X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fmeta-flow.c;h=f85f7a468c12c1afef6d719a6c8b2bf854fd275e;hb=945cad7fb1f37dcf68cab62ccf72970bcd12fa50;hp=f18d1a0b118da054ae43cd8967724c19f079b651;hpb=73c0ce349ba8d13a63a249a56aad0bec6e6caf26;p=openvswitch diff --git a/lib/meta-flow.c b/lib/meta-flow.c index f18d1a0b..f85f7a46 100644 --- a/lib/meta-flow.c +++ b/lib/meta-flow.c @@ -54,7 +54,16 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { MFP_NONE, true, NXM_NX_TUN_ID, "NXM_NX_TUN_ID", - 0, NULL, + NXM_NX_TUN_ID, "NXM_NX_TUN_ID", + }, { + MFF_METADATA, "metadata", NULL, + MF_FIELD_SIZES(be64), + MFM_FULLY, 0, + MFS_HEXADECIMAL, + MFP_NONE, + true, + OXM_OF_METADATA, "OXM_OF_METADATA", + OXM_OF_METADATA, "OXM_OF_METADATA", }, { MFF_IN_PORT, "in_port", NULL, MF_FIELD_SIZES(be16), @@ -74,9 +83,8 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { MFS_HEXADECIMAL, \ MFP_NONE, \ true, \ - NXM_NX_REG(IDX), \ - "NXM_NX_REG" #IDX, \ - 0, NULL, \ + NXM_NX_REG(IDX), "NXM_NX_REG" #IDX, \ + NXM_NX_REG(IDX), "NXM_NX_REG" #IDX, \ } #if FLOW_N_REGS > 0 REGISTER(0), @@ -147,7 +155,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { MFP_NONE, true, NXM_OF_VLAN_TCI, "NXM_OF_VLAN_TCI", - 0, NULL, + NXM_OF_VLAN_TCI, "NXM_OF_VLAN_TCI", }, { MFF_VLAN_VID, "dl_vlan", NULL, sizeof(ovs_be16), 12, @@ -155,7 +163,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { MFS_DECIMAL, MFP_NONE, true, - 0, NULL, + OXM_OF_VLAN_VID, "OXM_OF_VLAN_VID", OXM_OF_VLAN_VID, "OXM_OF_VLAN_VID", }, { MFF_VLAN_PCP, "dl_vlan_pcp", NULL, @@ -164,7 +172,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { MFS_DECIMAL, MFP_NONE, true, - 0, NULL, + OXM_OF_VLAN_PCP, "OXM_OF_VLAN_PCP", OXM_OF_VLAN_PCP, "OXM_OF_VLAN_PCP", }, @@ -175,7 +183,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { { MFF_IPV4_SRC, "ip_src", "nw_src", MF_FIELD_SIZES(be32), - MFM_CIDR, 0, + MFM_FULLY, 0, MFS_IPV4, MFP_IPV4, true, @@ -184,7 +192,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { }, { MFF_IPV4_DST, "ip_dst", "nw_dst", MF_FIELD_SIZES(be32), - MFM_CIDR, 0, + MFM_FULLY, 0, MFS_IPV4, MFP_IPV4, true, @@ -195,7 +203,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { { MFF_IPV6_SRC, "ipv6_src", NULL, MF_FIELD_SIZES(ipv6), - MFM_CIDR, 0, + MFM_FULLY, 0, MFS_IPV6, MFP_IPV6, true, @@ -204,7 +212,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { }, { MFF_IPV6_DST, "ipv6_dst", NULL, MF_FIELD_SIZES(ipv6), - MFM_CIDR, 0, + MFM_FULLY, 0, MFS_IPV6, MFP_IPV6, true, @@ -257,7 +265,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { MFP_IP_ANY, true, NXM_NX_IP_TTL, "NXM_NX_IP_TTL", - 0, NULL, + NXM_NX_IP_TTL, "NXM_NX_IP_TTL", }, { MFF_IP_FRAG, "ip_frag", NULL, 1, 2, @@ -266,7 +274,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { MFP_IP_ANY, false, NXM_NX_IP_FRAG, "NXM_NX_IP_FRAG", - 0, NULL, + NXM_NX_IP_FRAG, "NXM_NX_IP_FRAG", }, { @@ -281,7 +289,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { }, { MFF_ARP_SPA, "arp_spa", NULL, MF_FIELD_SIZES(be32), - MFM_CIDR, 0, + MFM_FULLY, 0, MFS_IPV4, MFP_ARP, false, @@ -290,7 +298,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { }, { MFF_ARP_TPA, "arp_tpa", NULL, MF_FIELD_SIZES(be32), - MFM_CIDR, 0, + MFM_FULLY, 0, MFS_IPV4, MFP_ARP, false, @@ -407,7 +415,7 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { { MFF_ND_TARGET, "nd_target", NULL, MF_FIELD_SIZES(ipv6), - MFM_CIDR, 0, + MFM_FULLY, 0, MFS_IPV6, MFP_ND, false, @@ -434,18 +442,22 @@ static const struct mf_field mf_fields[MFF_N_IDS] = { } }; +/* Maps an NXM or OXM header value to an mf_field. */ struct nxm_field { - struct hmap_node hmap_node; - uint32_t nxm_header; + struct hmap_node hmap_node; /* In 'all_fields' hmap. */ + uint32_t header; /* NXM or OXM header value. */ const struct mf_field *mf; }; -static struct hmap all_nxm_fields = HMAP_INITIALIZER(&all_nxm_fields); +/* Contains 'struct nxm_field's. */ +static struct hmap all_fields = HMAP_INITIALIZER(&all_fields); /* Rate limit for parse errors. These always indicate a bug in an OpenFlow * controller and so there's not much point in showing a lot of them. */ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); +const struct mf_field *mf_from_nxm_header__(uint32_t header); + /* Returns the field with the given 'id'. */ const struct mf_field * mf_from_id(enum mf_field_id id) @@ -476,56 +488,57 @@ mf_from_name(const char *name) } static void -add_nxm_field(uint32_t nxm_header, const struct mf_field *mf) +add_nxm_field(uint32_t header, const struct mf_field *mf) { struct nxm_field *f; f = xmalloc(sizeof *f); - hmap_insert(&all_nxm_fields, &f->hmap_node, hash_int(nxm_header, 0)); - f->nxm_header = nxm_header; + hmap_insert(&all_fields, &f->hmap_node, hash_int(header, 0)); + f->header = header; f->mf = mf; } static void -nxm_init(void) +nxm_init_add_field(const struct mf_field *mf, uint32_t header) { - const struct mf_field *mf; - - for (mf = mf_fields; mf < &mf_fields[MFF_N_IDS]; mf++) { - if (mf->nxm_header) { - add_nxm_field(mf->nxm_header, mf); - if (mf->maskable != MFM_NONE) { - add_nxm_field(NXM_MAKE_WILD_HEADER(mf->nxm_header), mf); - } + if (header) { + assert(!mf_from_nxm_header__(header)); + add_nxm_field(header, mf); + if (mf->maskable != MFM_NONE) { + add_nxm_field(NXM_MAKE_WILD_HEADER(header), mf); } } +} + +static void +nxm_init(void) +{ + const struct mf_field *mf; -#ifndef NDEBUG - /* Verify that the header values are unique. */ for (mf = mf_fields; mf < &mf_fields[MFF_N_IDS]; mf++) { - if (mf->nxm_header) { - assert(mf_from_nxm_header(mf->nxm_header) == mf); - if (mf->maskable != MFM_NONE) { - assert(mf_from_nxm_header(NXM_MAKE_WILD_HEADER(mf->nxm_header)) - == mf); - } + nxm_init_add_field(mf, mf->nxm_header); + if (mf->oxm_header != mf->nxm_header) { + nxm_init_add_field(mf, mf->oxm_header); } } -#endif } const struct mf_field * mf_from_nxm_header(uint32_t header) { - const struct nxm_field *f; - - if (hmap_is_empty(&all_nxm_fields)) { + if (hmap_is_empty(&all_fields)) { nxm_init(); } + return mf_from_nxm_header__(header); +} + +const struct mf_field * +mf_from_nxm_header__(uint32_t header) +{ + const struct nxm_field *f; - HMAP_FOR_EACH_IN_BUCKET (f, hmap_node, hash_int(header, 0), - &all_nxm_fields) { - if (f->nxm_header == header) { + HMAP_FOR_EACH_IN_BUCKET (f, hmap_node, hash_int(header, 0), &all_fields) { + if (f->header == header) { return f->mf; } } @@ -559,34 +572,10 @@ mf_is_all_wild(const struct mf_field *mf, const struct flow_wildcards *wc) case MFF_TUN_ID: return !wc->tun_id_mask; + case MFF_METADATA: + return !wc->metadata_mask; -#if FLOW_N_REGS > 0 - case MFF_REG0: -#endif -#if FLOW_N_REGS > 1 - case MFF_REG1: -#endif -#if FLOW_N_REGS > 2 - case MFF_REG2: -#endif -#if FLOW_N_REGS > 3 - case MFF_REG3: -#endif -#if FLOW_N_REGS > 4 - case MFF_REG4: -#endif -#if FLOW_N_REGS > 5 - case MFF_REG5: -#endif -#if FLOW_N_REGS > 6 - case MFF_REG6: -#endif -#if FLOW_N_REGS > 7 - case MFF_REG7: -#endif -#if FLOW_N_REGS > 8 -#error -#endif + CASE_MFF_REGS: return !wc->reg_masks[mf->id - MFF_REG0]; case MFF_ETH_SRC: @@ -669,34 +658,11 @@ mf_get_mask(const struct mf_field *mf, const struct flow_wildcards *wc, case MFF_TUN_ID: mask->be64 = wc->tun_id_mask; break; + case MFF_METADATA: + mask->be64 = wc->metadata_mask; + break; -#if FLOW_N_REGS > 0 - case MFF_REG0: -#endif -#if FLOW_N_REGS > 1 - case MFF_REG1: -#endif -#if FLOW_N_REGS > 2 - case MFF_REG2: -#endif -#if FLOW_N_REGS > 3 - case MFF_REG3: -#endif -#if FLOW_N_REGS > 4 - case MFF_REG4: -#endif -#if FLOW_N_REGS > 5 - case MFF_REG5: -#endif -#if FLOW_N_REGS > 6 - case MFF_REG6: -#endif -#if FLOW_N_REGS > 7 - case MFF_REG7: -#endif -#if FLOW_N_REGS > 8 -#error -#endif + CASE_MFF_REGS: mask->be32 = htonl(wc->reg_masks[mf->id - MFF_REG0]); break; @@ -783,11 +749,6 @@ mf_is_mask_valid(const struct mf_field *mf, const union mf_value *mask) case MFM_FULLY: return true; - - case MFM_CIDR: - return (mf->n_bytes == 4 - ? ip_is_cidr(mask->be32) - : ipv6_is_cidr(&mask->ipv6)); } NOT_REACHED(); @@ -873,34 +834,9 @@ mf_is_value_valid(const struct mf_field *mf, const union mf_value *value) { switch (mf->id) { case MFF_TUN_ID: + case MFF_METADATA: case MFF_IN_PORT: -#if FLOW_N_REGS > 0 - case MFF_REG0: -#endif -#if FLOW_N_REGS > 1 - case MFF_REG1: -#endif -#if FLOW_N_REGS > 2 - case MFF_REG2: -#endif -#if FLOW_N_REGS > 3 - case MFF_REG3: -#endif -#if FLOW_N_REGS > 4 - case MFF_REG4: -#endif -#if FLOW_N_REGS > 5 - case MFF_REG5: -#endif -#if FLOW_N_REGS > 6 - case MFF_REG6: -#endif -#if FLOW_N_REGS > 7 - case MFF_REG7: -#endif -#if FLOW_N_REGS > 8 -#error -#endif + CASE_MFF_REGS: case MFF_ETH_SRC: case MFF_ETH_DST: case MFF_ETH_TYPE: @@ -942,7 +878,7 @@ mf_is_value_valid(const struct mf_field *mf, const union mf_value *value) return !(value->be16 & htons(VLAN_CFI | VLAN_PCP_MASK)); case MFF_VLAN_PCP: - return !(value->u8 & ~7); + return !(value->u8 & ~(VLAN_PCP_MASK >> VLAN_PCP_SHIFT)); case MFF_IPV6_LABEL: return !(value->be32 & ~htonl(IPV6_LABEL_MASK)); @@ -963,38 +899,15 @@ mf_get_value(const struct mf_field *mf, const struct flow *flow, case MFF_TUN_ID: value->be64 = flow->tun_id; break; + case MFF_METADATA: + value->be64 = flow->metadata; + break; case MFF_IN_PORT: value->be16 = htons(flow->in_port); break; -#if FLOW_N_REGS > 0 - case MFF_REG0: -#endif -#if FLOW_N_REGS > 1 - case MFF_REG1: -#endif -#if FLOW_N_REGS > 2 - case MFF_REG2: -#endif -#if FLOW_N_REGS > 3 - case MFF_REG3: -#endif -#if FLOW_N_REGS > 4 - case MFF_REG4: -#endif -#if FLOW_N_REGS > 5 - case MFF_REG5: -#endif -#if FLOW_N_REGS > 6 - case MFF_REG6: -#endif -#if FLOW_N_REGS > 7 - case MFF_REG7: -#endif -#if FLOW_N_REGS > 8 -#error -#endif + CASE_MFF_REGS: value->be32 = htonl(flow->regs[mf->id - MFF_REG0]); break; @@ -1085,17 +998,11 @@ mf_get_value(const struct mf_field *mf, const struct flow *flow, break; case MFF_TCP_SRC: - value->be16 = flow->tp_src; - break; - - case MFF_TCP_DST: - value->be16 = flow->tp_dst; - break; - case MFF_UDP_SRC: value->be16 = flow->tp_src; break; + case MFF_TCP_DST: case MFF_UDP_DST: value->be16 = flow->tp_dst; break; @@ -1131,42 +1038,17 @@ mf_set_value(const struct mf_field *mf, case MFF_TUN_ID: cls_rule_set_tun_id(rule, value->be64); break; + case MFF_METADATA: + cls_rule_set_metadata(rule, value->be64); + break; case MFF_IN_PORT: cls_rule_set_in_port(rule, ntohs(value->be16)); break; -#if FLOW_N_REGS > 0 - case MFF_REG0: -#endif -#if FLOW_N_REGS > 1 - case MFF_REG1: -#endif -#if FLOW_N_REGS > 2 - case MFF_REG2: -#endif -#if FLOW_N_REGS > 3 - case MFF_REG3: -#endif -#if FLOW_N_REGS > 4 - case MFF_REG4: -#endif -#if FLOW_N_REGS > 5 - case MFF_REG5: -#endif -#if FLOW_N_REGS > 6 - case MFF_REG6: -#endif -#if FLOW_N_REGS > 7 - case MFF_REG7: -#endif -#if FLOW_N_REGS > 8 -#error -#endif -#if FLOW_N_REGS > 0 + CASE_MFF_REGS: cls_rule_set_reg(rule, mf->id - MFF_REG0, ntohl(value->be32)); break; -#endif case MFF_ETH_SRC: cls_rule_set_dl_src(rule, value->mac); @@ -1255,17 +1137,11 @@ mf_set_value(const struct mf_field *mf, break; case MFF_TCP_SRC: - cls_rule_set_tp_src(rule, value->be16); - break; - - case MFF_TCP_DST: - cls_rule_set_tp_dst(rule, value->be16); - break; - case MFF_UDP_SRC: cls_rule_set_tp_src(rule, value->be16); break; + case MFF_TCP_DST: case MFF_UDP_DST: cls_rule_set_tp_dst(rule, value->be16); break; @@ -1301,42 +1177,17 @@ mf_set_flow_value(const struct mf_field *mf, case MFF_TUN_ID: flow->tun_id = value->be64; break; + case MFF_METADATA: + flow->metadata = value->be64; + break; case MFF_IN_PORT: flow->in_port = ntohs(value->be16); break; -#if FLOW_N_REGS > 0 - case MFF_REG0: -#endif -#if FLOW_N_REGS > 1 - case MFF_REG1: -#endif -#if FLOW_N_REGS > 2 - case MFF_REG2: -#endif -#if FLOW_N_REGS > 3 - case MFF_REG3: -#endif -#if FLOW_N_REGS > 4 - case MFF_REG4: -#endif -#if FLOW_N_REGS > 5 - case MFF_REG5: -#endif -#if FLOW_N_REGS > 6 - case MFF_REG6: -#endif -#if FLOW_N_REGS > 7 - case MFF_REG7: -#endif -#if FLOW_N_REGS > 8 -#error -#endif -#if FLOW_N_REGS > 0 + CASE_MFF_REGS: flow->regs[mf->id - MFF_REG0] = ntohl(value->be32); break; -#endif case MFF_ETH_SRC: memcpy(flow->dl_src, value->mac, ETH_ADDR_LEN); @@ -1480,55 +1331,17 @@ mf_set_wild(const struct mf_field *mf, struct cls_rule *rule) case MFF_TUN_ID: cls_rule_set_tun_id_masked(rule, htonll(0), htonll(0)); break; + case MFF_METADATA: + cls_rule_set_metadata_masked(rule, htonll(0), htonll(0)); case MFF_IN_PORT: rule->wc.wildcards |= FWW_IN_PORT; rule->flow.in_port = 0; break; -#if FLOW_N_REGS > 0 - case MFF_REG0: - cls_rule_set_reg_masked(rule, 0, 0, 0); - break; -#endif -#if FLOW_N_REGS > 1 - case MFF_REG1: - cls_rule_set_reg_masked(rule, 1, 0, 0); - break; -#endif -#if FLOW_N_REGS > 2 - case MFF_REG2: - cls_rule_set_reg_masked(rule, 2, 0, 0); - break; -#endif -#if FLOW_N_REGS > 3 - case MFF_REG3: - cls_rule_set_reg_masked(rule, 3, 0, 0); - break; -#endif -#if FLOW_N_REGS > 4 - case MFF_REG4: - cls_rule_set_reg_masked(rule, 4, 0, 0); + CASE_MFF_REGS: + cls_rule_set_reg_masked(rule, mf->id - MFF_REG0, 0, 0); break; -#endif -#if FLOW_N_REGS > 5 - case MFF_REG5: - cls_rule_set_reg_masked(rule, 5, 0, 0); - break; -#endif -#if FLOW_N_REGS > 6 - case MFF_REG6: - cls_rule_set_reg_masked(rule, 6, 0, 0); - break; -#endif -#if FLOW_N_REGS > 7 - case MFF_REG7: - cls_rule_set_reg_masked(rule, 7, 0, 0); - break; -#endif -#if FLOW_N_REGS > 8 -#error -#endif case MFF_ETH_SRC: memset(rule->flow.dl_src, 0, ETH_ADDR_LEN); @@ -1699,34 +1512,11 @@ mf_set(const struct mf_field *mf, case MFF_TUN_ID: cls_rule_set_tun_id_masked(rule, value->be64, mask->be64); break; + case MFF_METADATA: + cls_rule_set_metadata_masked(rule, value->be64, mask->be64); + break; -#if FLOW_N_REGS > 0 - case MFF_REG0: -#endif -#if FLOW_N_REGS > 1 - case MFF_REG1: -#endif -#if FLOW_N_REGS > 2 - case MFF_REG2: -#endif -#if FLOW_N_REGS > 3 - case MFF_REG3: -#endif -#if FLOW_N_REGS > 4 - case MFF_REG4: -#endif -#if FLOW_N_REGS > 5 - case MFF_REG5: -#endif -#if FLOW_N_REGS > 6 - case MFF_REG6: -#endif -#if FLOW_N_REGS > 7 - case MFF_REG7: -#endif -#if FLOW_N_REGS > 8 -#error -#endif + CASE_MFF_REGS: cls_rule_set_reg_masked(rule, mf->id - MFF_REG0, ntohl(value->be32), ntohl(mask->be32)); break; @@ -1858,34 +1648,9 @@ mf_random_value(const struct mf_field *mf, union mf_value *value) switch (mf->id) { case MFF_TUN_ID: + case MFF_METADATA: case MFF_IN_PORT: -#if FLOW_N_REGS > 0 - case MFF_REG0: -#endif -#if FLOW_N_REGS > 1 - case MFF_REG1: -#endif -#if FLOW_N_REGS > 2 - case MFF_REG2: -#endif -#if FLOW_N_REGS > 3 - case MFF_REG3: -#endif -#if FLOW_N_REGS > 4 - case MFF_REG4: -#endif -#if FLOW_N_REGS > 5 - case MFF_REG5: -#endif -#if FLOW_N_REGS > 6 - case MFF_REG6: -#endif -#if FLOW_N_REGS > 7 - case MFF_REG7: -#endif -#if FLOW_N_REGS > 8 -#error -#endif + CASE_MFF_REGS: case MFF_ETH_SRC: case MFF_ETH_DST: case MFF_ETH_TYPE: @@ -2060,12 +1825,14 @@ mf_from_ipv6_string(const struct mf_field *mf, const char *s, netmask = strtok_r(NULL, "/", &save_ptr); if (netmask) { - int prefix = atoi(netmask); - if (prefix <= 0 || prefix > 128) { - free(str); - return xasprintf("%s: prefix bits not between 1 and 128", s); - } else { - *mask = ipv6_create_mask(prefix); + if (inet_pton(AF_INET6, netmask, mask) != 1) { + int prefix = atoi(netmask); + if (prefix <= 0 || prefix > 128) { + free(str); + return xasprintf("%s: prefix bits not between 1 and 128", s); + } else { + *mask = ipv6_create_mask(prefix); + } } } else { *mask = in6addr_exact; @@ -2296,13 +2063,7 @@ mf_format(const struct mf_field *mf, /* Makes subfield 'sf' within 'rule' exactly match the 'sf->n_bits' * least-significant bits in 'x'. - * - * See mf_set_subfield() for an example. - * - * The difference between this function and mf_set_subfield() is that the - * latter function can only handle subfields up to 64 bits wide, whereas this - * one handles the general case. On the other hand, mf_set_subfield() is - * arguably easier to use. */ + */ void mf_write_subfield(const struct mf_subfield *sf, const union mf_subvalue *x, struct cls_rule *rule) @@ -2316,80 +2077,6 @@ mf_write_subfield(const struct mf_subfield *sf, const union mf_subvalue *x, mf_set(field, &value, &mask, rule); } -/* Makes subfield 'sf' within 'rule' exactly match the 'sf->n_bits' - * least-significant bits of 'x'. - * - * Example: suppose that 'sf->field' is originally the following 2-byte field - * in 'rule': - * - * value == 0xe00a == 2#1110000000001010 - * mask == 0xfc3f == 2#1111110000111111 - * - * The call mf_set_subfield(sf, 0x55, 8, 7, rule), where sf->ofs == 8 and - * sf->n_bits == 7 would have the following effect (note that 0x55 is - * 2#1010101): - * - * value == 0xd50a == 2#1101010100001010 - * mask == 0xff3f == 2#1111111100111111 - * ^^^^^^^ affected bits - * - * The caller is responsible for ensuring that the result will be a valid - * wildcard pattern for 'sf->field'. The caller is responsible for ensuring - * that 'rule' meets 'sf->field''s prerequisites. */ -void -mf_set_subfield(const struct mf_subfield *sf, uint64_t x, - struct cls_rule *rule) -{ - const struct mf_field *field = sf->field; - unsigned int n_bits = sf->n_bits; - unsigned int ofs = sf->ofs; - - if (ofs == 0 && field->n_bytes * 8 == n_bits) { - union mf_value value; - int i; - - for (i = field->n_bytes - 1; i >= 0; i--) { - ((uint8_t *) &value)[i] = x; - x >>= 8; - } - mf_set_value(field, &value, rule); - } else { - union mf_value value, mask; - uint8_t *vp = (uint8_t *) &value; - uint8_t *mp = (uint8_t *) &mask; - - mf_get(field, rule, &value, &mask); - bitwise_put(x, vp, field->n_bytes, ofs, n_bits); - bitwise_put(UINT64_MAX, mp, field->n_bytes, ofs, n_bits); - mf_set(field, &value, &mask, rule); - } -} - -/* Similar to mf_set_subfield() but modifies only a flow, not a cls_rule. */ -void -mf_set_subfield_value(const struct mf_subfield *sf, uint64_t x, - struct flow *flow) -{ - const struct mf_field *field = sf->field; - unsigned int n_bits = sf->n_bits; - unsigned int ofs = sf->ofs; - union mf_value value; - - if (ofs == 0 && field->n_bytes * 8 == n_bits) { - int i; - - for (i = field->n_bytes - 1; i >= 0; i--) { - ((uint8_t *) &value)[i] = x; - x >>= 8; - } - mf_set_flow_value(field, &value, flow); - } else { - mf_get_value(field, flow, &value); - bitwise_put(x, &value, field->n_bytes, ofs, n_bits); - mf_set_flow_value(field, &value, flow); - } -} - /* Initializes 'x' to the value of 'sf' within 'flow'. 'sf' must be valid for * reading 'flow', e.g. as checked by mf_check_src(). */ void @@ -2462,6 +2149,11 @@ mf_parse_subfield_name(const char *name, int name_len, bool *wild) && mf->nxm_name[name_len] == '\0') { return mf; } + if (mf->oxm_name + && !strncmp(mf->oxm_name, name, name_len) + && mf->oxm_name[name_len] == '\0') { + return mf; + } } return NULL;