/* * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include #include #include "odp-util.h" #include #include #include #include #include #include #include #include "byte-order.h" #include "coverage.h" #include "dpif.h" #include "dynamic-string.h" #include "flow.h" #include "netlink.h" #include "ofpbuf.h" #include "packets.h" #include "simap.h" #include "timeval.h" #include "util.h" #include "vlog.h" VLOG_DEFINE_THIS_MODULE(odp_util); /* The interface between userspace and kernel uses an "OVS_*" prefix. * Since this is fairly non-specific for the OVS userspace components, * "ODP_*" (Open vSwitch Datapath) is used as the prefix for * interactions with the datapath. */ /* The set of characters that may separate one action or one key attribute * from another. */ static const char *delimiters = ", \t\r\n"; static int parse_odp_key_mask_attr(const char *, const struct simap *port_names, struct ofpbuf *, struct ofpbuf *); static void format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma, const struct hmap *portno_names, struct ds *ds, bool verbose); /* Returns one the following for the action with the given OVS_ACTION_ATTR_* * 'type': * * - For an action whose argument has a fixed length, returned that * nonnegative length in bytes. * * - For an action with a variable-length argument, returns -2. * * - For an invalid 'type', returns -1. */ static int odp_action_len(uint16_t type) { if (type > OVS_ACTION_ATTR_MAX) { return -1; } switch ((enum ovs_action_attr) type) { case OVS_ACTION_ATTR_OUTPUT: return sizeof(uint32_t); case OVS_ACTION_ATTR_USERSPACE: return -2; case OVS_ACTION_ATTR_PUSH_VLAN: return sizeof(struct ovs_action_push_vlan); case OVS_ACTION_ATTR_POP_VLAN: return 0; case OVS_ACTION_ATTR_PUSH_MPLS: return sizeof(struct ovs_action_push_mpls); case OVS_ACTION_ATTR_POP_MPLS: return sizeof(ovs_be16); case OVS_ACTION_ATTR_RECIRC: return sizeof(uint32_t); case OVS_ACTION_ATTR_HASH: return sizeof(struct ovs_action_hash); case OVS_ACTION_ATTR_SET: return -2; case OVS_ACTION_ATTR_SAMPLE: return -2; case OVS_ACTION_ATTR_UNSPEC: case __OVS_ACTION_ATTR_MAX: return -1; } return -1; } /* Returns a string form of 'attr'. The return value is either a statically * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize' * should be at least OVS_KEY_ATTR_BUFSIZE. */ enum { OVS_KEY_ATTR_BUFSIZE = 3 + INT_STRLEN(unsigned int) + 1 }; static const char * ovs_key_attr_to_string(enum ovs_key_attr attr, char *namebuf, size_t bufsize) { switch (attr) { case OVS_KEY_ATTR_UNSPEC: return "unspec"; case OVS_KEY_ATTR_ENCAP: return "encap"; case OVS_KEY_ATTR_PRIORITY: return "skb_priority"; case OVS_KEY_ATTR_SKB_MARK: return "skb_mark"; case OVS_KEY_ATTR_TUNNEL: return "tunnel"; case OVS_KEY_ATTR_IN_PORT: return "in_port"; case OVS_KEY_ATTR_ETHERNET: return "eth"; case OVS_KEY_ATTR_VLAN: return "vlan"; case OVS_KEY_ATTR_ETHERTYPE: return "eth_type"; case OVS_KEY_ATTR_IPV4: return "ipv4"; case OVS_KEY_ATTR_IPV6: return "ipv6"; case OVS_KEY_ATTR_TCP: return "tcp"; case OVS_KEY_ATTR_TCP_FLAGS: return "tcp_flags"; case OVS_KEY_ATTR_UDP: return "udp"; case OVS_KEY_ATTR_SCTP: return "sctp"; case OVS_KEY_ATTR_ICMP: return "icmp"; case OVS_KEY_ATTR_ICMPV6: return "icmpv6"; case OVS_KEY_ATTR_ARP: return "arp"; case OVS_KEY_ATTR_ND: return "nd"; case OVS_KEY_ATTR_MPLS: return "mpls"; case OVS_KEY_ATTR_DP_HASH: return "dp_hash"; case OVS_KEY_ATTR_RECIRC_ID: return "recirc_id"; case __OVS_KEY_ATTR_MAX: default: snprintf(namebuf, bufsize, "key%u", (unsigned int) attr); return namebuf; } } static void format_generic_odp_action(struct ds *ds, const struct nlattr *a) { size_t len = nl_attr_get_size(a); ds_put_format(ds, "action%"PRId16, nl_attr_type(a)); if (len) { const uint8_t *unspec; unsigned int i; unspec = nl_attr_get(a); for (i = 0; i < len; i++) { ds_put_char(ds, i ? ' ': '('); ds_put_format(ds, "%02x", unspec[i]); } ds_put_char(ds, ')'); } } static void format_odp_sample_action(struct ds *ds, const struct nlattr *attr) { static const struct nl_policy ovs_sample_policy[] = { [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 }, [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED } }; struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)]; double percentage; const struct nlattr *nla_acts; int len; ds_put_cstr(ds, "sample"); if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) { ds_put_cstr(ds, "(error)"); return; } percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) / UINT32_MAX; ds_put_format(ds, "(sample=%.1f%%,", percentage); ds_put_cstr(ds, "actions("); nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]); len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]); format_odp_actions(ds, nla_acts, len); ds_put_format(ds, "))"); } static const char * slow_path_reason_to_string(uint32_t reason) { switch ((enum slow_path_reason) reason) { #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return STRING; SLOW_PATH_REASONS #undef SPR } return NULL; } const char * slow_path_reason_to_explanation(enum slow_path_reason reason) { switch (reason) { #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return EXPLANATION; SLOW_PATH_REASONS #undef SPR } return ""; } static int parse_flags(const char *s, const char *(*bit_to_string)(uint32_t), uint32_t *res) { uint32_t result = 0; int n = 0; if (s[n] != '(') { return -EINVAL; } n++; while (s[n] != ')') { unsigned long long int flags; uint32_t bit; int n0; if (ovs_scan(&s[n], "%lli%n", &flags, &n0)) { n += n0 + (s[n + n0] == ','); result |= flags; continue; } for (bit = 1; bit; bit <<= 1) { const char *name = bit_to_string(bit); size_t len; if (!name) { continue; } len = strlen(name); if (!strncmp(s + n, name, len) && (s[n + len] == ',' || s[n + len] == ')')) { result |= bit; n += len + (s[n + len] == ','); break; } } if (!bit) { return -EINVAL; } } n++; *res = result; return n; } static void format_odp_userspace_action(struct ds *ds, const struct nlattr *attr) { static const struct nl_policy ovs_userspace_policy[] = { [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 }, [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_UNSPEC, .optional = true }, }; struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)]; const struct nlattr *userdata_attr; if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) { ds_put_cstr(ds, "userspace(error)"); return; } ds_put_format(ds, "userspace(pid=%"PRIu32, nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID])); userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA]; if (userdata_attr) { const uint8_t *userdata = nl_attr_get(userdata_attr); size_t userdata_len = nl_attr_get_size(userdata_attr); bool userdata_unspec = true; union user_action_cookie cookie; if (userdata_len >= sizeof cookie.type && userdata_len <= sizeof cookie) { memset(&cookie, 0, sizeof cookie); memcpy(&cookie, userdata, userdata_len); userdata_unspec = false; if (userdata_len == sizeof cookie.sflow && cookie.type == USER_ACTION_COOKIE_SFLOW) { ds_put_format(ds, ",sFlow(" "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")", vlan_tci_to_vid(cookie.sflow.vlan_tci), vlan_tci_to_pcp(cookie.sflow.vlan_tci), cookie.sflow.output); } else if (userdata_len == sizeof cookie.slow_path && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) { ds_put_cstr(ds, ",slow_path("); format_flags(ds, slow_path_reason_to_string, cookie.slow_path.reason, ','); ds_put_format(ds, ")"); } else if (userdata_len == sizeof cookie.flow_sample && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) { ds_put_format(ds, ",flow_sample(probability=%"PRIu16 ",collector_set_id=%"PRIu32 ",obs_domain_id=%"PRIu32 ",obs_point_id=%"PRIu32")", cookie.flow_sample.probability, cookie.flow_sample.collector_set_id, cookie.flow_sample.obs_domain_id, cookie.flow_sample.obs_point_id); } else if (userdata_len >= sizeof cookie.ipfix && cookie.type == USER_ACTION_COOKIE_IPFIX) { ds_put_format(ds, ",ipfix"); } else { userdata_unspec = true; } } if (userdata_unspec) { size_t i; ds_put_format(ds, ",userdata("); for (i = 0; i < userdata_len; i++) { ds_put_format(ds, "%02x", userdata[i]); } ds_put_char(ds, ')'); } } ds_put_char(ds, ')'); } static void format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci) { ds_put_format(ds, "vid=%"PRIu16",pcp=%d", vlan_tci_to_vid(vlan_tci), vlan_tci_to_pcp(vlan_tci)); if (!(vlan_tci & htons(VLAN_CFI))) { ds_put_cstr(ds, ",cfi=0"); } } static void format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse) { ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d", mpls_lse_to_label(mpls_lse), mpls_lse_to_tc(mpls_lse), mpls_lse_to_ttl(mpls_lse), mpls_lse_to_bos(mpls_lse)); } static void format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key, const struct ovs_key_mpls *mpls_mask, int n) { if (n == 1) { ovs_be32 key = mpls_key->mpls_lse; if (mpls_mask == NULL) { format_mpls_lse(ds, key); } else { ovs_be32 mask = mpls_mask->mpls_lse; ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x", mpls_lse_to_label(key), mpls_lse_to_label(mask), mpls_lse_to_tc(key), mpls_lse_to_tc(mask), mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask), mpls_lse_to_bos(key), mpls_lse_to_bos(mask)); } } else { int i; for (i = 0; i < n; i++) { ds_put_format(ds, "lse%d=%#"PRIx32, i, ntohl(mpls_key[i].mpls_lse)); if (mpls_mask) { ds_put_format(ds, "/%#"PRIx32, ntohl(mpls_mask[i].mpls_lse)); } ds_put_char(ds, ','); } ds_chomp(ds, ','); } } static void format_odp_recirc_action(struct ds *ds, uint32_t recirc_id) { ds_put_format(ds, "recirc(%"PRIu32")", recirc_id); } static void format_odp_hash_action(struct ds *ds, const struct ovs_action_hash *hash_act) { ds_put_format(ds, "hash("); if (hash_act->hash_alg == OVS_HASH_ALG_L4) { ds_put_format(ds, "hash_l4(%"PRIu32")", hash_act->hash_basis); } else { ds_put_format(ds, "Unknown hash algorithm(%"PRIu32")", hash_act->hash_alg); } ds_put_format(ds, ")"); } static void format_odp_action(struct ds *ds, const struct nlattr *a) { int expected_len; enum ovs_action_attr type = nl_attr_type(a); const struct ovs_action_push_vlan *vlan; expected_len = odp_action_len(nl_attr_type(a)); if (expected_len != -2 && nl_attr_get_size(a) != expected_len) { ds_put_format(ds, "bad length %"PRIuSIZE", expected %d for: ", nl_attr_get_size(a), expected_len); format_generic_odp_action(ds, a); return; } switch (type) { case OVS_ACTION_ATTR_OUTPUT: ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a)); break; case OVS_ACTION_ATTR_USERSPACE: format_odp_userspace_action(ds, a); break; case OVS_ACTION_ATTR_RECIRC: format_odp_recirc_action(ds, nl_attr_get_u32(a)); break; case OVS_ACTION_ATTR_HASH: format_odp_hash_action(ds, nl_attr_get(a)); break; case OVS_ACTION_ATTR_SET: ds_put_cstr(ds, "set("); format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true); ds_put_cstr(ds, ")"); break; case OVS_ACTION_ATTR_PUSH_VLAN: vlan = nl_attr_get(a); ds_put_cstr(ds, "push_vlan("); if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) { ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid)); } format_vlan_tci(ds, vlan->vlan_tci); ds_put_char(ds, ')'); break; case OVS_ACTION_ATTR_POP_VLAN: ds_put_cstr(ds, "pop_vlan"); break; case OVS_ACTION_ATTR_PUSH_MPLS: { const struct ovs_action_push_mpls *mpls = nl_attr_get(a); ds_put_cstr(ds, "push_mpls("); format_mpls_lse(ds, mpls->mpls_lse); ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype)); break; } case OVS_ACTION_ATTR_POP_MPLS: { ovs_be16 ethertype = nl_attr_get_be16(a); ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype)); break; } case OVS_ACTION_ATTR_SAMPLE: format_odp_sample_action(ds, a); break; case OVS_ACTION_ATTR_UNSPEC: case __OVS_ACTION_ATTR_MAX: default: format_generic_odp_action(ds, a); break; } } void format_odp_actions(struct ds *ds, const struct nlattr *actions, size_t actions_len) { if (actions_len) { const struct nlattr *a; unsigned int left; NL_ATTR_FOR_EACH (a, left, actions, actions_len) { if (a != actions) { ds_put_char(ds, ','); } format_odp_action(ds, a); } if (left) { int i; if (left == actions_len) { ds_put_cstr(ds, ""); } ds_put_format(ds, ",***%u leftover bytes*** (", left); for (i = 0; i < left; i++) { ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]); } ds_put_char(ds, ')'); } } else { ds_put_cstr(ds, "drop"); } } static int parse_odp_action(const char *s, const struct simap *port_names, struct ofpbuf *actions) { { uint32_t port; int n; if (ovs_scan(s, "%"SCNi32"%n", &port, &n)) { nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port); return n; } } if (port_names) { int len = strcspn(s, delimiters); struct simap_node *node; node = simap_find_len(port_names, s, len); if (node) { nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data); return len; } } { uint32_t pid; uint32_t output; uint32_t probability; uint32_t collector_set_id; uint32_t obs_domain_id; uint32_t obs_point_id; int vid, pcp; int n = -1; if (ovs_scan(s, "userspace(pid=%"SCNi32")%n", &pid, &n)) { odp_put_userspace_action(pid, NULL, 0, actions); return n; } else if (ovs_scan(s, "userspace(pid=%"SCNi32",sFlow(vid=%i," "pcp=%i,output=%"SCNi32"))%n", &pid, &vid, &pcp, &output, &n)) { union user_action_cookie cookie; uint16_t tci; tci = vid | (pcp << VLAN_PCP_SHIFT); if (tci) { tci |= VLAN_CFI; } cookie.type = USER_ACTION_COOKIE_SFLOW; cookie.sflow.vlan_tci = htons(tci); cookie.sflow.output = output; odp_put_userspace_action(pid, &cookie, sizeof cookie.sflow, actions); return n; } else if (ovs_scan(s, "userspace(pid=%"SCNi32",slow_path%n", &pid, &n)) { union user_action_cookie cookie; int res; cookie.type = USER_ACTION_COOKIE_SLOW_PATH; cookie.slow_path.unused = 0; cookie.slow_path.reason = 0; res = parse_flags(&s[n], slow_path_reason_to_string, &cookie.slow_path.reason); if (res < 0) { return res; } n += res; if (s[n] != ')') { return -EINVAL; } n++; odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path, actions); return n; } else if (ovs_scan(s, "userspace(pid=%"SCNi32"," "flow_sample(probability=%"SCNi32"," "collector_set_id=%"SCNi32"," "obs_domain_id=%"SCNi32"," "obs_point_id=%"SCNi32"))%n", &pid, &probability, &collector_set_id, &obs_domain_id, &obs_point_id, &n)) { union user_action_cookie cookie; cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE; cookie.flow_sample.probability = probability; cookie.flow_sample.collector_set_id = collector_set_id; cookie.flow_sample.obs_domain_id = obs_domain_id; cookie.flow_sample.obs_point_id = obs_point_id; odp_put_userspace_action(pid, &cookie, sizeof cookie.flow_sample, actions); return n; } else if (ovs_scan(s, "userspace(pid=%"SCNi32",ipfix)%n", &pid, &n)) { union user_action_cookie cookie; cookie.type = USER_ACTION_COOKIE_IPFIX; odp_put_userspace_action(pid, &cookie, sizeof cookie.ipfix, actions); return n; } else if (ovs_scan(s, "userspace(pid=%"SCNi32",userdata(%n", &pid, &n)) { struct ofpbuf buf; char *end; ofpbuf_init(&buf, 16); end = ofpbuf_put_hex(&buf, &s[n], NULL); if (end[0] == ')' && end[1] == ')') { odp_put_userspace_action(pid, ofpbuf_data(&buf), ofpbuf_size(&buf), actions); ofpbuf_uninit(&buf); return (end + 2) - s; } } } if (!strncmp(s, "set(", 4)) { size_t start_ofs; int retval; start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET); retval = parse_odp_key_mask_attr(s + 4, port_names, actions, NULL); if (retval < 0) { return retval; } if (s[retval + 4] != ')') { return -EINVAL; } nl_msg_end_nested(actions, start_ofs); return retval + 5; } { struct ovs_action_push_vlan push; int tpid = ETH_TYPE_VLAN; int vid, pcp; int cfi = 1; int n = -1; if (ovs_scan(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n) || ovs_scan(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n", &vid, &pcp, &cfi, &n) || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n", &tpid, &vid, &pcp, &n) || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n", &tpid, &vid, &pcp, &cfi, &n)) { push.vlan_tpid = htons(tpid); push.vlan_tci = htons((vid << VLAN_VID_SHIFT) | (pcp << VLAN_PCP_SHIFT) | (cfi ? VLAN_CFI : 0)); nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN, &push, sizeof push); return n; } } if (!strncmp(s, "pop_vlan", 8)) { nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN); return 8; } { double percentage; int n = -1; if (ovs_scan(s, "sample(sample=%lf%%,actions(%n", &percentage, &n) && percentage >= 0. && percentage <= 100.0) { size_t sample_ofs, actions_ofs; double probability; probability = floor(UINT32_MAX * (percentage / 100.0) + .5); sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE); nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY, (probability <= 0 ? 0 : probability >= UINT32_MAX ? UINT32_MAX : probability)); actions_ofs = nl_msg_start_nested(actions, OVS_SAMPLE_ATTR_ACTIONS); for (;;) { int retval; n += strspn(s + n, delimiters); if (s[n] == ')') { break; } retval = parse_odp_action(s + n, port_names, actions); if (retval < 0) { return retval; } n += retval; } nl_msg_end_nested(actions, actions_ofs); nl_msg_end_nested(actions, sample_ofs); return s[n + 1] == ')' ? n + 2 : -EINVAL; } } return -EINVAL; } /* Parses the string representation of datapath actions, in the format output * by format_odp_action(). Returns 0 if successful, otherwise a positive errno * value. On success, the ODP actions are appended to 'actions' as a series of * Netlink attributes. On failure, no data is appended to 'actions'. Either * way, 'actions''s data might be reallocated. */ int odp_actions_from_string(const char *s, const struct simap *port_names, struct ofpbuf *actions) { size_t old_size; if (!strcasecmp(s, "drop")) { return 0; } old_size = ofpbuf_size(actions); for (;;) { int retval; s += strspn(s, delimiters); if (!*s) { return 0; } retval = parse_odp_action(s, port_names, actions); if (retval < 0 || !strchr(delimiters, s[retval])) { ofpbuf_set_size(actions, old_size); return -retval; } s += retval; } return 0; } /* Returns the correct length of the payload for a flow key attribute of the * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload * is variable length. */ static int odp_flow_key_attr_len(uint16_t type) { if (type > OVS_KEY_ATTR_MAX) { return -1; } switch ((enum ovs_key_attr) type) { case OVS_KEY_ATTR_ENCAP: return -2; case OVS_KEY_ATTR_PRIORITY: return 4; case OVS_KEY_ATTR_SKB_MARK: return 4; case OVS_KEY_ATTR_DP_HASH: return 4; case OVS_KEY_ATTR_RECIRC_ID: return 4; case OVS_KEY_ATTR_TUNNEL: return -2; case OVS_KEY_ATTR_IN_PORT: return 4; case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet); case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16); case OVS_KEY_ATTR_ETHERTYPE: return 2; case OVS_KEY_ATTR_MPLS: return -2; case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4); case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6); case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp); case OVS_KEY_ATTR_TCP_FLAGS: return 2; case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp); case OVS_KEY_ATTR_SCTP: return sizeof(struct ovs_key_sctp); case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp); case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6); case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp); case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd); case OVS_KEY_ATTR_UNSPEC: case __OVS_KEY_ATTR_MAX: return -1; } return -1; } static void format_generic_odp_key(const struct nlattr *a, struct ds *ds) { size_t len = nl_attr_get_size(a); if (len) { const uint8_t *unspec; unsigned int i; unspec = nl_attr_get(a); for (i = 0; i < len; i++) { if (i) { ds_put_char(ds, ' '); } ds_put_format(ds, "%02x", unspec[i]); } } } static const char * ovs_frag_type_to_string(enum ovs_frag_type type) { switch (type) { case OVS_FRAG_TYPE_NONE: return "no"; case OVS_FRAG_TYPE_FIRST: return "first"; case OVS_FRAG_TYPE_LATER: return "later"; case __OVS_FRAG_TYPE_MAX: default: return ""; } } static int tunnel_key_attr_len(int type) { switch (type) { case OVS_TUNNEL_KEY_ATTR_ID: return 8; case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4; case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4; case OVS_TUNNEL_KEY_ATTR_TOS: return 1; case OVS_TUNNEL_KEY_ATTR_TTL: return 1; case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0; case OVS_TUNNEL_KEY_ATTR_CSUM: return 0; case __OVS_TUNNEL_KEY_ATTR_MAX: return -1; } return -1; } enum odp_key_fitness odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun) { unsigned int left; const struct nlattr *a; bool ttl = false; bool unknown = false; NL_NESTED_FOR_EACH(a, left, attr) { uint16_t type = nl_attr_type(a); size_t len = nl_attr_get_size(a); int expected_len = tunnel_key_attr_len(type); if (len != expected_len && expected_len >= 0) { return ODP_FIT_ERROR; } switch (type) { case OVS_TUNNEL_KEY_ATTR_ID: tun->tun_id = nl_attr_get_be64(a); tun->flags |= FLOW_TNL_F_KEY; break; case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: tun->ip_src = nl_attr_get_be32(a); break; case OVS_TUNNEL_KEY_ATTR_IPV4_DST: tun->ip_dst = nl_attr_get_be32(a); break; case OVS_TUNNEL_KEY_ATTR_TOS: tun->ip_tos = nl_attr_get_u8(a); break; case OVS_TUNNEL_KEY_ATTR_TTL: tun->ip_ttl = nl_attr_get_u8(a); ttl = true; break; case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: tun->flags |= FLOW_TNL_F_DONT_FRAGMENT; break; case OVS_TUNNEL_KEY_ATTR_CSUM: tun->flags |= FLOW_TNL_F_CSUM; break; default: /* Allow this to show up as unexpected, if there are unknown * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */ unknown = true; break; } } if (!ttl) { return ODP_FIT_ERROR; } if (unknown) { return ODP_FIT_TOO_MUCH; } return ODP_FIT_PERFECT; } static void tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key) { size_t tun_key_ofs; tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL); /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */ if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) { nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id); } if (tun_key->ip_src) { nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src); } if (tun_key->ip_dst) { nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst); } if (tun_key->ip_tos) { nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos); } nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl); if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) { nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT); } if (tun_key->flags & FLOW_TNL_F_CSUM) { nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM); } nl_msg_end_nested(a, tun_key_ofs); } static bool odp_mask_attr_is_wildcard(const struct nlattr *ma) { return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma)); } static bool odp_mask_attr_is_exact(const struct nlattr *ma) { bool is_exact = false; enum ovs_key_attr attr = nl_attr_type(ma); if (attr == OVS_KEY_ATTR_TUNNEL) { /* XXX this is a hack for now. Should change * the exact match dection to per field * instead of per attribute. */ struct flow_tnl tun_mask; memset(&tun_mask, 0, sizeof tun_mask); odp_tun_key_from_attr(ma, &tun_mask); if (tun_mask.flags == (FLOW_TNL_F_KEY | FLOW_TNL_F_DONT_FRAGMENT | FLOW_TNL_F_CSUM)) { /* The flags are exact match, check the remaining fields. */ tun_mask.flags = 0xffff; is_exact = is_all_ones((uint8_t *)&tun_mask, offsetof(struct flow_tnl, ip_ttl)); } } else { is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma)); } return is_exact; } void odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no, char *port_name) { struct odp_portno_names *odp_portno_names; odp_portno_names = xmalloc(sizeof *odp_portno_names); odp_portno_names->port_no = port_no; odp_portno_names->name = xstrdup(port_name); hmap_insert(portno_names, &odp_portno_names->hmap_node, hash_odp_port(port_no)); } static char * odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no) { struct odp_portno_names *odp_portno_names; HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node, hash_odp_port(port_no), portno_names) { if (odp_portno_names->port_no == port_no) { return odp_portno_names->name; } } return NULL; } void odp_portno_names_destroy(struct hmap *portno_names) { struct odp_portno_names *odp_portno_names, *odp_portno_names_next; HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next, hmap_node, portno_names) { hmap_remove(portno_names, &odp_portno_names->hmap_node); free(odp_portno_names->name); free(odp_portno_names); } } static void format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma, const struct hmap *portno_names, struct ds *ds, bool verbose) { struct flow_tnl tun_key; enum ovs_key_attr attr = nl_attr_type(a); char namebuf[OVS_KEY_ATTR_BUFSIZE]; int expected_len; bool is_exact; is_exact = ma ? odp_mask_attr_is_exact(ma) : true; ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf)); { expected_len = odp_flow_key_attr_len(nl_attr_type(a)); if (expected_len != -2) { bool bad_key_len = nl_attr_get_size(a) != expected_len; bool bad_mask_len = ma && nl_attr_get_size(ma) != expected_len; if (bad_key_len || bad_mask_len) { if (bad_key_len) { ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(", nl_attr_get_size(a), expected_len); } format_generic_odp_key(a, ds); if (ma) { ds_put_char(ds, '/'); if (bad_mask_len) { ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(", nl_attr_get_size(ma), expected_len); } format_generic_odp_key(ma, ds); } ds_put_char(ds, ')'); return; } } } ds_put_char(ds, '('); switch (attr) { case OVS_KEY_ATTR_ENCAP: if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) { odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds, verbose); } else if (nl_attr_get_size(a)) { odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL, ds, verbose); } break; case OVS_KEY_ATTR_PRIORITY: case OVS_KEY_ATTR_SKB_MARK: case OVS_KEY_ATTR_DP_HASH: case OVS_KEY_ATTR_RECIRC_ID: ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a)); if (!is_exact) { ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma)); } break; case OVS_KEY_ATTR_TUNNEL: memset(&tun_key, 0, sizeof tun_key); if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) { ds_put_format(ds, "error"); } else if (!is_exact) { struct flow_tnl tun_mask; memset(&tun_mask, 0, sizeof tun_mask); odp_tun_key_from_attr(ma, &tun_mask); ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8 ",flags(", ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id), IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src), IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst), tun_key.ip_tos, tun_mask.ip_tos, tun_key.ip_ttl, tun_mask.ip_ttl); format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ','); /* XXX This code is correct, but enabling it would break the unit test. Disable it for now until the input parser is fixed. ds_put_char(ds, '/'); format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ','); */ ds_put_char(ds, ')'); } else { ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT"," "tos=0x%"PRIx8",ttl=%"PRIu8",flags(", ntohll(tun_key.tun_id), IP_ARGS(tun_key.ip_src), IP_ARGS(tun_key.ip_dst), tun_key.ip_tos, tun_key.ip_ttl); format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ','); ds_put_char(ds, ')'); } break; case OVS_KEY_ATTR_IN_PORT: if (portno_names && verbose && is_exact) { char *name = odp_portno_names_get(portno_names, u32_to_odp(nl_attr_get_u32(a))); if (name) { ds_put_format(ds, "%s", name); } else { ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a)); } } else { ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a)); if (!is_exact) { ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma)); } } break; case OVS_KEY_ATTR_ETHERNET: if (!is_exact) { const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma); const struct ovs_key_ethernet *eth_key = nl_attr_get(a); ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT, ETH_ADDR_ARGS(eth_key->eth_src), ETH_ADDR_ARGS(eth_mask->eth_src), ETH_ADDR_ARGS(eth_key->eth_dst), ETH_ADDR_ARGS(eth_mask->eth_dst)); } else { const struct ovs_key_ethernet *eth_key = nl_attr_get(a); ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT, ETH_ADDR_ARGS(eth_key->eth_src), ETH_ADDR_ARGS(eth_key->eth_dst)); } break; case OVS_KEY_ATTR_VLAN: { ovs_be16 vlan_tci = nl_attr_get_be16(a); if (!is_exact) { ovs_be16 mask = nl_attr_get_be16(ma); ds_put_format(ds, "vid=%"PRIu16"/0x%"PRIx16",pcp=%d/0x%x,cfi=%d/%d", vlan_tci_to_vid(vlan_tci), vlan_tci_to_vid(mask), vlan_tci_to_pcp(vlan_tci), vlan_tci_to_pcp(mask), vlan_tci_to_cfi(vlan_tci), vlan_tci_to_cfi(mask)); } else { format_vlan_tci(ds, vlan_tci); } } break; case OVS_KEY_ATTR_MPLS: { const struct ovs_key_mpls *mpls_key = nl_attr_get(a); const struct ovs_key_mpls *mpls_mask = NULL; size_t size = nl_attr_get_size(a); if (!size || size % sizeof *mpls_key) { ds_put_format(ds, "(bad key length %"PRIuSIZE")", nl_attr_get_size(a)); return; } if (!is_exact) { mpls_mask = nl_attr_get(ma); if (nl_attr_get_size(a) != nl_attr_get_size(ma)) { ds_put_format(ds, "(key length %"PRIuSIZE" != " "mask length %"PRIuSIZE")", nl_attr_get_size(a), nl_attr_get_size(ma)); return; } } format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key); break; } case OVS_KEY_ATTR_ETHERTYPE: ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a))); if (!is_exact) { ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma))); } break; case OVS_KEY_ATTR_IPV4: if (!is_exact) { const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a); const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma); ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8, IP_ARGS(ipv4_key->ipv4_src), IP_ARGS(ipv4_mask->ipv4_src), IP_ARGS(ipv4_key->ipv4_dst), IP_ARGS(ipv4_mask->ipv4_dst), ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto, ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos, ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl, ovs_frag_type_to_string(ipv4_key->ipv4_frag), ipv4_mask->ipv4_frag); } else { const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a); ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s", IP_ARGS(ipv4_key->ipv4_src), IP_ARGS(ipv4_key->ipv4_dst), ipv4_key->ipv4_proto, ipv4_key->ipv4_tos, ipv4_key->ipv4_ttl, ovs_frag_type_to_string(ipv4_key->ipv4_frag)); } break; case OVS_KEY_ATTR_IPV6: if (!is_exact) { const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask; char src_str[INET6_ADDRSTRLEN]; char dst_str[INET6_ADDRSTRLEN]; char src_mask[INET6_ADDRSTRLEN]; char dst_mask[INET6_ADDRSTRLEN]; ipv6_key = nl_attr_get(a); inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str); inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str); ipv6_mask = nl_attr_get(ma); inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask); inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask); ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8, src_str, src_mask, dst_str, dst_mask, ntohl(ipv6_key->ipv6_label), ntohl(ipv6_mask->ipv6_label), ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto, ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass, ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit, ovs_frag_type_to_string(ipv6_key->ipv6_frag), ipv6_mask->ipv6_frag); } else { const struct ovs_key_ipv6 *ipv6_key; char src_str[INET6_ADDRSTRLEN]; char dst_str[INET6_ADDRSTRLEN]; ipv6_key = nl_attr_get(a); inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str); inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str); ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s", src_str, dst_str, ntohl(ipv6_key->ipv6_label), ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass, ipv6_key->ipv6_hlimit, ovs_frag_type_to_string(ipv6_key->ipv6_frag)); } break; case OVS_KEY_ATTR_TCP: if (!is_exact) { const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma); const struct ovs_key_tcp *tcp_key = nl_attr_get(a); ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16 ",dst=%"PRIu16"/%#"PRIx16, ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src), ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst)); } else { const struct ovs_key_tcp *tcp_key = nl_attr_get(a); ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16, ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst)); } break; case OVS_KEY_ATTR_TCP_FLAGS: ds_put_format(ds, "0x%03"PRIx16, ntohs(nl_attr_get_be16(a))); if (!is_exact) { ds_put_format(ds, "/0x%03"PRIx16, ntohs(nl_attr_get_be16(ma))); } break; case OVS_KEY_ATTR_UDP: if (!is_exact) { const struct ovs_key_udp *udp_mask = nl_attr_get(ma); const struct ovs_key_udp *udp_key = nl_attr_get(a); ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16 ",dst=%"PRIu16"/%#"PRIx16, ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src), ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst)); } else { const struct ovs_key_udp *udp_key = nl_attr_get(a); ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16, ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst)); } break; case OVS_KEY_ATTR_SCTP: if (ma) { const struct ovs_key_sctp *sctp_mask = nl_attr_get(ma); const struct ovs_key_sctp *sctp_key = nl_attr_get(a); ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16 ",dst=%"PRIu16"/%#"PRIx16, ntohs(sctp_key->sctp_src), ntohs(sctp_mask->sctp_src), ntohs(sctp_key->sctp_dst), ntohs(sctp_mask->sctp_dst)); } else { const struct ovs_key_sctp *sctp_key = nl_attr_get(a); ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16, ntohs(sctp_key->sctp_src), ntohs(sctp_key->sctp_dst)); } break; case OVS_KEY_ATTR_ICMP: if (!is_exact) { const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma); const struct ovs_key_icmp *icmp_key = nl_attr_get(a); ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8, icmp_key->icmp_type, icmp_mask->icmp_type, icmp_key->icmp_code, icmp_mask->icmp_code); } else { const struct ovs_key_icmp *icmp_key = nl_attr_get(a); ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8, icmp_key->icmp_type, icmp_key->icmp_code); } break; case OVS_KEY_ATTR_ICMPV6: if (!is_exact) { const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma); const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a); ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8, icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type, icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code); } else { const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a); ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8, icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code); } break; case OVS_KEY_ATTR_ARP: if (!is_exact) { const struct ovs_key_arp *arp_mask = nl_attr_get(ma); const struct ovs_key_arp *arp_key = nl_attr_get(a); ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT ",op=%"PRIu16"/%#"PRIx16 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT, IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_mask->arp_sip), IP_ARGS(arp_key->arp_tip), IP_ARGS(arp_mask->arp_tip), ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op), ETH_ADDR_ARGS(arp_key->arp_sha), ETH_ADDR_ARGS(arp_mask->arp_sha), ETH_ADDR_ARGS(arp_key->arp_tha), ETH_ADDR_ARGS(arp_mask->arp_tha)); } else { const struct ovs_key_arp *arp_key = nl_attr_get(a); ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16"," "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT, IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip), ntohs(arp_key->arp_op), ETH_ADDR_ARGS(arp_key->arp_sha), ETH_ADDR_ARGS(arp_key->arp_tha)); } break; case OVS_KEY_ATTR_ND: { const struct ovs_key_nd *nd_key, *nd_mask = NULL; char target[INET6_ADDRSTRLEN]; nd_key = nl_attr_get(a); if (!is_exact) { nd_mask = nl_attr_get(ma); } inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target); ds_put_format(ds, "target=%s", target); if (!is_exact) { inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target); ds_put_format(ds, "/%s", target); } if (!eth_addr_is_zero(nd_key->nd_sll)) { ds_put_format(ds, ",sll="ETH_ADDR_FMT, ETH_ADDR_ARGS(nd_key->nd_sll)); if (!is_exact) { ds_put_format(ds, "/"ETH_ADDR_FMT, ETH_ADDR_ARGS(nd_mask->nd_sll)); } } if (!eth_addr_is_zero(nd_key->nd_tll)) { ds_put_format(ds, ",tll="ETH_ADDR_FMT, ETH_ADDR_ARGS(nd_key->nd_tll)); if (!is_exact) { ds_put_format(ds, "/"ETH_ADDR_FMT, ETH_ADDR_ARGS(nd_mask->nd_tll)); } } break; } case OVS_KEY_ATTR_UNSPEC: case __OVS_KEY_ATTR_MAX: default: format_generic_odp_key(a, ds); if (!is_exact) { ds_put_char(ds, '/'); format_generic_odp_key(ma, ds); } break; } ds_put_char(ds, ')'); } static struct nlattr * generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key) { const struct nlattr *a; unsigned int left; int type = nl_attr_type(key); int size = nl_attr_get_size(key); if (odp_flow_key_attr_len(type) >=0) { nl_msg_put_unspec_zero(ofp, type, size); } else { size_t nested_mask; nested_mask = nl_msg_start_nested(ofp, type); NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) { generate_all_wildcard_mask(ofp, nl_attr_get(a)); } nl_msg_end_nested(ofp, nested_mask); } return ofpbuf_base(ofp); } /* Appends to 'ds' a string representation of the 'key_len' bytes of * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is * non-null and 'verbose' is true, translates odp port number to its name. */ void odp_flow_format(const struct nlattr *key, size_t key_len, const struct nlattr *mask, size_t mask_len, const struct hmap *portno_names, struct ds *ds, bool verbose) { if (key_len) { const struct nlattr *a; unsigned int left; bool has_ethtype_key = false; const struct nlattr *ma = NULL; struct ofpbuf ofp; bool first_field = true; ofpbuf_init(&ofp, 100); NL_ATTR_FOR_EACH (a, left, key, key_len) { bool is_nested_attr; bool is_wildcard = false; int attr_type = nl_attr_type(a); if (attr_type == OVS_KEY_ATTR_ETHERTYPE) { has_ethtype_key = true; } is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2); if (mask && mask_len) { ma = nl_attr_find__(mask, mask_len, nl_attr_type(a)); is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true; } if (verbose || !is_wildcard || is_nested_attr) { if (is_wildcard && !ma) { ma = generate_all_wildcard_mask(&ofp, a); } if (!first_field) { ds_put_char(ds, ','); } format_odp_key_attr(a, ma, portno_names, ds, verbose); first_field = false; } ofpbuf_clear(&ofp); } ofpbuf_uninit(&ofp); if (left) { int i; if (left == key_len) { ds_put_cstr(ds, ""); } ds_put_format(ds, ",***%u leftover bytes*** (", left); for (i = 0; i < left; i++) { ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]); } ds_put_char(ds, ')'); } if (!has_ethtype_key) { ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE); if (ma) { ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")", ntohs(nl_attr_get_be16(ma))); } } } else { ds_put_cstr(ds, ""); } } /* Appends to 'ds' a string representation of the 'key_len' bytes of * OVS_KEY_ATTR_* attributes in 'key'. */ void odp_flow_key_format(const struct nlattr *key, size_t key_len, struct ds *ds) { odp_flow_format(key, key_len, NULL, 0, NULL, ds, true); } static void put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *key) { if (nd_sll) { memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN); } if (nd_tll) { memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN); } nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key); } static int put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *key) { struct ovs_key_nd nd_key; memset(&nd_key, 0, sizeof nd_key); if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) { return -EINVAL; } put_nd(&nd_key, nd_sll, nd_tll, key); return n; } static int put_nd_mask(int n, const char *nd_target_s, const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask) { struct ovs_key_nd nd_mask; memset(&nd_mask, 0xff, sizeof nd_mask); if (strlen(nd_target_s) != 0 && inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) { return -EINVAL; } put_nd(&nd_mask, nd_sll, nd_tll, mask); return n; } static bool ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type) { if (!strcasecmp(s, "no")) { *type = OVS_FRAG_TYPE_NONE; } else if (!strcasecmp(s, "first")) { *type = OVS_FRAG_TYPE_FIRST; } else if (!strcasecmp(s, "later")) { *type = OVS_FRAG_TYPE_LATER; } else { return false; } return true; } static ovs_be32 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos) { return (htonl((mpls_label << MPLS_LABEL_SHIFT) | (mpls_tc << MPLS_TC_SHIFT) | (mpls_ttl << MPLS_TTL_SHIFT) | (mpls_bos << MPLS_BOS_SHIFT))); } static int parse_odp_key_mask_attr(const char *s, const struct simap *port_names, struct ofpbuf *key, struct ofpbuf *mask) { { uint32_t priority; uint32_t priority_mask; int n = -1; if (mask && ovs_scan(s, "skb_priority(%"SCNi32"/%"SCNi32")%n", &priority, &priority_mask, &n)) { nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority); nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask); return n; } else if (ovs_scan(s, "skb_priority(%"SCNi32")%n", &priority, &n)) { nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority); if (mask) { nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX); } return n; } } { uint32_t mark; uint32_t mark_mask; int n = -1; if (mask && ovs_scan(s, "skb_mark(%"SCNi32"/%"SCNi32")%n", &mark, &mark_mask, &n)) { nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark); nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask); return n; } else if (ovs_scan(s, "skb_mark(%"SCNi32")%n", &mark, &n)) { nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark); if (mask) { nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX); } return n; } } { uint32_t recirc_id; int n = -1; if (ovs_scan(s, "recirc_id(%"SCNi32")%n", &recirc_id, &n)) { nl_msg_put_u32(key, OVS_KEY_ATTR_RECIRC_ID, recirc_id); nl_msg_put_u32(mask, OVS_KEY_ATTR_RECIRC_ID, UINT32_MAX); return n; } } { uint32_t dp_hash; uint32_t dp_hash_mask; int n = -1; if (mask && ovs_scan(s, "dp_hash(%"SCNi32"/%"SCNi32")%n", &dp_hash, &dp_hash_mask, &n)) { nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash); nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, dp_hash_mask); return n; } else if (ovs_scan(s, "dp_hash(%"SCNi32")%n", &dp_hash, &n)) { nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash); if (mask) { nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, UINT32_MAX); } return n; } } { uint64_t tun_id, tun_id_mask; struct flow_tnl tun_key, tun_key_mask; int n = -1; if (mask && ovs_scan(s, "tunnel(tun_id=%"SCNi64"/%"SCNi64"," "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT "/"IP_SCAN_FMT",tos=%"SCNi8"/%"SCNi8"," "ttl=%"SCNi8"/%"SCNi8",flags%n", &tun_id, &tun_id_mask, IP_SCAN_ARGS(&tun_key.ip_src), IP_SCAN_ARGS(&tun_key_mask.ip_src), IP_SCAN_ARGS(&tun_key.ip_dst), IP_SCAN_ARGS(&tun_key_mask.ip_dst), &tun_key.ip_tos, &tun_key_mask.ip_tos, &tun_key.ip_ttl, &tun_key_mask.ip_ttl, &n)) { int res; uint32_t flags; tun_key.tun_id = htonll(tun_id); tun_key_mask.tun_id = htonll(tun_id_mask); res = parse_flags(&s[n], flow_tun_flag_to_string, &flags); tun_key.flags = flags; tun_key_mask.flags = UINT16_MAX; if (res < 0) { return res; } n += res; if (s[n] != ')') { return -EINVAL; } n++; tun_key_to_attr(key, &tun_key); if (mask) { tun_key_to_attr(mask, &tun_key_mask); } return n; } else if (ovs_scan(s, "tunnel(tun_id=%"SCNi64"," "src="IP_SCAN_FMT",dst="IP_SCAN_FMT ",tos=%"SCNi8",ttl=%"SCNi8",flags%n", &tun_id, IP_SCAN_ARGS(&tun_key.ip_src), IP_SCAN_ARGS(&tun_key.ip_dst), &tun_key.ip_tos, &tun_key.ip_ttl, &n)) { int res; uint32_t flags; tun_key.tun_id = htonll(tun_id); res = parse_flags(&s[n], flow_tun_flag_to_string, &flags); tun_key.flags = flags; if (res < 0) { return res; } n += res; if (s[n] != ')') { return -EINVAL; } n++; tun_key_to_attr(key, &tun_key); if (mask) { memset(&tun_key, 0xff, sizeof tun_key); tun_key_to_attr(mask, &tun_key); } return n; } } { uint32_t in_port; uint32_t in_port_mask; int n = -1; if (mask && ovs_scan(s, "in_port(%"SCNi32"/%"SCNi32")%n", &in_port, &in_port_mask, &n)) { nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port); nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask); return n; } else if (ovs_scan(s, "in_port(%"SCNi32")%n", &in_port, &n)) { nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port); if (mask) { nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX); } return n; } } if (port_names && !strncmp(s, "in_port(", 8)) { const char *name; const struct simap_node *node; int name_len; name = s + 8; name_len = strcspn(name, ")"); node = simap_find_len(port_names, name, name_len); if (node) { nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data); if (mask) { nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX); } return 8 + name_len + 1; } } { struct ovs_key_ethernet eth_key; struct ovs_key_ethernet eth_key_mask; int n = -1; if (mask && ovs_scan(s, "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT"," "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n", ETH_ADDR_SCAN_ARGS(eth_key.eth_src), ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src), ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n)) { nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET, ð_key, sizeof eth_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET, ð_key_mask, sizeof eth_key_mask); return n; } else if (ovs_scan(s, "eth(src="ETH_ADDR_SCAN_FMT"," "dst="ETH_ADDR_SCAN_FMT")%n", ETH_ADDR_SCAN_ARGS(eth_key.eth_src), ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n)) { nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET, ð_key, sizeof eth_key); if (mask) { memset(ð_key, 0xff, sizeof eth_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET, ð_key, sizeof eth_key); } return n; } } { int vid, vid_mask; int pcp, pcp_mask; int cfi, cfi_mask; int n = -1; if (mask && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i)%n", &vid, &vid_mask, &pcp, &pcp_mask, &n)) { nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN, htons((vid << VLAN_VID_SHIFT) | (pcp << VLAN_PCP_SHIFT) | VLAN_CFI)); nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, htons((vid_mask << VLAN_VID_SHIFT) | (pcp_mask << VLAN_PCP_SHIFT) | (1 << VLAN_CFI_SHIFT))); return n; } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)) { nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN, htons((vid << VLAN_VID_SHIFT) | (pcp << VLAN_PCP_SHIFT) | VLAN_CFI)); if (mask) { nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX); } return n; } else if (mask && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i,cfi=%i/%i)%n", &vid, &vid_mask, &pcp, &pcp_mask, &cfi, &cfi_mask, &n)) { nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN, htons((vid << VLAN_VID_SHIFT) | (pcp << VLAN_PCP_SHIFT) | (cfi ? VLAN_CFI : 0))); nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, htons((vid_mask << VLAN_VID_SHIFT) | (pcp_mask << VLAN_PCP_SHIFT) | (cfi_mask << VLAN_CFI_SHIFT))); return n; } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i,cfi=%i)%n", &vid, &pcp, &cfi, &n)) { nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN, htons((vid << VLAN_VID_SHIFT) | (pcp << VLAN_PCP_SHIFT) | (cfi ? VLAN_CFI : 0))); if (mask) { nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX); } return n; } } { int eth_type; int eth_type_mask; int n = -1; if (mask && ovs_scan(s, "eth_type(%i/%i)%n", ð_type, ð_type_mask, &n)) { if (eth_type != 0) { nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type)); } nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask)); return n; } else if (ovs_scan(s, "eth_type(%i)%n", ð_type, &n)) { nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type)); if (mask) { nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX); } return n; } } { int label, tc, ttl, bos; int label_mask, tc_mask, ttl_mask, bos_mask; int n = -1; if (mask && ovs_scan(s, "mpls(label=%i/%i,tc=%i/%i," "ttl=%i/%i,bos=%i/%i)%n", &label, &label_mask, &tc, &tc_mask, &ttl, &ttl_mask, &bos, &bos_mask, &n)) { struct ovs_key_mpls *mpls, *mpls_mask; mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS, sizeof *mpls); mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos); mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS, sizeof *mpls_mask); mpls_mask->mpls_lse = mpls_lse_from_components( label_mask, tc_mask, ttl_mask, bos_mask); return n; } else if (ovs_scan(s, "mpls(label=%i,tc=%i,ttl=%i,bos=%i)%n", &label, &tc, &ttl, &bos, &n)) { struct ovs_key_mpls *mpls; mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS, sizeof *mpls); mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos); if (mask) { mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS, sizeof *mpls); mpls->mpls_lse = OVS_BE32_MAX; } return n; } } { struct ovs_key_ipv4 ipv4_key; struct ovs_key_ipv4 ipv4_mask; char frag[8]; enum ovs_frag_type ipv4_frag; int n = -1; if (mask && ovs_scan(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT"," "dst="IP_SCAN_FMT"/"IP_SCAN_FMT"," "proto=%"SCNi8"/%"SCNi8"," "tos=%"SCNi8"/%"SCNi8"," "ttl=%"SCNi8"/%"SCNi8"," "frag=%7[a-z]/%"SCNi8")%n", IP_SCAN_ARGS(&ipv4_key.ipv4_src), IP_SCAN_ARGS(&ipv4_mask.ipv4_src), IP_SCAN_ARGS(&ipv4_key.ipv4_dst), IP_SCAN_ARGS(&ipv4_mask.ipv4_dst), &ipv4_key.ipv4_proto, &ipv4_mask.ipv4_proto, &ipv4_key.ipv4_tos, &ipv4_mask.ipv4_tos, &ipv4_key.ipv4_ttl, &ipv4_mask.ipv4_ttl, frag, &ipv4_mask.ipv4_frag, &n) && ovs_frag_type_from_string(frag, &ipv4_frag)) { ipv4_key.ipv4_frag = ipv4_frag; nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4, &ipv4_key, sizeof ipv4_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4, &ipv4_mask, sizeof ipv4_mask); return n; } else if (ovs_scan(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT"," "proto=%"SCNi8",tos=%"SCNi8",ttl=%"SCNi8"," "frag=%7[a-z])%n", IP_SCAN_ARGS(&ipv4_key.ipv4_src), IP_SCAN_ARGS(&ipv4_key.ipv4_dst), &ipv4_key.ipv4_proto, &ipv4_key.ipv4_tos, &ipv4_key.ipv4_ttl, frag, &n) > 0 && ovs_frag_type_from_string(frag, &ipv4_frag)) { ipv4_key.ipv4_frag = ipv4_frag; nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4, &ipv4_key, sizeof ipv4_key); if (mask) { memset(&ipv4_key, 0xff, sizeof ipv4_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4, &ipv4_key, sizeof ipv4_key); } return n; } } { char ipv6_src_s[IPV6_SCAN_LEN + 1]; char ipv6_src_mask_s[IPV6_SCAN_LEN + 1]; char ipv6_dst_s[IPV6_SCAN_LEN + 1]; char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1]; int ipv6_label, ipv6_label_mask; int ipv6_proto, ipv6_proto_mask; int ipv6_tclass, ipv6_tclass_mask; int ipv6_hlimit, ipv6_hlimit_mask; char frag[8]; enum ovs_frag_type ipv6_frag; int ipv6_frag_mask; int n = -1; if (mask && ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst=" IPV6_SCAN_FMT"/"IPV6_SCAN_FMT"," "label=%i/%i,proto=%i/%i,tclass=%i/%i," "hlimit=%i/%i,frag=%7[a-z]/%i)%n", ipv6_src_s, ipv6_src_mask_s, ipv6_dst_s, ipv6_dst_mask_s, &ipv6_label, &ipv6_label_mask, &ipv6_proto, &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask, &ipv6_hlimit, &ipv6_hlimit_mask, frag, &ipv6_frag_mask, &n) && ovs_frag_type_from_string(frag, &ipv6_frag)) { struct ovs_key_ipv6 ipv6_key; struct ovs_key_ipv6 ipv6_mask; if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 || inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 || inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 || inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) { return -EINVAL; } ipv6_key.ipv6_label = htonl(ipv6_label); ipv6_key.ipv6_proto = ipv6_proto; ipv6_key.ipv6_tclass = ipv6_tclass; ipv6_key.ipv6_hlimit = ipv6_hlimit; ipv6_key.ipv6_frag = ipv6_frag; nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6, &ipv6_key, sizeof ipv6_key); ipv6_mask.ipv6_label = htonl(ipv6_label_mask); ipv6_mask.ipv6_proto = ipv6_proto_mask; ipv6_mask.ipv6_tclass = ipv6_tclass_mask; ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask; ipv6_mask.ipv6_frag = ipv6_frag_mask; nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6, &ipv6_mask, sizeof ipv6_mask); return n; } else if (ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT"," "label=%i,proto=%i,tclass=%i,hlimit=%i," "frag=%7[a-z])%n", ipv6_src_s, ipv6_dst_s, &ipv6_label, &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n) && ovs_frag_type_from_string(frag, &ipv6_frag)) { struct ovs_key_ipv6 ipv6_key; if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 || inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) { return -EINVAL; } ipv6_key.ipv6_label = htonl(ipv6_label); ipv6_key.ipv6_proto = ipv6_proto; ipv6_key.ipv6_tclass = ipv6_tclass; ipv6_key.ipv6_hlimit = ipv6_hlimit; ipv6_key.ipv6_frag = ipv6_frag; nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6, &ipv6_key, sizeof ipv6_key); if (mask) { memset(&ipv6_key, 0xff, sizeof ipv6_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6, &ipv6_key, sizeof ipv6_key); } return n; } } { int tcp_src; int tcp_dst; int tcp_src_mask; int tcp_dst_mask; int n = -1; if (mask && ovs_scan(s, "tcp(src=%i/%i,dst=%i/%i)%n", &tcp_src, &tcp_src_mask, &tcp_dst, &tcp_dst_mask, &n)) { struct ovs_key_tcp tcp_key; struct ovs_key_tcp tcp_mask; tcp_key.tcp_src = htons(tcp_src); tcp_key.tcp_dst = htons(tcp_dst); nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key); tcp_mask.tcp_src = htons(tcp_src_mask); tcp_mask.tcp_dst = htons(tcp_dst_mask); nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP, &tcp_mask, sizeof tcp_mask); return n; } else if (ovs_scan(s, "tcp(src=%i,dst=%i)%n", &tcp_src, &tcp_dst, &n)) { struct ovs_key_tcp tcp_key; tcp_key.tcp_src = htons(tcp_src); tcp_key.tcp_dst = htons(tcp_dst); nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key); if (mask) { memset(&tcp_key, 0xff, sizeof tcp_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key); } return n; } } { uint16_t tcp_flags, tcp_flags_mask; int n = -1; if (mask && ovs_scan(s, "tcp_flags(%"SCNi16"/%"SCNi16")%n", &tcp_flags, &tcp_flags_mask, &n) > 0 && n > 0) { nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags)); nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags_mask)); return n; } else if (ovs_scan(s, "tcp_flags(%"SCNi16")%n", &tcp_flags, &n)) { nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags)); if (mask) { nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS, htons(UINT16_MAX)); } return n; } } { int udp_src; int udp_dst; int udp_src_mask; int udp_dst_mask; int n = -1; if (mask && ovs_scan(s, "udp(src=%i/%i,dst=%i/%i)%n", &udp_src, &udp_src_mask, &udp_dst, &udp_dst_mask, &n)) { struct ovs_key_udp udp_key; struct ovs_key_udp udp_mask; udp_key.udp_src = htons(udp_src); udp_key.udp_dst = htons(udp_dst); nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key); udp_mask.udp_src = htons(udp_src_mask); udp_mask.udp_dst = htons(udp_dst_mask); nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_mask, sizeof udp_mask); return n; } if (ovs_scan(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n)) { struct ovs_key_udp udp_key; udp_key.udp_src = htons(udp_src); udp_key.udp_dst = htons(udp_dst); nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key); if (mask) { memset(&udp_key, 0xff, sizeof udp_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key); } return n; } } { int sctp_src; int sctp_dst; int sctp_src_mask; int sctp_dst_mask; int n = -1; if (mask && ovs_scan(s, "sctp(src=%i/%i,dst=%i/%i)%n", &sctp_src, &sctp_src_mask, &sctp_dst, &sctp_dst_mask, &n)) { struct ovs_key_sctp sctp_key; struct ovs_key_sctp sctp_mask; sctp_key.sctp_src = htons(sctp_src); sctp_key.sctp_dst = htons(sctp_dst); nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key); sctp_mask.sctp_src = htons(sctp_src_mask); sctp_mask.sctp_dst = htons(sctp_dst_mask); nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_mask, sizeof sctp_mask); return n; } if (ovs_scan(s, "sctp(src=%i,dst=%i)%n", &sctp_src, &sctp_dst, &n)) { struct ovs_key_sctp sctp_key; sctp_key.sctp_src = htons(sctp_src); sctp_key.sctp_dst = htons(sctp_dst); nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key); if (mask) { memset(&sctp_key, 0xff, sizeof sctp_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key); } return n; } } { struct ovs_key_icmp icmp_key; struct ovs_key_icmp icmp_mask; int n = -1; if (mask && ovs_scan(s, "icmp(type=%"SCNi8"/%"SCNi8"," "code=%"SCNi8"/%"SCNi8")%n", &icmp_key.icmp_type, &icmp_mask.icmp_type, &icmp_key.icmp_code, &icmp_mask.icmp_code, &n)) { nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP, &icmp_key, sizeof icmp_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_mask, sizeof icmp_mask); return n; } else if (ovs_scan(s, "icmp(type=%"SCNi8",code=%"SCNi8")%n", &icmp_key.icmp_type, &icmp_key.icmp_code, &n)) { nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP, &icmp_key, sizeof icmp_key); if (mask) { memset(&icmp_key, 0xff, sizeof icmp_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key, sizeof icmp_key); } return n; } } { struct ovs_key_icmpv6 icmpv6_key; struct ovs_key_icmpv6 icmpv6_mask; int n = -1; if (mask && ovs_scan(s, "icmpv6(type=%"SCNi8"/%"SCNi8"," "code=%"SCNi8"/%"SCNi8")%n", &icmpv6_key.icmpv6_type, &icmpv6_mask.icmpv6_type, &icmpv6_key.icmpv6_code, &icmpv6_mask.icmpv6_code, &n)) { nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6, &icmpv6_key, sizeof icmpv6_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask, sizeof icmpv6_mask); return n; } else if (ovs_scan(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n", &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code, &n)) { nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6, &icmpv6_key, sizeof icmpv6_key); if (mask) { memset(&icmpv6_key, 0xff, sizeof icmpv6_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key, sizeof icmpv6_key); } return n; } } { struct ovs_key_arp arp_key; struct ovs_key_arp arp_mask; uint16_t arp_op, arp_op_mask; int n = -1; if (mask && ovs_scan(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT"," "tip="IP_SCAN_FMT"/"IP_SCAN_FMT"," "op=%"SCNi16"/%"SCNi16"," "sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT"," "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n", IP_SCAN_ARGS(&arp_key.arp_sip), IP_SCAN_ARGS(&arp_mask.arp_sip), IP_SCAN_ARGS(&arp_key.arp_tip), IP_SCAN_ARGS(&arp_mask.arp_tip), &arp_op, &arp_op_mask, ETH_ADDR_SCAN_ARGS(arp_key.arp_sha), ETH_ADDR_SCAN_ARGS(arp_mask.arp_sha), ETH_ADDR_SCAN_ARGS(arp_key.arp_tha), ETH_ADDR_SCAN_ARGS(arp_mask.arp_tha), &n)) { arp_key.arp_op = htons(arp_op); nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key); arp_mask.arp_op = htons(arp_op_mask); nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP, &arp_mask, sizeof arp_mask); return n; } else if (ovs_scan(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT"," "op=%"SCNi16",sha="ETH_ADDR_SCAN_FMT"," "tha="ETH_ADDR_SCAN_FMT")%n", IP_SCAN_ARGS(&arp_key.arp_sip), IP_SCAN_ARGS(&arp_key.arp_tip), &arp_op, ETH_ADDR_SCAN_ARGS(arp_key.arp_sha), ETH_ADDR_SCAN_ARGS(arp_key.arp_tha), &n)) { arp_key.arp_op = htons(arp_op); nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key); if (mask) { memset(&arp_key, 0xff, sizeof arp_key); nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key); } return n; } } { char nd_target_s[IPV6_SCAN_LEN + 1]; char nd_target_mask_s[IPV6_SCAN_LEN + 1]; uint8_t nd_sll[ETH_ADDR_LEN]; uint8_t nd_sll_mask[ETH_ADDR_LEN]; uint8_t nd_tll[ETH_ADDR_LEN]; uint8_t nd_tll_mask[ETH_ADDR_LEN]; int n = -1; nd_target_mask_s[0] = 0; memset(nd_sll_mask, 0xff, sizeof nd_sll_mask); memset(nd_tll_mask, 0xff, sizeof nd_tll_mask); if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n", nd_target_s, nd_target_mask_s, &n)) { put_nd_key(n, nd_target_s, NULL, NULL, key); put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask); } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT")%n", nd_target_s, &n)) { put_nd_key(n, nd_target_s, NULL, NULL, key); if (mask) { put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask); } } else if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n", nd_target_s, nd_target_mask_s, ETH_ADDR_SCAN_ARGS(nd_sll), ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n)) { put_nd_key(n, nd_target_s, nd_sll, NULL, key); put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask); } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT"," "sll="ETH_ADDR_SCAN_FMT")%n", nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n)) { put_nd_key(n, nd_target_s, nd_sll, NULL, key); if (mask) { put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask); } } else if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n", nd_target_s, nd_target_mask_s, ETH_ADDR_SCAN_ARGS(nd_tll), ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n)) { put_nd_key(n, nd_target_s, NULL, nd_tll, key); put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask); } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT"," "tll="ETH_ADDR_SCAN_FMT")%n", nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n)) { put_nd_key(n, nd_target_s, NULL, nd_tll, key); if (mask) { put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask); } } else if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT"," "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n", nd_target_s, nd_target_mask_s, ETH_ADDR_SCAN_ARGS(nd_sll), ETH_ADDR_SCAN_ARGS(nd_sll_mask), ETH_ADDR_SCAN_ARGS(nd_tll), ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n)) { put_nd_key(n, nd_target_s, nd_sll, nd_tll, key); put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask); } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT"," "sll="ETH_ADDR_SCAN_FMT"," "tll="ETH_ADDR_SCAN_FMT")%n", nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), ETH_ADDR_SCAN_ARGS(nd_tll), &n)) { put_nd_key(n, nd_target_s, nd_sll, nd_tll, key); if (mask) { put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask); } } if (n != -1) return n; } if (!strncmp(s, "encap(", 6)) { const char *start = s; size_t encap, encap_mask = 0; encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP); if (mask) { encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP); } s += 6; for (;;) { int retval; s += strspn(s, ", \t\r\n"); if (!*s) { return -EINVAL; } else if (*s == ')') { break; } retval = parse_odp_key_mask_attr(s, port_names, key, mask); if (retval < 0) { return retval; } s += retval; } s++; nl_msg_end_nested(key, encap); if (mask) { nl_msg_end_nested(mask, encap_mask); } return s - start; } return -EINVAL; } /* Parses the string representation of a datapath flow key, in the * format output by odp_flow_key_format(). Returns 0 if successful, * otherwise a positive errno value. On success, the flow key is * appended to 'key' as a series of Netlink attributes. On failure, no * data is appended to 'key'. Either way, 'key''s data might be * reallocated. * * If 'port_names' is nonnull, it points to an simap that maps from a port name * to a port number. (Port names may be used instead of port numbers in * in_port.) * * On success, the attributes appended to 'key' are individually syntactically * valid, but they may not be valid as a sequence. 'key' might, for example, * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */ int odp_flow_from_string(const char *s, const struct simap *port_names, struct ofpbuf *key, struct ofpbuf *mask) { const size_t old_size = ofpbuf_size(key); for (;;) { int retval; s += strspn(s, delimiters); if (!*s) { return 0; } retval = parse_odp_key_mask_attr(s, port_names, key, mask); if (retval < 0) { ofpbuf_set_size(key, old_size); return -retval; } s += retval; } return 0; } static uint8_t ovs_to_odp_frag(uint8_t nw_frag) { return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST : OVS_FRAG_TYPE_LATER); } static uint8_t ovs_to_odp_frag_mask(uint8_t nw_frag_mask) { uint8_t frag_mask = ~(OVS_FRAG_TYPE_FIRST | OVS_FRAG_TYPE_LATER); frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_FIRST : 0; frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_LATER) ? OVS_FRAG_TYPE_LATER : 0; return frag_mask; } static void odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *flow, const struct flow *mask, odp_port_t odp_in_port, size_t max_mpls_depth, bool export_mask) { struct ovs_key_ethernet *eth_key; size_t encap; const struct flow *data = export_mask ? mask : flow; nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority); if (flow->tunnel.ip_dst || export_mask) { tun_key_to_attr(buf, &data->tunnel); } nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark); if (data->recirc_id || (mask && mask->recirc_id)) { nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID, data->recirc_id); } if (data->dp_hash || (mask && mask->dp_hash)) { nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH, data->dp_hash); } /* Add an ingress port attribute if this is a mask or 'odp_in_port' * is not the magical value "ODPP_NONE". */ if (export_mask || odp_in_port != ODPP_NONE) { nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port); } eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET, sizeof *eth_key); memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN); memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN); if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) { if (export_mask) { nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX); } else { nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN)); } nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci); encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP); if (flow->vlan_tci == htons(0)) { goto unencap; } } else { encap = 0; } if (ntohs(flow->dl_type) < ETH_TYPE_MIN) { /* For backwards compatibility with kernels that don't support * wildcarding, the following convention is used to encode the * OVS_KEY_ATTR_ETHERTYPE for key and mask: * * key mask matches * -------- -------- ------- * >0x5ff 0xffff Specified Ethernet II Ethertype. * >0x5ff 0 Any Ethernet II or non-Ethernet II frame. * 0xffff Any non-Ethernet II frame (except valid * 802.3 SNAP packet with valid eth_type). */ if (export_mask) { nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX); } goto unencap; } nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type); if (flow->dl_type == htons(ETH_TYPE_IP)) { struct ovs_key_ipv4 *ipv4_key; ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4, sizeof *ipv4_key); ipv4_key->ipv4_src = data->nw_src; ipv4_key->ipv4_dst = data->nw_dst; ipv4_key->ipv4_proto = data->nw_proto; ipv4_key->ipv4_tos = data->nw_tos; ipv4_key->ipv4_ttl = data->nw_ttl; ipv4_key->ipv4_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag) : ovs_to_odp_frag(data->nw_frag); } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) { struct ovs_key_ipv6 *ipv6_key; ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6, sizeof *ipv6_key); memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src); memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst); ipv6_key->ipv6_label = data->ipv6_label; ipv6_key->ipv6_proto = data->nw_proto; ipv6_key->ipv6_tclass = data->nw_tos; ipv6_key->ipv6_hlimit = data->nw_ttl; ipv6_key->ipv6_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag) : ovs_to_odp_frag(data->nw_frag); } else if (flow->dl_type == htons(ETH_TYPE_ARP) || flow->dl_type == htons(ETH_TYPE_RARP)) { struct ovs_key_arp *arp_key; arp_key = nl_msg_put_unspec_zero(buf, OVS_KEY_ATTR_ARP, sizeof *arp_key); arp_key->arp_sip = data->nw_src; arp_key->arp_tip = data->nw_dst; arp_key->arp_op = htons(data->nw_proto); memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN); memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN); } else if (eth_type_mpls(flow->dl_type)) { struct ovs_key_mpls *mpls_key; int i, n; n = flow_count_mpls_labels(flow, NULL); n = MIN(n, max_mpls_depth); mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS, n * sizeof *mpls_key); for (i = 0; i < n; i++) { mpls_key[i].mpls_lse = data->mpls_lse[i]; } } if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) { if (flow->nw_proto == IPPROTO_TCP) { struct ovs_key_tcp *tcp_key; tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP, sizeof *tcp_key); tcp_key->tcp_src = data->tp_src; tcp_key->tcp_dst = data->tp_dst; if (data->tcp_flags) { nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags); } } else if (flow->nw_proto == IPPROTO_UDP) { struct ovs_key_udp *udp_key; udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP, sizeof *udp_key); udp_key->udp_src = data->tp_src; udp_key->udp_dst = data->tp_dst; } else if (flow->nw_proto == IPPROTO_SCTP) { struct ovs_key_sctp *sctp_key; sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP, sizeof *sctp_key); sctp_key->sctp_src = data->tp_src; sctp_key->sctp_dst = data->tp_dst; } else if (flow->dl_type == htons(ETH_TYPE_IP) && flow->nw_proto == IPPROTO_ICMP) { struct ovs_key_icmp *icmp_key; icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP, sizeof *icmp_key); icmp_key->icmp_type = ntohs(data->tp_src); icmp_key->icmp_code = ntohs(data->tp_dst); } else if (flow->dl_type == htons(ETH_TYPE_IPV6) && flow->nw_proto == IPPROTO_ICMPV6) { struct ovs_key_icmpv6 *icmpv6_key; icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6, sizeof *icmpv6_key); icmpv6_key->icmpv6_type = ntohs(data->tp_src); icmpv6_key->icmpv6_code = ntohs(data->tp_dst); if (flow->tp_dst == htons(0) && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) || flow->tp_src == htons(ND_NEIGHBOR_ADVERT)) && (!export_mask || (data->tp_src == htons(0xffff) && data->tp_dst == htons(0xffff)))) { struct ovs_key_nd *nd_key; nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND, sizeof *nd_key); memcpy(nd_key->nd_target, &data->nd_target, sizeof nd_key->nd_target); memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN); memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN); } } } unencap: if (encap) { nl_msg_end_nested(buf, encap); } } /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'. * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port * number rather than a datapath port number). Instead, if 'odp_in_port' * is anything other than ODPP_NONE, it is included in 'buf' as the input * port. * * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be * capable of being expanded to allow for that much space. */ void odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow, const struct flow *mask, odp_port_t odp_in_port) { odp_flow_key_from_flow__(buf, flow, mask, odp_in_port, SIZE_MAX, false); } /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to * 'buf'. 'flow' is used as a template to determine how to interpret * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but * it doesn't indicate whether the other fields should be interpreted as * ARP, IPv4, IPv6, etc. * * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be * capable of being expanded to allow for that much space. */ void odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask, const struct flow *flow, uint32_t odp_in_port_mask, size_t max_mpls_depth) { odp_flow_key_from_flow__(buf, flow, mask, u32_to_odp(odp_in_port_mask), max_mpls_depth, true); } /* Generate ODP flow key from the given packet metadata */ void odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md) { nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority); if (md->tunnel.ip_dst) { tun_key_to_attr(buf, &md->tunnel); } nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark); /* Add an ingress port attribute if 'odp_in_port' is not the magical * value "ODPP_NONE". */ if (md->in_port.odp_port != ODPP_NONE) { nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port); } } /* Generate packet metadata from the given ODP flow key. */ void odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len, struct pkt_metadata *md) { const struct nlattr *nla; size_t left; uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY | 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL | 1u << OVS_KEY_ATTR_IN_PORT; *md = PKT_METADATA_INITIALIZER(ODPP_NONE); NL_ATTR_FOR_EACH (nla, left, key, key_len) { uint16_t type = nl_attr_type(nla); size_t len = nl_attr_get_size(nla); int expected_len = odp_flow_key_attr_len(type); if (len != expected_len && expected_len >= 0) { continue; } switch (type) { case OVS_KEY_ATTR_RECIRC_ID: md->recirc_id = nl_attr_get_u32(nla); wanted_attrs &= ~(1u << OVS_KEY_ATTR_RECIRC_ID); break; case OVS_KEY_ATTR_DP_HASH: md->dp_hash = nl_attr_get_u32(nla); wanted_attrs &= ~(1u << OVS_KEY_ATTR_DP_HASH); break; case OVS_KEY_ATTR_PRIORITY: md->skb_priority = nl_attr_get_u32(nla); wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY); break; case OVS_KEY_ATTR_SKB_MARK: md->pkt_mark = nl_attr_get_u32(nla); wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK); break; case OVS_KEY_ATTR_TUNNEL: { enum odp_key_fitness res; res = odp_tun_key_from_attr(nla, &md->tunnel); if (res == ODP_FIT_ERROR) { memset(&md->tunnel, 0, sizeof md->tunnel); } else if (res == ODP_FIT_PERFECT) { wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL); } break; } case OVS_KEY_ATTR_IN_PORT: md->in_port.odp_port = nl_attr_get_odp_port(nla); wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT); break; default: break; } if (!wanted_attrs) { return; /* Have everything. */ } } } uint32_t odp_flow_key_hash(const struct nlattr *key, size_t key_len) { BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t))); return hash_words(ALIGNED_CAST(const uint32_t *, key), key_len / sizeof(uint32_t), 0); } static void log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title, uint64_t attrs, int out_of_range_attr, const struct nlattr *key, size_t key_len) { struct ds s; int i; if (VLOG_DROP_DBG(rl)) { return; } ds_init(&s); for (i = 0; i < 64; i++) { if (attrs & (UINT64_C(1) << i)) { char namebuf[OVS_KEY_ATTR_BUFSIZE]; ds_put_format(&s, " %s", ovs_key_attr_to_string(i, namebuf, sizeof namebuf)); } } if (out_of_range_attr) { ds_put_format(&s, " %d (and possibly others)", out_of_range_attr); } ds_put_cstr(&s, ": "); odp_flow_key_format(key, key_len, &s); VLOG_DBG("%s:%s", title, ds_cstr(&s)); ds_destroy(&s); } static bool odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow) { static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); if (odp_frag > OVS_FRAG_TYPE_LATER) { VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag); return false; } if (odp_frag != OVS_FRAG_TYPE_NONE) { flow->nw_frag |= FLOW_NW_FRAG_ANY; if (odp_frag == OVS_FRAG_TYPE_LATER) { flow->nw_frag |= FLOW_NW_FRAG_LATER; } } return true; } static bool parse_flow_nlattrs(const struct nlattr *key, size_t key_len, const struct nlattr *attrs[], uint64_t *present_attrsp, int *out_of_range_attrp) { static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10); const struct nlattr *nla; uint64_t present_attrs; size_t left; BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs); present_attrs = 0; *out_of_range_attrp = 0; NL_ATTR_FOR_EACH (nla, left, key, key_len) { uint16_t type = nl_attr_type(nla); size_t len = nl_attr_get_size(nla); int expected_len = odp_flow_key_attr_len(type); if (len != expected_len && expected_len >= 0) { char namebuf[OVS_KEY_ATTR_BUFSIZE]; VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have " "length %d", ovs_key_attr_to_string(type, namebuf, sizeof namebuf), len, expected_len); return false; } if (type > OVS_KEY_ATTR_MAX) { *out_of_range_attrp = type; } else { if (present_attrs & (UINT64_C(1) << type)) { char namebuf[OVS_KEY_ATTR_BUFSIZE]; VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key", ovs_key_attr_to_string(type, namebuf, sizeof namebuf)); return false; } present_attrs |= UINT64_C(1) << type; attrs[type] = nla; } } if (left) { VLOG_ERR_RL(&rl, "trailing garbage in flow key"); return false; } *present_attrsp = present_attrs; return true; } static enum odp_key_fitness check_expectations(uint64_t present_attrs, int out_of_range_attr, uint64_t expected_attrs, const struct nlattr *key, size_t key_len) { uint64_t missing_attrs; uint64_t extra_attrs; missing_attrs = expected_attrs & ~present_attrs; if (missing_attrs) { static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10); log_odp_key_attributes(&rl, "expected but not present", missing_attrs, 0, key, key_len); return ODP_FIT_TOO_LITTLE; } extra_attrs = present_attrs & ~expected_attrs; if (extra_attrs || out_of_range_attr) { static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10); log_odp_key_attributes(&rl, "present but not expected", extra_attrs, out_of_range_attr, key, key_len); return ODP_FIT_TOO_MUCH; } return ODP_FIT_PERFECT; } static bool parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1], uint64_t present_attrs, uint64_t *expected_attrs, struct flow *flow, const struct flow *src_flow) { static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); bool is_mask = flow != src_flow; if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) { flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]); if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) { VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key", ntohs(flow->dl_type)); return false; } if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN && flow->dl_type != htons(0xffff)) { return false; } *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE; } else { if (!is_mask) { flow->dl_type = htons(FLOW_DL_TYPE_NONE); } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) { /* See comments in odp_flow_key_from_flow__(). */ VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame"); return false; } } return true; } static enum odp_key_fitness parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1], uint64_t present_attrs, int out_of_range_attr, uint64_t expected_attrs, struct flow *flow, const struct nlattr *key, size_t key_len, const struct flow *src_flow) { static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); bool is_mask = src_flow != flow; const void *check_start = NULL; size_t check_len = 0; enum ovs_key_attr expected_bit = 0xff; if (eth_type_mpls(src_flow->dl_type)) { size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]); const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]); int n = size / sizeof(ovs_be32); int i; if (!size || size % sizeof(ovs_be32)) { return ODP_FIT_ERROR; } if (!is_mask) { expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS); if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) { return ODP_FIT_TOO_LITTLE; } } else if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) { if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) { return ODP_FIT_ERROR; } expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS); } for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) { flow->mpls_lse[i] = mpls_lse[i]; } if (n > FLOW_MAX_MPLS_LABELS) { return ODP_FIT_TOO_MUCH; } if (!is_mask) { /* BOS may be set only in the innermost label. */ for (i = 0; i < n - 1; i++) { if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) { return ODP_FIT_ERROR; } } /* BOS must be set in the innermost label. */ if (n < FLOW_MAX_MPLS_LABELS && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) { return ODP_FIT_TOO_LITTLE; } } goto done; } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) { if (!is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) { const struct ovs_key_ipv4 *ipv4_key; ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]); flow->nw_src = ipv4_key->ipv4_src; flow->nw_dst = ipv4_key->ipv4_dst; flow->nw_proto = ipv4_key->ipv4_proto; flow->nw_tos = ipv4_key->ipv4_tos; flow->nw_ttl = ipv4_key->ipv4_ttl; if (is_mask) { flow->nw_frag = ipv4_key->ipv4_frag; check_start = ipv4_key; check_len = sizeof *ipv4_key; expected_bit = OVS_KEY_ATTR_IPV4; } else if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) { return ODP_FIT_ERROR; } } } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) { if (!is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) { const struct ovs_key_ipv6 *ipv6_key; ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]); memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src); memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst); flow->ipv6_label = ipv6_key->ipv6_label; flow->nw_proto = ipv6_key->ipv6_proto; flow->nw_tos = ipv6_key->ipv6_tclass; flow->nw_ttl = ipv6_key->ipv6_hlimit; if (is_mask) { flow->nw_frag = ipv6_key->ipv6_frag; check_start = ipv6_key; check_len = sizeof *ipv6_key; expected_bit = OVS_KEY_ATTR_IPV6; } else if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) { return ODP_FIT_ERROR; } } } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) || src_flow->dl_type == htons(ETH_TYPE_RARP)) { if (!is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) { const struct ovs_key_arp *arp_key; arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]); flow->nw_src = arp_key->arp_sip; flow->nw_dst = arp_key->arp_tip; if (!is_mask && (arp_key->arp_op & htons(0xff00))) { VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow " "key", ntohs(arp_key->arp_op)); return ODP_FIT_ERROR; } flow->nw_proto = ntohs(arp_key->arp_op); memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN); memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN); if (is_mask) { check_start = arp_key; check_len = sizeof *arp_key; expected_bit = OVS_KEY_ATTR_ARP; } } } else { goto done; } if (check_len > 0) { /* Happens only when 'is_mask'. */ if (!is_all_zeros(check_start, check_len) && flow->dl_type != htons(0xffff)) { return ODP_FIT_ERROR; } else { expected_attrs |= UINT64_C(1) << expected_bit; } } expected_bit = OVS_KEY_ATTR_UNSPEC; if (src_flow->nw_proto == IPPROTO_TCP && (src_flow->dl_type == htons(ETH_TYPE_IP) || src_flow->dl_type == htons(ETH_TYPE_IPV6)) && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) { if (!is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) { const struct ovs_key_tcp *tcp_key; tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]); flow->tp_src = tcp_key->tcp_src; flow->tp_dst = tcp_key->tcp_dst; expected_bit = OVS_KEY_ATTR_TCP; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS; flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]); } } else if (src_flow->nw_proto == IPPROTO_UDP && (src_flow->dl_type == htons(ETH_TYPE_IP) || src_flow->dl_type == htons(ETH_TYPE_IPV6)) && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) { if (!is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) { const struct ovs_key_udp *udp_key; udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]); flow->tp_src = udp_key->udp_src; flow->tp_dst = udp_key->udp_dst; expected_bit = OVS_KEY_ATTR_UDP; } } else if (src_flow->nw_proto == IPPROTO_SCTP && (src_flow->dl_type == htons(ETH_TYPE_IP) || src_flow->dl_type == htons(ETH_TYPE_IPV6)) && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) { if (!is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) { const struct ovs_key_sctp *sctp_key; sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]); flow->tp_src = sctp_key->sctp_src; flow->tp_dst = sctp_key->sctp_dst; expected_bit = OVS_KEY_ATTR_SCTP; } } else if (src_flow->nw_proto == IPPROTO_ICMP && src_flow->dl_type == htons(ETH_TYPE_IP) && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) { if (!is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) { const struct ovs_key_icmp *icmp_key; icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]); flow->tp_src = htons(icmp_key->icmp_type); flow->tp_dst = htons(icmp_key->icmp_code); expected_bit = OVS_KEY_ATTR_ICMP; } } else if (src_flow->nw_proto == IPPROTO_ICMPV6 && src_flow->dl_type == htons(ETH_TYPE_IPV6) && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) { if (!is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) { const struct ovs_key_icmpv6 *icmpv6_key; icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]); flow->tp_src = htons(icmpv6_key->icmpv6_type); flow->tp_dst = htons(icmpv6_key->icmpv6_code); expected_bit = OVS_KEY_ATTR_ICMPV6; if (src_flow->tp_dst == htons(0) && (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) || src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) { if (!is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) { const struct ovs_key_nd *nd_key; nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]); memcpy(&flow->nd_target, nd_key->nd_target, sizeof flow->nd_target); memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN); memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN); if (is_mask) { if (!is_all_zeros((const uint8_t *) nd_key, sizeof *nd_key) && (flow->tp_src != htons(0xffff) || flow->tp_dst != htons(0xffff))) { return ODP_FIT_ERROR; } else { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND; } } } } } } if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) { if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) { return ODP_FIT_ERROR; } else { expected_attrs |= UINT64_C(1) << expected_bit; } } done: return check_expectations(present_attrs, out_of_range_attr, expected_attrs, key, key_len); } /* Parse 802.1Q header then encapsulated L3 attributes. */ static enum odp_key_fitness parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1], uint64_t present_attrs, int out_of_range_attr, uint64_t expected_attrs, struct flow *flow, const struct nlattr *key, size_t key_len, const struct flow *src_flow) { static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); bool is_mask = src_flow != flow; const struct nlattr *encap = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP) ? attrs[OVS_KEY_ATTR_ENCAP] : NULL); enum odp_key_fitness encap_fitness; enum odp_key_fitness fitness; /* Calculate fitness of outer attributes. */ if (!is_mask) { expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) | (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)); } else { if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) { expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN); } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) { expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP); } } fitness = check_expectations(present_attrs, out_of_range_attr, expected_attrs, key, key_len); /* Set vlan_tci. * Remove the TPID from dl_type since it's not the real Ethertype. */ flow->dl_type = htons(0); flow->vlan_tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN) ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]) : htons(0)); if (!is_mask) { if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) { return ODP_FIT_TOO_LITTLE; } else if (flow->vlan_tci == htons(0)) { /* Corner case for a truncated 802.1Q header. */ if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) { return ODP_FIT_TOO_MUCH; } return fitness; } else if (!(flow->vlan_tci & htons(VLAN_CFI))) { VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero " "but CFI bit is not set", ntohs(flow->vlan_tci)); return ODP_FIT_ERROR; } } else { if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) { return fitness; } } /* Now parse the encapsulated attributes. */ if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap), attrs, &present_attrs, &out_of_range_attr)) { return ODP_FIT_ERROR; } expected_attrs = 0; if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) { return ODP_FIT_ERROR; } encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr, expected_attrs, flow, key, key_len, src_flow); /* The overall fitness is the worse of the outer and inner attributes. */ return MAX(fitness, encap_fitness); } static enum odp_key_fitness odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len, struct flow *flow, const struct flow *src_flow) { const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1]; uint64_t expected_attrs; uint64_t present_attrs; int out_of_range_attr; bool is_mask = src_flow != flow; memset(flow, 0, sizeof *flow); /* Parse attributes. */ if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs, &out_of_range_attr)) { return ODP_FIT_ERROR; } expected_attrs = 0; /* Metadata. */ if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID)) { flow->recirc_id = nl_attr_get_u32(attrs[OVS_KEY_ATTR_RECIRC_ID]); expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID; } else if (is_mask) { /* Always exact match recirc_id when datapath does not sepcify it. */ flow->recirc_id = UINT32_MAX; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH)) { flow->dp_hash = nl_attr_get_u32(attrs[OVS_KEY_ATTR_DP_HASH]); expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) { flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]); expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) { flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]); expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK; } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) { enum odp_key_fitness res; res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel); if (res == ODP_FIT_ERROR) { return ODP_FIT_ERROR; } else if (res == ODP_FIT_PERFECT) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL; } } if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) { flow->in_port.odp_port = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]); expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT; } else if (!is_mask) { flow->in_port.odp_port = ODPP_NONE; } /* Ethernet header. */ if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) { const struct ovs_key_ethernet *eth_key; eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]); memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN); memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN); if (is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET; } } if (!is_mask) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET; } /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */ if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) { return ODP_FIT_ERROR; } if (is_mask ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) { return parse_8021q_onward(attrs, present_attrs, out_of_range_attr, expected_attrs, flow, key, key_len, src_flow); } if (is_mask) { flow->vlan_tci = htons(0xffff); if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) { flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]); expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN); } } return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr, expected_attrs, flow, key, key_len, src_flow); } /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well * 'key' fits our expectations for what a flow key should contain. * * The 'in_port' will be the datapath's understanding of the port. The * caller will need to translate with odp_port_to_ofp_port() if the * OpenFlow port is needed. * * This function doesn't take the packet itself as an argument because none of * the currently understood OVS_KEY_ATTR_* attributes require it. Currently, * it is always possible to infer which additional attribute(s) should appear * by looking at the attributes for lower-level protocols, e.g. if the network * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it * must be absent. */ enum odp_key_fitness odp_flow_key_to_flow(const struct nlattr *key, size_t key_len, struct flow *flow) { return odp_flow_key_to_flow__(key, key_len, flow, flow); } /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask * structure in 'mask'. 'flow' must be a previously translated flow * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well * 'key' fits our expectations for what a flow key should contain. */ enum odp_key_fitness odp_flow_key_to_mask(const struct nlattr *key, size_t key_len, struct flow *mask, const struct flow *flow) { return odp_flow_key_to_flow__(key, key_len, mask, flow); } /* Returns 'fitness' as a string, for use in debug messages. */ const char * odp_key_fitness_to_string(enum odp_key_fitness fitness) { switch (fitness) { case ODP_FIT_PERFECT: return "OK"; case ODP_FIT_TOO_MUCH: return "too_much"; case ODP_FIT_TOO_LITTLE: return "too_little"; case ODP_FIT_ERROR: return "error"; default: return ""; } } /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute * whose contents are the 'userdata_size' bytes at 'userdata' and returns the * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is * null, then the return value is not meaningful.) */ size_t odp_put_userspace_action(uint32_t pid, const void *userdata, size_t userdata_size, struct ofpbuf *odp_actions) { size_t userdata_ofs; size_t offset; offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE); nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid); if (userdata) { userdata_ofs = ofpbuf_size(odp_actions) + NLA_HDRLEN; /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel * module before Linux 3.10 required the userdata to be exactly 8 bytes * long: * * - The kernel rejected shorter userdata with -ERANGE. * * - The kernel silently dropped userdata beyond the first 8 bytes. * * Thus, for maximum compatibility, always put at least 8 bytes. (We * separately disable features that required more than 8 bytes.) */ memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA, MAX(8, userdata_size)), userdata, userdata_size); } else { userdata_ofs = 0; } nl_msg_end_nested(odp_actions, offset); return userdata_ofs; } void odp_put_tunnel_action(const struct flow_tnl *tunnel, struct ofpbuf *odp_actions) { size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET); tun_key_to_attr(odp_actions, tunnel); nl_msg_end_nested(odp_actions, offset); } /* The commit_odp_actions() function and its helpers. */ static void commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type, const void *key, size_t key_size) { size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET); nl_msg_put_unspec(odp_actions, key_type, key, key_size); nl_msg_end_nested(odp_actions, offset); } void odp_put_pkt_mark_action(const uint32_t pkt_mark, struct ofpbuf *odp_actions) { commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &pkt_mark, sizeof(pkt_mark)); } /* If any of the flow key data that ODP actions can modify are different in * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to * 'odp_actions' that change the flow tunneling information in key from * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the * same way. In other words, operates the same as commit_odp_actions(), but * only on tunneling information. */ void commit_odp_tunnel_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions) { /* A valid IPV4_TUNNEL must have non-zero ip_dst. */ if (flow->tunnel.ip_dst) { if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) { return; } memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel); odp_put_tunnel_action(&base->tunnel, odp_actions); } } static void commit_set_ether_addr_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { struct ovs_key_ethernet eth_key; if (eth_addr_equals(base->dl_src, flow->dl_src) && eth_addr_equals(base->dl_dst, flow->dl_dst)) { return; } memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src); memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst); memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN); memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN); memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN); memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN); commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET, ð_key, sizeof(eth_key)); } static void pop_vlan(struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci); if (base->vlan_tci & htons(VLAN_CFI)) { nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN); base->vlan_tci = 0; } } static void commit_vlan_action(ovs_be16 vlan_tci, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { if (base->vlan_tci == vlan_tci) { return; } pop_vlan(base, odp_actions, wc); if (vlan_tci & htons(VLAN_CFI)) { struct ovs_action_push_vlan vlan; vlan.vlan_tpid = htons(ETH_TYPE_VLAN); vlan.vlan_tci = vlan_tci; nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN, &vlan, sizeof vlan); } base->vlan_tci = vlan_tci; } static void commit_mpls_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { int base_n = flow_count_mpls_labels(base, wc); int flow_n = flow_count_mpls_labels(flow, wc); int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n, wc); while (base_n > common_n) { if (base_n - 1 == common_n && flow_n > common_n) { /* If there is only one more LSE in base than there are common * between base and flow; and flow has at least one more LSE than * is common then the topmost LSE of base may be updated using * set */ struct ovs_key_mpls mpls_key; mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n]; commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS, &mpls_key, sizeof mpls_key); flow_set_mpls_lse(base, 0, mpls_key.mpls_lse); common_n++; } else { /* Otherwise, if there more LSEs in base than are common between * base and flow then pop the topmost one. */ ovs_be16 dl_type; bool popped; /* If all the LSEs are to be popped and this is not the outermost * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the * POP_MPLS action instead of flow->dl_type. * * This is because the POP_MPLS action requires its ethertype * argument to be an MPLS ethernet type but in this case * flow->dl_type will be a non-MPLS ethernet type. * * When the final POP_MPLS action occurs it use flow->dl_type and * the and the resulting packet will have the desired dl_type. */ if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) { dl_type = htons(ETH_TYPE_MPLS); } else { dl_type = flow->dl_type; } nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type); popped = flow_pop_mpls(base, base_n, flow->dl_type, wc); ovs_assert(popped); base_n--; } } /* If, after the above popping and setting, there are more LSEs in flow * than base then some LSEs need to be pushed. */ while (base_n < flow_n) { struct ovs_action_push_mpls *mpls; mpls = nl_msg_put_unspec_zero(odp_actions, OVS_ACTION_ATTR_PUSH_MPLS, sizeof *mpls); mpls->mpls_ethertype = flow->dl_type; mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1]; flow_push_mpls(base, base_n, mpls->mpls_ethertype, wc); flow_set_mpls_lse(base, 0, mpls->mpls_lse); base_n++; } } static void commit_set_ipv4_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { struct ovs_key_ipv4 ipv4_key; if (base->nw_src == flow->nw_src && base->nw_dst == flow->nw_dst && base->nw_tos == flow->nw_tos && base->nw_ttl == flow->nw_ttl && base->nw_frag == flow->nw_frag) { return; } memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src); memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst); memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos); memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl); memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto); memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag); ipv4_key.ipv4_src = base->nw_src = flow->nw_src; ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst; ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos; ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl; ipv4_key.ipv4_proto = base->nw_proto; ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag); commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4, &ipv4_key, sizeof(ipv4_key)); } static void commit_set_ipv6_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { struct ovs_key_ipv6 ipv6_key; if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) && ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) && base->ipv6_label == flow->ipv6_label && base->nw_tos == flow->nw_tos && base->nw_ttl == flow->nw_ttl && base->nw_frag == flow->nw_frag) { return; } memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src); memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst); memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label); memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos); memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl); memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto); memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag); base->ipv6_src = flow->ipv6_src; memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src)); base->ipv6_dst = flow->ipv6_dst; memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst)); ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label; ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos; ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl; ipv6_key.ipv6_proto = base->nw_proto; ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag); commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6, &ipv6_key, sizeof(ipv6_key)); } static enum slow_path_reason commit_set_arp_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { struct ovs_key_arp arp_key; if (base->nw_src == flow->nw_src && base->nw_dst == flow->nw_dst && base->nw_proto == flow->nw_proto && eth_addr_equals(base->arp_sha, flow->arp_sha) && eth_addr_equals(base->arp_tha, flow->arp_tha)) { return 0; } memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src); memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst); memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto); memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha); memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha); base->nw_src = flow->nw_src; base->nw_dst = flow->nw_dst; base->nw_proto = flow->nw_proto; memcpy(base->arp_sha, flow->arp_sha, ETH_ADDR_LEN); memcpy(base->arp_tha, flow->arp_tha, ETH_ADDR_LEN); arp_key.arp_sip = base->nw_src; arp_key.arp_tip = base->nw_dst; arp_key.arp_op = htons(base->nw_proto); memcpy(arp_key.arp_sha, flow->arp_sha, ETH_ADDR_LEN); memcpy(arp_key.arp_tha, flow->arp_tha, ETH_ADDR_LEN); commit_set_action(odp_actions, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key); return SLOW_ACTION; } static enum slow_path_reason commit_set_nw_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { /* Check if 'flow' really has an L3 header. */ if (!flow->nw_proto) { return 0; } switch (ntohs(base->dl_type)) { case ETH_TYPE_IP: commit_set_ipv4_action(flow, base, odp_actions, wc); break; case ETH_TYPE_IPV6: commit_set_ipv6_action(flow, base, odp_actions, wc); break; case ETH_TYPE_ARP: return commit_set_arp_action(flow, base, odp_actions, wc); } return 0; } static void commit_set_port_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) { return; } if (base->tp_src == flow->tp_src && base->tp_dst == flow->tp_dst) { return; } memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src); memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst); if (flow->nw_proto == IPPROTO_TCP) { struct ovs_key_tcp port_key; port_key.tcp_src = base->tp_src = flow->tp_src; port_key.tcp_dst = base->tp_dst = flow->tp_dst; commit_set_action(odp_actions, OVS_KEY_ATTR_TCP, &port_key, sizeof(port_key)); } else if (flow->nw_proto == IPPROTO_UDP) { struct ovs_key_udp port_key; port_key.udp_src = base->tp_src = flow->tp_src; port_key.udp_dst = base->tp_dst = flow->tp_dst; commit_set_action(odp_actions, OVS_KEY_ATTR_UDP, &port_key, sizeof(port_key)); } else if (flow->nw_proto == IPPROTO_SCTP) { struct ovs_key_sctp port_key; port_key.sctp_src = base->tp_src = flow->tp_src; port_key.sctp_dst = base->tp_dst = flow->tp_dst; commit_set_action(odp_actions, OVS_KEY_ATTR_SCTP, &port_key, sizeof(port_key)); } } static void commit_set_priority_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { if (base->skb_priority == flow->skb_priority) { return; } memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority); base->skb_priority = flow->skb_priority; commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY, &base->skb_priority, sizeof(base->skb_priority)); } static void commit_set_pkt_mark_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { if (base->pkt_mark == flow->pkt_mark) { return; } memset(&wc->masks.pkt_mark, 0xff, sizeof wc->masks.pkt_mark); base->pkt_mark = flow->pkt_mark; odp_put_pkt_mark_action(base->pkt_mark, odp_actions); } /* If any of the flow key data that ODP actions can modify are different in * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow * key from 'base' into 'flow', and then changes 'base' the same way. Does not * commit set_tunnel actions. Users should call commit_odp_tunnel_action() * in addition to this function if needed. Sets fields in 'wc' that are * used as part of the action. * * Returns a reason to force processing the flow's packets into the userspace * slow path, if there is one, otherwise 0. */ enum slow_path_reason commit_odp_actions(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions, struct flow_wildcards *wc) { enum slow_path_reason slow; commit_set_ether_addr_action(flow, base, odp_actions, wc); slow = commit_set_nw_action(flow, base, odp_actions, wc); commit_set_port_action(flow, base, odp_actions, wc); commit_mpls_action(flow, base, odp_actions, wc); commit_vlan_action(flow->vlan_tci, base, odp_actions, wc); commit_set_priority_action(flow, base, odp_actions, wc); commit_set_pkt_mark_action(flow, base, odp_actions, wc); return slow; }