X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fodp-util.c;h=030ad5e5a2f4ae5720180e717adc1af67d20b5d6;hb=ec9f40dce11c7e81bc41d42e3bbfaaf8287165ce;hp=6767b085558651c3f91c95ad0394a9f2b296c80e;hpb=48cecbdc39ccf29e7ea98a348cd2f4664272500b;p=sliver-openvswitch.git diff --git a/lib/odp-util.c b/lib/odp-util.c index 6767b0855..030ad5e5a 100644 --- a/lib/odp-util.c +++ b/lib/odp-util.c @@ -73,6 +73,8 @@ odp_action_len(uint16_t type) 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_SET: return -2; case OVS_ACTION_ATTR_SAMPLE: return -2; @@ -94,7 +96,6 @@ ovs_key_attr_to_string(enum ovs_key_attr attr) 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_TUN_ID: return "tun_id"; case OVS_KEY_ATTR_TUNNEL: return "tunnel"; case OVS_KEY_ATTR_IN_PORT: return "in_port"; case OVS_KEY_ATTR_ETHERNET: return "eth"; @@ -108,6 +109,7 @@ ovs_key_attr_to_string(enum ovs_key_attr attr) 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_MAX: default: @@ -168,28 +170,39 @@ format_odp_sample_action(struct ds *ds, const struct nlattr *attr) } static const char * -slow_path_reason_to_string(uint32_t data) +slow_path_reason_to_string(enum slow_path_reason reason) { - enum slow_path_reason bit = (enum slow_path_reason) data; - - switch (bit) { + switch (reason) { case SLOW_CFM: return "cfm"; case SLOW_LACP: return "lacp"; case SLOW_STP: return "stp"; - case SLOW_IN_BAND: - return "in_band"; + case SLOW_BFD: + return "bfd"; case SLOW_CONTROLLER: return "controller"; - case SLOW_MATCH: - return "match"; + case __SLOW_MAX: default: return NULL; } } +static enum slow_path_reason +string_to_slow_path_reason(const char *string) +{ + enum slow_path_reason i; + + for (i = 1; i < __SLOW_MAX; i++) { + if (!strcmp(string, slow_path_reason_to_string(i))) { + return i; + } + } + + return 0; +} + static int parse_flags(const char *s, const char *(*bit_to_string)(uint32_t), uint32_t *res) @@ -245,9 +258,11 @@ 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_U64, .optional = true }, + [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)"); @@ -257,32 +272,60 @@ format_odp_userspace_action(struct ds *ds, const struct nlattr *attr) ds_put_format(ds, "userspace(pid=%"PRIu32, nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID])); - if (a[OVS_USERSPACE_ATTR_USERDATA]) { - uint64_t userdata = nl_attr_get_u64(a[OVS_USERSPACE_ATTR_USERDATA]); - union user_action_cookie cookie; - - memcpy(&cookie, &userdata, sizeof cookie); + userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA]; - switch (cookie.type) { - case 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); - break; + 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; - case 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, ")"); - break; + 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) { + const char *reason; + reason = slow_path_reason_to_string(cookie.slow_path.reason); + reason = reason ? reason : ""; + ds_put_format(ds, ",slow_path(%s)", reason); + } 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; + } + } - case USER_ACTION_COOKIE_UNSPEC: - default: - ds_put_format(ds, ",userdata=0x%"PRIx64, userdata); - break; + 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, ')'); } } @@ -300,6 +343,16 @@ format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci) } } +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_odp_action(struct ds *ds, const struct nlattr *a) { @@ -339,6 +392,18 @@ format_odp_action(struct ds *ds, const struct nlattr *a) 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; @@ -419,12 +484,15 @@ parse_odp_action(const char *s, const struct simap *port_names, { unsigned long long int pid; unsigned long long int output; - char userdata_s[32]; + unsigned long long int probability; + unsigned long long int collector_set_id; + unsigned long long int obs_domain_id; + unsigned long long int obs_point_id; int vid, pcp; int n = -1; if (sscanf(s, "userspace(pid=%lli)%n", &pid, &n) > 0 && n > 0) { - odp_put_userspace_action(pid, NULL, actions); + odp_put_userspace_action(pid, NULL, 0, actions); return n; } else if (sscanf(s, "userspace(pid=%lli,sFlow(vid=%i," "pcp=%i,output=%lli))%n", @@ -440,40 +508,69 @@ parse_odp_action(const char *s, const struct simap *port_names, cookie.type = USER_ACTION_COOKIE_SFLOW; cookie.sflow.vlan_tci = htons(tci); cookie.sflow.output = output; - odp_put_userspace_action(pid, &cookie, actions); + odp_put_userspace_action(pid, &cookie, sizeof cookie.sflow, + actions); return n; - } else if (sscanf(s, "userspace(pid=%lli,slow_path%n", &pid, &n) > 0 + } else if (sscanf(s, "userspace(pid=%lli,slow_path(%n", &pid, &n) > 0 && n > 0) { union user_action_cookie cookie; - int res; + char reason[32]; + + if (s[n] == ')' && s[n + 1] == ')') { + reason[0] = '\0'; + n += 2; + } else if (sscanf(s + n, "%31[^)]))", reason) > 0) { + n += strlen(reason) + 2; + } else { + return -EINVAL; + } cookie.type = USER_ACTION_COOKIE_SLOW_PATH; cookie.slow_path.unused = 0; - cookie.slow_path.reason = 0; + cookie.slow_path.reason = string_to_slow_path_reason(reason); - res = parse_flags(&s[n], slow_path_reason_to_string, - &cookie.slow_path.reason); - if (res < 0) { - return res; - } - n += res; - if (s[n] != ')') { + if (reason[0] && !cookie.slow_path.reason) { return -EINVAL; } - n++; - odp_put_userspace_action(pid, &cookie, actions); + odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path, + actions); return n; - } else if (sscanf(s, "userspace(pid=%lli,userdata=" - "%31[x0123456789abcdefABCDEF])%n", &pid, userdata_s, - &n) > 0 && n > 0) { + } else if (sscanf(s, "userspace(pid=%lli,flow_sample(probability=%lli," + "collector_set_id=%lli,obs_domain_id=%lli," + "obs_point_id=%lli))%n", + &pid, &probability, &collector_set_id, + &obs_domain_id, &obs_point_id, &n) > 0 && n > 0) { union user_action_cookie cookie; - uint64_t userdata; - userdata = strtoull(userdata_s, NULL, 0); - memcpy(&cookie, &userdata, sizeof cookie); - odp_put_userspace_action(pid, &cookie, actions); + 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 (sscanf(s, "userspace(pid=%lli,ipfix)%n", &pid, &n) > 0 + && n > 0) { + 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 (sscanf(s, "userspace(pid=%lli,userdata(%n", &pid, &n) > 0 + && n > 0) { + 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, buf.data, buf.size, actions); + ofpbuf_uninit(&buf); + return (end + 2) - s; + } } } @@ -616,12 +713,12 @@ odp_flow_key_attr_len(uint16_t 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_TUN_ID: return 8; 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 sizeof(struct ovs_key_mpls); 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); @@ -820,10 +917,6 @@ format_odp_key_attr(const struct nlattr *a, struct ds *ds) ds_put_format(ds, "(%#"PRIx32")", nl_attr_get_u32(a)); break; - case OVS_KEY_ATTR_TUN_ID: - ds_put_format(ds, "(%#"PRIx64")", ntohll(nl_attr_get_be64(a))); - break; - case OVS_KEY_ATTR_TUNNEL: memset(&tun_key, 0, sizeof tun_key); if (tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) { @@ -859,6 +952,14 @@ format_odp_key_attr(const struct nlattr *a, struct ds *ds) ds_put_char(ds, ')'); break; + case OVS_KEY_ATTR_MPLS: { + const struct ovs_key_mpls *mpls_key = nl_attr_get(a); + ds_put_char(ds, '('); + format_mpls_lse(ds, mpls_key->mpls_lse); + ds_put_char(ds, ')'); + break; + } + case OVS_KEY_ATTR_ETHERTYPE: ds_put_format(ds, "(0x%04"PRIx16")", ntohs(nl_attr_get_be16(a))); @@ -1019,6 +1120,15 @@ ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type) 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_attr(const char *s, const struct simap *port_names, struct ofpbuf *key) @@ -1053,18 +1163,6 @@ parse_odp_key_attr(const char *s, const struct simap *port_names, } } - { - char tun_id_s[32]; - int n = -1; - - if (sscanf(s, "tun_id(%31[x0123456789abcdefABCDEF])%n", - tun_id_s, &n) > 0 && n > 0) { - uint64_t tun_id = strtoull(tun_id_s, NULL, 0); - nl_msg_put_be64(key, OVS_KEY_ATTR_TUN_ID, htonll(tun_id)); - return n; - } - } - { char tun_id_s[32]; int tos, ttl; @@ -1171,6 +1269,22 @@ parse_odp_key_attr(const char *s, const struct simap *port_names, } } + { + int label, tc, ttl, bos; + int n = -1; + + if (sscanf(s, "mpls(label=%"SCNi32",tc=%i,ttl=%i,bos=%i)%n", + &label, &tc, &ttl, &bos, &n) > 0 && + n > 0) { + 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); + return n; + } + } + { ovs_be32 ipv4_src; ovs_be32 ipv4_dst; @@ -1455,8 +1569,6 @@ odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow, if (flow->tunnel.ip_dst) { tun_key_to_attr(buf, &flow->tunnel); - } else if (flow->tunnel.tun_id != htonll(0)) { - nl_msg_put_be64(buf, OVS_KEY_ATTR_TUN_ID, flow->tunnel.tun_id); } if (flow->skb_mark) { @@ -1526,6 +1638,14 @@ odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow, memcpy(arp_key->arp_tha, flow->arp_tha, ETH_ADDR_LEN); } + if (flow->mpls_depth) { + struct ovs_key_mpls *mpls_key; + + mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS, + sizeof *mpls_key); + mpls_key->mpls_lse = flow->mpls_lse; + } + if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) { if (flow->nw_proto == IPPROTO_TCP) { struct ovs_key_tcp *tcp_key; @@ -1643,6 +1763,7 @@ parse_flow_nlattrs(const struct nlattr *key, size_t key_len, 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) { @@ -1657,7 +1778,7 @@ parse_flow_nlattrs(const struct nlattr *key, size_t key_len, return false; } - if (type >= CHAR_BIT * sizeof present_attrs) { + if (type > OVS_KEY_ATTR_MAX) { *out_of_range_attrp = type; } else { if (present_attrs & (UINT64_C(1) << type)) { @@ -1728,14 +1849,22 @@ parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1], } static enum odp_key_fitness -parse_l3_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) +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) { static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); - if (flow->dl_type == htons(ETH_TYPE_IP)) { + if (eth_type_mpls(flow->dl_type)) { + expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS); + + if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) { + return ODP_FIT_TOO_LITTLE; + } + flow->mpls_lse = nl_attr_get_be32(attrs[OVS_KEY_ATTR_MPLS]); + flow->mpls_depth++; + } else if (flow->dl_type == htons(ETH_TYPE_IP)) { 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; @@ -1787,7 +1916,8 @@ parse_l3_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1], } if (flow->nw_proto == IPPROTO_TCP - && is_ip_any(flow) + && (flow->dl_type == htons(ETH_TYPE_IP) || + flow->dl_type == htons(ETH_TYPE_IPV6)) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP; if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) { @@ -1798,7 +1928,8 @@ parse_l3_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1], flow->tp_dst = tcp_key->tcp_dst; } } else if (flow->nw_proto == IPPROTO_UDP - && is_ip_any(flow) + && (flow->dl_type == htons(ETH_TYPE_IP) || + flow->dl_type == htons(ETH_TYPE_IPV6)) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) { expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP; if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) { @@ -1866,7 +1997,7 @@ parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1], enum odp_key_fitness fitness; ovs_be16 tci; - /* Calulate fitness of outer attributes. */ + /* Calculate fitness of outer attributes. */ expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) | (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)); fitness = check_expectations(present_attrs, out_of_range_attr, @@ -1904,8 +2035,8 @@ parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1], if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow)) { return ODP_FIT_ERROR; } - encap_fitness = parse_l3_onward(attrs, present_attrs, out_of_range_attr, - expected_attrs, flow, key, key_len); + encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr, + expected_attrs, flow, key, key_len); /* The overall fitness is the worse of the outer and inner attributes. */ return MAX(fitness, encap_fitness); @@ -1955,11 +2086,6 @@ odp_flow_key_to_flow(const struct nlattr *key, size_t key_len, expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK; } - if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUN_ID)) { - flow->tunnel.tun_id = nl_attr_get_be64(attrs[OVS_KEY_ATTR_TUN_ID]); - expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUN_ID; - } - if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) { enum odp_key_fitness res; @@ -1997,8 +2123,8 @@ odp_flow_key_to_flow(const struct nlattr *key, size_t key_len, return parse_8021q_onward(attrs, present_attrs, out_of_range_attr, expected_attrs, flow, key, key_len); } - return parse_l3_onward(attrs, present_attrs, out_of_range_attr, - expected_attrs, flow, key, key_len); + return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr, + expected_attrs, flow, key, key_len); } /* Returns 'fitness' as a string, for use in debug messages. */ @@ -2020,25 +2146,39 @@ odp_key_fitness_to_string(enum odp_key_fitness fitness) } /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies - * Netlink PID 'pid'. If 'cookie' is nonnull, adds a userdata attribute whose - * contents contains 'cookie' and returns the offset within 'odp_actions' of - * the start of the cookie. (If 'cookie' is null, then the return value is not - * meaningful.) */ + * 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 union user_action_cookie *cookie, +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 (cookie) { + if (userdata) { + userdata_ofs = odp_actions->size + NLA_HDRLEN; nl_msg_put_unspec(odp_actions, OVS_USERSPACE_ATTR_USERDATA, - cookie, sizeof *cookie); + userdata, userdata_size); + } else { + userdata_ofs = 0; } nl_msg_end_nested(odp_actions, offset); - return cookie ? odp_actions->size - NLA_ALIGN(sizeof *cookie) : 0; + 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. */ @@ -2052,25 +2192,31 @@ commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type, nl_msg_end_nested(odp_actions, offset); } -static void -commit_set_tunnel_action(const struct flow *flow, struct flow *base, - struct ofpbuf *odp_actions) +void +odp_put_skb_mark_action(const uint32_t skb_mark, + struct ofpbuf *odp_actions) { - if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) { - return; - } - memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel); + commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &skb_mark, + sizeof(skb_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) { - size_t offset; - - offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET); - tun_key_to_attr(odp_actions, &base->tunnel); - nl_msg_end_nested(odp_actions, offset); - } else { - commit_set_action(odp_actions, OVS_KEY_ATTR_TUN_ID, - &base->tunnel.tun_id, sizeof base->tunnel.tun_id); + 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); } } @@ -2118,6 +2264,50 @@ commit_vlan_action(const struct flow *flow, struct flow *base, base->vlan_tci = flow->vlan_tci; } +static void +commit_mpls_action(const struct flow *flow, struct flow *base, + struct ofpbuf *odp_actions) +{ + if (flow->mpls_lse == base->mpls_lse && + flow->mpls_depth == base->mpls_depth) { + return; + } + + if (flow->mpls_depth < base->mpls_depth) { + if (base->mpls_depth - flow->mpls_depth > 1) { + static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10); + VLOG_WARN_RL(&rl, "Multiple mpls_pop actions reduced to " + " a single mpls_pop action"); + } + + nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, flow->dl_type); + } else if (flow->mpls_depth > base->mpls_depth) { + struct ovs_action_push_mpls *mpls; + + if (flow->mpls_depth - base->mpls_depth > 1) { + static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10); + VLOG_WARN_RL(&rl, "Multiple mpls_push actions reduced to " + " a single mpls_push action"); + } + + mpls = nl_msg_put_unspec_uninit(odp_actions, OVS_ACTION_ATTR_PUSH_MPLS, + sizeof *mpls); + memset(mpls, 0, sizeof *mpls); + mpls->mpls_ethertype = flow->dl_type; + mpls->mpls_lse = flow->mpls_lse; + } else { + struct ovs_key_mpls mpls_key; + + mpls_key.mpls_lse = flow->mpls_lse; + commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS, + &mpls_key, sizeof(mpls_key)); + } + + base->dl_type = flow->dl_type; + base->mpls_lse = flow->mpls_lse; + base->mpls_depth = flow->mpls_depth; +} + static void commit_set_ipv4_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions) @@ -2193,7 +2383,7 @@ static void commit_set_port_action(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions) { - if (!base->tp_src && !base->tp_dst) { + if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) { return; } @@ -2244,21 +2434,26 @@ commit_set_skb_mark_action(const struct flow *flow, struct flow *base, } base->skb_mark = flow->skb_mark; - commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, - &base->skb_mark, sizeof(base->skb_mark)); + odp_put_skb_mark_action(base->skb_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. */ + * 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. */ void commit_odp_actions(const struct flow *flow, struct flow *base, struct ofpbuf *odp_actions) { - commit_set_tunnel_action(flow, base, odp_actions); commit_set_ether_addr_action(flow, base, odp_actions); commit_vlan_action(flow, base, odp_actions); commit_set_nw_action(flow, base, odp_actions); commit_set_port_action(flow, base, odp_actions); + /* Committing MPLS actions should occur after committing nw and port + * actions. This is because committing MPLS actions may alter a packet so + * that it is no longer IP and thus nw and port actions are no longer valid. + */ + commit_mpls_action(flow, base, odp_actions); commit_set_priority_action(flow, base, odp_actions); commit_set_skb_mark_action(flow, base, odp_actions); }