status *status)
 {
        struct ipsec_sa *rule = NULL;
+       struct rte_ipsec_session *ips;
        uint32_t ti; /*token index*/
        uint32_t *ri /*rule index*/;
        uint32_t cipher_algo_p = 0;
@@ -234,6 +237,7 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
        uint32_t mode_p = 0;
        uint32_t type_p = 0;
        uint32_t portid_p = 0;
+       uint32_t fallback_p = 0;
 
        if (strcmp(tokens[0], "in") == 0) {
                ri = &nb_sa_in;
@@ -244,6 +248,7 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
                        return;
 
                rule = &sa_in[*ri];
+               rule->direction = RTE_SECURITY_IPSEC_SA_DIR_INGRESS;
        } else {
                ri = &nb_sa_out;
 
@@ -253,6 +258,7 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
                        return;
 
                rule = &sa_out[*ri];
+               rule->direction = RTE_SECURITY_IPSEC_SA_DIR_EGRESS;
        }
 
        /* spi number */
@@ -262,6 +268,7 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
        if (atoi(tokens[1]) == INVALID_SPI)
                return;
        rule->spi = atoi(tokens[1]);
+       ips = ipsec_get_primary_session(rule);
 
        for (ti = 2; ti < n_tokens; ti++) {
                if (strcmp(tokens[ti], "mode") == 0) {
@@ -558,18 +565,18 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
                                return;
 
                        if (strcmp(tokens[ti], "inline-crypto-offload") == 0)
-                               rule->type =
+                               ips->type =
                                        RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO;
                        else if (strcmp(tokens[ti],
                                        "inline-protocol-offload") == 0)
-                               rule->type =
+                               ips->type =
                                RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL;
                        else if (strcmp(tokens[ti],
                                        "lookaside-protocol-offload") == 0)
-                               rule->type =
+                               ips->type =
                                RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL;
                        else if (strcmp(tokens[ti], "no-offload") == 0)
-                               rule->type = RTE_SECURITY_ACTION_TYPE_NONE;
+                               ips->type = RTE_SECURITY_ACTION_TYPE_NONE;
                        else {
                                APP_CHECK(0, status, "Invalid input \"%s\"",
                                                tokens[ti]);
@@ -594,6 +601,45 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
                        continue;
                }
 
+               if (strcmp(tokens[ti], "fallback") == 0) {
+                       struct rte_ipsec_session *fb;
+
+                       APP_CHECK(app_sa_prm.enable, status, "Fallback session "
+                               "not allowed for legacy mode.");
+                       if (status->status < 0)
+                               return;
+                       APP_CHECK(ips->type ==
+                               RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO, status,
+                               "Fallback session allowed if primary session "
+                               "is of type inline-crypto-offload only.");
+                       if (status->status < 0)
+                               return;
+                       APP_CHECK(rule->direction ==
+                               RTE_SECURITY_IPSEC_SA_DIR_INGRESS, status,
+                               "Fallback session not allowed for egress "
+                               "rule");
+                       if (status->status < 0)
+                               return;
+                       APP_CHECK_PRESENCE(fallback_p, tokens[ti], status);
+                       if (status->status < 0)
+                               return;
+                       INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
+                       if (status->status < 0)
+                               return;
+                       fb = ipsec_get_fallback_session(rule);
+                       if (strcmp(tokens[ti], "lookaside-none") == 0) {
+                               fb->type = RTE_SECURITY_ACTION_TYPE_NONE;
+                       } else {
+                               APP_CHECK(0, status, "unrecognized fallback "
+                                       "type %s.", tokens[ti]);
+                               return;
+                       }
+
+                       rule->fallback_sessions = 1;
+                       fallback_p = 1;
+                       continue;
+               }
+
                /* unrecognizeable input */
                APP_CHECK(0, status, "unrecognized input \"%s\"",
                        tokens[ti]);
@@ -624,11 +670,11 @@ parse_sa_tokens(char **tokens, uint32_t n_tokens,
        if (status->status < 0)
                return;
 
-       if ((rule->type != RTE_SECURITY_ACTION_TYPE_NONE) && (portid_p == 0))
+       if ((ips->type != RTE_SECURITY_ACTION_TYPE_NONE) && (portid_p == 0))
                printf("Missing portid option, falling back to non-offload\n");
 
        if (!type_p || !portid_p) {
-               rule->type = RTE_SECURITY_ACTION_TYPE_NONE;
+               ips->type = RTE_SECURITY_ACTION_TYPE_NONE;
                rule->portid = -1;
        }
 
@@ -640,6 +686,8 @@ print_one_sa_rule(const struct ipsec_sa *sa, int inbound)
 {
        uint32_t i;
        uint8_t a, b, c, d;
+       const struct rte_ipsec_session *ips;
+       const struct rte_ipsec_session *fallback_ips;
 
        printf("\tspi_%s(%3u):", inbound?"in":"out", sa->spi);
 
@@ -695,8 +743,10 @@ print_one_sa_rule(const struct ipsec_sa *sa, int inbound)
                printf("Transport ");
                break;
        }
+
+       ips = &sa->sessions[IPSEC_SESSION_PRIMARY];
        printf(" type:");
-       switch (sa->type) {
+       switch (ips->type) {
        case RTE_SECURITY_ACTION_TYPE_NONE:
                printf("no-offload ");
                break;
@@ -710,6 +760,15 @@ print_one_sa_rule(const struct ipsec_sa *sa, int inbound)
                printf("lookaside-protocol-offload ");
                break;
        }
+
+       fallback_ips = &sa->sessions[IPSEC_SESSION_FALLBACK];
+       if (fallback_ips != NULL && sa->fallback_sessions > 0) {
+               printf("inline fallback: ");
+               if (fallback_ips->type == RTE_SECURITY_ACTION_TYPE_NONE)
+                       printf("lookaside-none");
+               else
+                       printf("invalid");
+       }
        printf("\n");
 }
 
@@ -743,7 +802,7 @@ sa_create(const char *name, int32_t socket_id)
                        RTE_MEMZONE_1GB | RTE_MEMZONE_SIZE_HINT_ONLY);
        if (mz == NULL) {
                printf("Failed to allocate SA DB memory\n");
-               rte_errno = -ENOMEM;
+               rte_errno = ENOMEM;
                return NULL;
        }
 
@@ -756,8 +815,16 @@ static int
 check_eth_dev_caps(uint16_t portid, uint32_t inbound)
 {
        struct rte_eth_dev_info dev_info;
+       int retval;
 
-       rte_eth_dev_info_get(portid, &dev_info);
+       retval = rte_eth_dev_info_get(portid, &dev_info);
+       if (retval != 0) {
+               RTE_LOG(ERR, IPSEC,
+                       "Error during getting device (port %u) info: %s\n",
+                       portid, strerror(-retval));
+
+               return retval;
+       }
 
        if (inbound) {
                if ((dev_info.rx_offload_capa &
@@ -868,12 +935,15 @@ sa_add_address_inline_crypto(struct ipsec_sa *sa)
 
 static int
 sa_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
-               uint32_t nb_entries, uint32_t inbound)
+               uint32_t nb_entries, uint32_t inbound,
+               struct socket_ctx *skt_ctx)
 {
        struct ipsec_sa *sa;
        uint32_t i, idx;
        uint16_t iv_length, aad_length;
        int inline_status;
+       int32_t rc;
+       struct rte_ipsec_session *ips;
 
        /* for ESN upper 32 bits of SQN also need to be part of AAD */
        aad_length = (app_sa_prm.enable_esn != 0) ? sizeof(uint32_t) : 0;
@@ -888,16 +958,14 @@ sa_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
                }
                *sa = entries[i];
                sa->seq = 0;
+               ips = ipsec_get_primary_session(sa);
 
-               if (sa->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL ||
-                       sa->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
+               if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL ||
+                       ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
                        if (check_eth_dev_caps(sa->portid, inbound))
                                return -EINVAL;
                }
 
-               sa->direction = (inbound == 1) ?
-                               RTE_SECURITY_IPSEC_SA_DIR_INGRESS :
-                               RTE_SECURITY_IPSEC_SA_DIR_EGRESS;
 
                switch (WITHOUT_TRANSPORT_VERSION(sa->flags)) {
                case IP4_TUNNEL:
@@ -905,7 +973,7 @@ sa_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
                        sa->dst.ip.ip4 = rte_cpu_to_be_32(sa->dst.ip.ip4);
                        break;
                case TRANSPORT:
-                       if (sa->type ==
+                       if (ips->type ==
                                RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
                                inline_status =
                                        sa_add_address_inline_crypto(sa);
@@ -916,7 +984,8 @@ sa_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
                }
 
                if (sa->aead_algo == RTE_CRYPTO_AEAD_AES_GCM) {
-                       iv_length = 16;
+                       struct rte_ipsec_session *ips;
+                       iv_length = 12;
 
                        sa_ctx->xf[idx].a.type = RTE_CRYPTO_SYM_XFORM_AEAD;
                        sa_ctx->xf[idx].a.aead.algo = sa->aead_algo;
@@ -936,6 +1005,18 @@ sa_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
 
                        sa->xforms = &sa_ctx->xf[idx].a;
 
+                       ips = ipsec_get_primary_session(sa);
+                       if (ips->type ==
+                               RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL ||
+                               ips->type ==
+                               RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
+                               rc = create_inline_session(skt_ctx, sa, ips);
+                               if (rc != 0) {
+                                       RTE_LOG(ERR, IPSEC_ESP,
+                                               "create_inline_session() failed\n");
+                                       return -EINVAL;
+                               }
+                       }
                        print_one_sa_rule(sa, inbound);
                } else {
                        switch (sa->cipher_algo) {
@@ -1011,16 +1092,16 @@ sa_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
 
 static inline int
 sa_out_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
-               uint32_t nb_entries)
+               uint32_t nb_entries, struct socket_ctx *skt_ctx)
 {
-       return sa_add_rules(sa_ctx, entries, nb_entries, 0);
+       return sa_add_rules(sa_ctx, entries, nb_entries, 0, skt_ctx);
 }
 
 static inline int
 sa_in_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
-               uint32_t nb_entries)
+               uint32_t nb_entries, struct socket_ctx *skt_ctx)
 {
-       return sa_add_rules(sa_ctx, entries, nb_entries, 1);
+       return sa_add_rules(sa_ctx, entries, nb_entries, 1, skt_ctx);
 }
 
 /*
@@ -1034,7 +1115,7 @@ fill_ipsec_app_sa_prm(struct rte_ipsec_sa_prm *prm,
 
        prm->flags = app_prm->flags;
        prm->ipsec_xform.options.esn = app_prm->enable_esn;
-       prm->replay_win_sz = app_prm->window_size;
+       prm->ipsec_xform.replay_win_sz = app_prm->window_size;
 }
 
 static int
@@ -1063,6 +1144,8 @@ fill_ipsec_sa_prm(struct rte_ipsec_sa_prm *prm, const struct ipsec_sa *ss,
        prm->ipsec_xform.mode = (IS_TRANSPORT(ss->flags)) ?
                RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT :
                RTE_SECURITY_IPSEC_SA_MODE_TUNNEL;
+       prm->ipsec_xform.options.ecn = 1;
+       prm->ipsec_xform.options.copy_dscp = 1;
 
        if (IS_IP4_TUNNEL(ss->flags)) {
                prm->ipsec_xform.tunnel.type = RTE_SECURITY_IPSEC_TUNNEL_IPV4;
@@ -1084,22 +1167,23 @@ fill_ipsec_sa_prm(struct rte_ipsec_sa_prm *prm, const struct ipsec_sa *ss,
        return 0;
 }
 
-static void
-fill_ipsec_session(struct rte_ipsec_session *ss, struct rte_ipsec_sa *sa,
-       const struct ipsec_sa *lsa)
+static int
+fill_ipsec_session(struct rte_ipsec_session *ss, struct rte_ipsec_sa *sa)
 {
+       int32_t rc = 0;
+
        ss->sa = sa;
-       ss->type = lsa->type;
 
-       /* setup crypto section */
-       if (ss->type == RTE_SECURITY_ACTION_TYPE_NONE) {
-               ss->crypto.ses = lsa->crypto_session;
-       /* setup session action type */
-       } else {
-               ss->security.ses = lsa->sec_session;
-               ss->security.ctx = lsa->security_ctx;
-               ss->security.ol_flags = lsa->ol_flags;
+       if (ss->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
+               ss->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) {
+               if (ss->security.ses != NULL) {
+                       rc = rte_ipsec_session_prepare(ss);
+                       if (rc != 0)
+                               memset(ss, 0, sizeof(*ss));
+               }
        }
+
+       return rc;
 }
 
 /*
@@ -1110,6 +1194,7 @@ ipsec_sa_init(struct ipsec_sa *lsa, struct rte_ipsec_sa *sa, uint32_t sa_size)
 {
        int rc;
        struct rte_ipsec_sa_prm prm;
+       struct rte_ipsec_session *ips;
        struct rte_ipv4_hdr v4  = {
                .version_ihl = IPVERSION << 4 |
                        sizeof(v4) / RTE_IPV4_IHL_MULTIPLIER,
@@ -1134,8 +1219,17 @@ ipsec_sa_init(struct ipsec_sa *lsa, struct rte_ipsec_sa *sa, uint32_t sa_size)
        if (rc < 0)
                return rc;
 
-       fill_ipsec_session(&lsa->ips, sa, lsa);
-       return 0;
+       /* init primary processing session */
+       ips = ipsec_get_primary_session(lsa);
+       rc = fill_ipsec_session(ips, sa);
+       if (rc != 0)
+               return rc;
+
+       /* init inline fallback processing session */
+       if (lsa->fallback_sessions == 1)
+               rc = fill_ipsec_session(ipsec_get_fallback_session(lsa), sa);
+
+       return rc;
 }
 
 /*
@@ -1238,7 +1332,7 @@ sa_init(struct socket_ctx *ctx, int32_t socket_id)
                                "context %s in socket %d\n", rte_errno,
                                name, socket_id);
 
-               sa_in_add_rules(ctx->sa_in, sa_in, nb_sa_in);
+               sa_in_add_rules(ctx->sa_in, sa_in, nb_sa_in, ctx);
 
                if (app_sa_prm.enable != 0) {
                        rc = ipsec_satbl_init(ctx->sa_in, sa_in, nb_sa_in,
@@ -1258,7 +1352,7 @@ sa_init(struct socket_ctx *ctx, int32_t socket_id)
                                "context %s in socket %d\n", rte_errno,
                                name, socket_id);
 
-               sa_out_add_rules(ctx->sa_out, sa_out, nb_sa_out);
+               sa_out_add_rules(ctx->sa_out, sa_out, nb_sa_out, ctx);
 
                if (app_sa_prm.enable != 0) {
                        rc = ipsec_satbl_init(ctx->sa_out, sa_out, nb_sa_out,
@@ -1289,13 +1383,14 @@ inbound_sa_check(struct sa_ctx *sa_ctx, struct rte_mbuf *m, uint32_t sa_idx)
 
 static inline void
 single_inbound_lookup(struct ipsec_sa *sadb, struct rte_mbuf *pkt,
-               struct ipsec_sa **sa_ret)
+               void **sa_ret)
 {
        struct rte_esp_hdr *esp;
        struct ip *ip;
        uint32_t *src4_addr;
        uint8_t *src6_addr;
        struct ipsec_sa *sa;
+       void *result_sa;
 
        *sa_ret = NULL;
 
@@ -1305,33 +1400,48 @@ single_inbound_lookup(struct ipsec_sa *sadb, struct rte_mbuf *pkt,
        if (esp->spi == INVALID_SPI)
                return;
 
-       sa = &sadb[SPI2IDX(rte_be_to_cpu_32(esp->spi))];
+       result_sa = sa = &sadb[SPI2IDX(rte_be_to_cpu_32(esp->spi))];
        if (rte_be_to_cpu_32(esp->spi) != sa->spi)
                return;
 
+       /*
+        * Mark need for inline offload fallback on the LSB of SA pointer.
+        * Thanks to packet grouping mechanism which ipsec_process is using
+        * packets marked for fallback processing will form separate group.
+        *
+        * Because it is not safe to use SA pointer it is casted to generic
+        * pointer to prevent from unintentional use. Use ipsec_mask_saptr
+        * to get valid struct pointer.
+        */
+       if (MBUF_NO_SEC_OFFLOAD(pkt) && sa->fallback_sessions > 0) {
+               uintptr_t intsa = (uintptr_t)sa;
+               intsa |= IPSEC_SA_OFFLOAD_FALLBACK_FLAG;
+               result_sa = (void *)intsa;
+       }
+
        switch (WITHOUT_TRANSPORT_VERSION(sa->flags)) {
        case IP4_TUNNEL:
                src4_addr = RTE_PTR_ADD(ip, offsetof(struct ip, ip_src));
                if ((ip->ip_v == IPVERSION) &&
                                (sa->src.ip.ip4 == *src4_addr) &&
                                (sa->dst.ip.ip4 == *(src4_addr + 1)))
-                       *sa_ret = sa;
+                       *sa_ret = result_sa;
                break;
        case IP6_TUNNEL:
                src6_addr = RTE_PTR_ADD(ip, offsetof(struct ip6_hdr, ip6_src));
                if ((ip->ip_v == IP6_VERSION) &&
                                !memcmp(&sa->src.ip.ip6.ip6, src6_addr, 16) &&
                                !memcmp(&sa->dst.ip.ip6.ip6, src6_addr + 16, 16))
-                       *sa_ret = sa;
+                       *sa_ret = result_sa;
                break;
        case TRANSPORT:
-               *sa_ret = sa;
+               *sa_ret = result_sa;
        }
 }
 
 void
 inbound_sa_lookup(struct sa_ctx *sa_ctx, struct rte_mbuf *pkts[],
-               struct ipsec_sa *sa[], uint16_t nb_pkts)
+               void *sa[], uint16_t nb_pkts)
 {
        uint32_t i;
 
@@ -1341,7 +1451,7 @@ inbound_sa_lookup(struct sa_ctx *sa_ctx, struct rte_mbuf *pkts[],
 
 void
 outbound_sa_lookup(struct sa_ctx *sa_ctx, uint32_t sa_idx[],
-               struct ipsec_sa *sa[], uint16_t nb_pkts)
+               void *sa[], uint16_t nb_pkts)
 {
        uint32_t i;
 
@@ -1358,6 +1468,7 @@ sa_check_offloads(uint16_t port_id, uint64_t *rx_offloads,
 {
        struct ipsec_sa *rule;
        uint32_t idx_sa;
+       enum rte_security_session_action_type rule_type;
 
        *rx_offloads = 0;
        *tx_offloads = 0;
@@ -1365,8 +1476,9 @@ sa_check_offloads(uint16_t port_id, uint64_t *rx_offloads,
        /* Check for inbound rules that use offloads and use this port */
        for (idx_sa = 0; idx_sa < nb_sa_in; idx_sa++) {
                rule = &sa_in[idx_sa];
-               if ((rule->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
-                               rule->type ==
+               rule_type = ipsec_get_action_type(rule);
+               if ((rule_type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
+                               rule_type ==
                                RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL)
                                && rule->portid == port_id)
                        *rx_offloads |= DEV_RX_OFFLOAD_SECURITY;
@@ -1375,8 +1487,9 @@ sa_check_offloads(uint16_t port_id, uint64_t *rx_offloads,
        /* Check for outbound rules that use offloads and use this port */
        for (idx_sa = 0; idx_sa < nb_sa_out; idx_sa++) {
                rule = &sa_out[idx_sa];
-               if ((rule->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
-                               rule->type ==
+               rule_type = ipsec_get_action_type(rule);
+               if ((rule_type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
+                               rule_type ==
                                RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL)
                                && rule->portid == port_id)
                        *tx_offloads |= DEV_TX_OFFLOAD_SECURITY;