MFM_FULLY, 0,
MFS_HEXADECIMAL,
MFP_NONE,
- NXM_NX_TUN_ID,
+ true,
+ NXM_NX_TUN_ID, "NXM_NX_TUN_ID",
}, {
MFF_IN_PORT, "in_port", NULL,
MF_FIELD_SIZES(be16),
MFM_NONE, FWW_IN_PORT,
MFS_OFP_PORT,
MFP_NONE,
- NXM_OF_IN_PORT,
+ false,
+ NXM_OF_IN_PORT, "NXM_OF_IN_PORT",
},
#define REGISTER(IDX) \
MFM_FULLY, 0, \
MFS_HEXADECIMAL, \
MFP_NONE, \
+ true, \
NXM_NX_REG(IDX), \
+ "NXM_NX_REG" #IDX \
}
#if FLOW_N_REGS > 0
REGISTER(0),
MFM_NONE, FWW_DL_SRC,
MFS_ETHERNET,
MFP_NONE,
- NXM_OF_ETH_SRC,
+ true,
+ NXM_OF_ETH_SRC, "NXM_OF_ETH_SRC",
}, {
MFF_ETH_DST, "eth_dst", "dl_dst",
MF_FIELD_SIZES(mac),
MFM_MCAST, 0,
MFS_ETHERNET,
MFP_NONE,
- NXM_OF_ETH_DST,
+ true,
+ NXM_OF_ETH_DST, "NXM_OF_ETH_DST",
}, {
MFF_ETH_TYPE, "eth_type", "dl_type",
MF_FIELD_SIZES(be16),
MFM_NONE, FWW_DL_TYPE,
MFS_HEXADECIMAL,
MFP_NONE,
- NXM_OF_ETH_TYPE,
+ false,
+ NXM_OF_ETH_TYPE, "NXM_OF_ETH_TYPE",
},
{
MFM_FULLY, 0,
MFS_HEXADECIMAL,
MFP_NONE,
- NXM_OF_VLAN_TCI,
+ true,
+ NXM_OF_VLAN_TCI, "NXM_OF_VLAN_TCI",
}, {
MFF_VLAN_VID, "dl_vlan", NULL,
sizeof(ovs_be16), 12,
MFM_NONE, 0,
MFS_DECIMAL,
MFP_NONE,
- 0,
+ true,
+ 0, NULL
}, {
MFF_VLAN_PCP, "dl_vlan_pcp", NULL,
1, 3,
MFM_NONE, 0,
MFS_DECIMAL,
MFP_NONE,
- 0,
+ true,
+ 0, NULL
},
/* ## -- ## */
MFM_CIDR, 0,
MFS_IPV4,
MFP_IPV4,
- NXM_OF_IP_SRC,
+ true,
+ NXM_OF_IP_SRC, "NXM_OF_IP_SRC",
}, {
MFF_IPV4_DST, "ip_dst", "nw_dst",
MF_FIELD_SIZES(be32),
MFM_CIDR, 0,
MFS_IPV4,
MFP_IPV4,
- NXM_OF_IP_DST,
+ true,
+ NXM_OF_IP_DST, "NXM_OF_IP_DST",
},
{
MFM_CIDR, 0,
MFS_IPV6,
MFP_IPV6,
- NXM_NX_IPV6_SRC,
+ true,
+ NXM_NX_IPV6_SRC, "NXM_NX_IPV6_SRC",
}, {
MFF_IPV6_DST, "ipv6_dst", NULL,
MF_FIELD_SIZES(ipv6),
MFM_CIDR, 0,
MFS_IPV6,
MFP_IPV6,
- NXM_NX_IPV6_DST,
+ true,
+ NXM_NX_IPV6_DST, "NXM_NX_IPV6_DST",
},
{
MFF_IPV6_LABEL, "ipv6_label", NULL,
MFM_NONE, FWW_IPV6_LABEL,
MFS_HEXADECIMAL,
MFP_IPV6,
- NXM_NX_IPV6_LABEL,
+ false,
+ NXM_NX_IPV6_LABEL, "NXM_NX_IPV6_LABEL",
},
{
MFM_NONE, FWW_NW_PROTO,
MFS_DECIMAL,
MFP_IP_ANY,
- NXM_OF_IP_PROTO,
+ false,
+ NXM_OF_IP_PROTO, "NXM_OF_IP_PROTO",
}, {
MFF_IP_DSCP, "nw_tos", NULL,
MF_FIELD_SIZES(u8),
MFM_NONE, FWW_NW_DSCP,
MFS_DECIMAL,
MFP_IP_ANY,
- NXM_OF_IP_TOS,
+ true,
+ NXM_OF_IP_TOS, "NXM_OF_IP_TOS"
}, {
MFF_IP_ECN, "nw_ecn", NULL,
1, 2,
MFM_NONE, FWW_NW_ECN,
MFS_DECIMAL,
MFP_IP_ANY,
- NXM_NX_IP_ECN,
+ true,
+ NXM_NX_IP_ECN, "NXM_NX_IP_ECN",
}, {
MFF_IP_TTL, "nw_ttl", NULL,
MF_FIELD_SIZES(u8),
MFM_NONE, FWW_NW_TTL,
MFS_DECIMAL,
MFP_IP_ANY,
- NXM_NX_IP_TTL,
+ true,
+ NXM_NX_IP_TTL, "NXM_NX_IP_TTL"
}, {
MFF_IP_FRAG, "ip_frag", NULL,
1, 2,
MFM_FULLY, 0,
MFS_FRAG,
MFP_IP_ANY,
- NXM_NX_IP_FRAG,
+ false,
+ NXM_NX_IP_FRAG, "NXM_NX_IP_FRAG"
},
{
MFM_NONE, FWW_NW_PROTO,
MFS_DECIMAL,
MFP_ARP,
- NXM_OF_ARP_OP,
+ false,
+ NXM_OF_ARP_OP, "NXM_OF_ARP_OP",
}, {
MFF_ARP_SPA, "arp_spa", NULL,
MF_FIELD_SIZES(be32),
MFM_CIDR, 0,
MFS_IPV4,
MFP_ARP,
- NXM_OF_ARP_SPA,
+ false,
+ NXM_OF_ARP_SPA, "NXM_OF_ARP_SPA",
}, {
MFF_ARP_TPA, "arp_tpa", NULL,
MF_FIELD_SIZES(be32),
MFM_CIDR, 0,
MFS_IPV4,
MFP_ARP,
- NXM_OF_ARP_TPA,
+ false,
+ NXM_OF_ARP_TPA, "NXM_OF_ARP_TPA",
}, {
MFF_ARP_SHA, "arp_sha", NULL,
MF_FIELD_SIZES(mac),
MFM_NONE, FWW_ARP_SHA,
MFS_ETHERNET,
MFP_ARP,
- NXM_NX_ARP_SHA,
+ false,
+ NXM_NX_ARP_SHA, "NXM_NX_ARP_SHA",
}, {
MFF_ARP_THA, "arp_tha", NULL,
MF_FIELD_SIZES(mac),
MFM_NONE, FWW_ARP_THA,
MFS_ETHERNET,
MFP_ARP,
- NXM_NX_ARP_THA,
+ false,
+ NXM_NX_ARP_THA, "NXM_NX_ARP_THA",
},
/* ## -- ## */
MFM_NONE, FWW_TP_SRC,
MFS_DECIMAL,
MFP_TCP,
- NXM_OF_TCP_SRC,
+ true,
+ NXM_OF_TCP_SRC, "NXM_OF_TCP_SRC",
}, {
MFF_TCP_DST, "tcp_dst", "tp_dst",
MF_FIELD_SIZES(be16),
MFM_NONE, FWW_TP_DST,
MFS_DECIMAL,
MFP_TCP,
- NXM_OF_TCP_DST,
+ true,
+ NXM_OF_TCP_DST, "NXM_OF_TCP_DST",
},
{
MFM_NONE, FWW_TP_SRC,
MFS_DECIMAL,
MFP_UDP,
- NXM_OF_UDP_SRC,
+ true,
+ NXM_OF_UDP_SRC, "NXM_OF_UDP_SRC",
}, {
MFF_UDP_DST, "udp_dst", NULL,
MF_FIELD_SIZES(be16),
MFM_NONE, FWW_TP_DST,
MFS_DECIMAL,
MFP_UDP,
- NXM_OF_UDP_DST,
+ true,
+ NXM_OF_UDP_DST, "NXM_OF_UDP_DST",
},
{
MFM_NONE, FWW_TP_SRC,
MFS_DECIMAL,
MFP_ICMPV4,
- NXM_OF_ICMP_TYPE,
+ false,
+ NXM_OF_ICMP_TYPE, "NXM_OF_ICMP_TYPE",
}, {
MFF_ICMPV4_CODE, "icmp_code", NULL,
MF_FIELD_SIZES(u8),
MFM_NONE, FWW_TP_DST,
MFS_DECIMAL,
MFP_ICMPV4,
- NXM_OF_ICMP_CODE,
- }, {
+ false,
+ NXM_OF_ICMP_CODE, "NXM_OF_ICMP_CODE",
+ },
+
+ {
MFF_ICMPV6_TYPE, "icmpv6_type", NULL,
MF_FIELD_SIZES(u8),
MFM_NONE, FWW_TP_SRC,
MFS_DECIMAL,
MFP_ICMPV6,
- NXM_NX_ICMPV6_TYPE,
+ false,
+ NXM_NX_ICMPV6_TYPE, "NXM_NX_ICMPV6_TYPE",
}, {
MFF_ICMPV6_CODE, "icmpv6_code", NULL,
MF_FIELD_SIZES(u8),
MFM_NONE, FWW_TP_DST,
MFS_DECIMAL,
MFP_ICMPV6,
- NXM_NX_ICMPV6_CODE,
+ false,
+ NXM_NX_ICMPV6_CODE, "NXM_NX_ICMPV6_CODE",
},
/* ## ---- ## */
MFM_NONE, FWW_ND_TARGET,
MFS_IPV6,
MFP_ND,
- NXM_NX_ND_TARGET,
+ false,
+ NXM_NX_ND_TARGET, "NXM_NX_ND_TARGET",
}, {
MFF_ND_SLL, "nd_sll", NULL,
MF_FIELD_SIZES(mac),
MFM_NONE, FWW_ARP_SHA,
MFS_ETHERNET,
MFP_ND_SOLICIT,
- NXM_NX_ND_SLL,
+ false,
+ NXM_NX_ND_SLL, "NXM_NX_ND_SLL",
}, {
MFF_ND_TLL, "nd_tll", NULL,
MF_FIELD_SIZES(mac),
MFM_NONE, FWW_ARP_THA,
MFS_ETHERNET,
MFP_ND_ADVERT,
- NXM_NX_ND_TLL,
+ false,
+ NXM_NX_ND_TLL, "NXM_NX_ND_TLL",
}
};
+struct nxm_field {
+ struct hmap_node hmap_node;
+ uint32_t nxm_header;
+ const struct mf_field *mf;
+};
+
+static struct hmap all_nxm_fields = HMAP_INITIALIZER(&all_nxm_fields);
+
/* Returns the field with the given 'id'. */
const struct mf_field *
mf_from_id(enum mf_field_id id)
return shash_find_data(&mf_by_name, name);
}
+static void
+add_nxm_field(uint32_t nxm_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;
+ f->mf = mf;
+}
+
+static void
+nxm_init(void)
+{
+ 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);
+ }
+ }
+ }
+
+#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);
+ }
+ }
+ }
+#endif
+}
+
+const struct mf_field *
+mf_from_nxm_header(uint32_t header)
+{
+ const struct nxm_field *f;
+
+ if (hmap_is_empty(&all_nxm_fields)) {
+ nxm_init();
+ }
+
+ HMAP_FOR_EACH_IN_BUCKET (f, hmap_node, hash_int(header, 0),
+ &all_nxm_fields) {
+ if (f->nxm_header == header) {
+ return f->mf;
+ }
+ }
+
+ return NULL;
+}
+
/* Returns true if 'wc' wildcards all the bits in field 'mf', false if 'wc'
* specifies at least one bit in the field.
*
}
}
+/* Makes 'rule' match field 'mf' exactly, with the value matched taken from
+ * 'value'. The caller is responsible for ensuring that 'rule' meets 'mf''s
+ * prerequisites. */
+void
+mf_set_flow_value(const struct mf_field *mf,
+ const union mf_value *value, struct flow *flow)
+{
+ switch (mf->id) {
+ case MFF_TUN_ID:
+ flow->tun_id = 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
+#error
+#endif
+#if FLOW_N_REGS > 0
+ flow->regs[mf->id - MFF_REG0] = ntohl(value->be32);
+ break;
+#endif
+
+ case MFF_ETH_SRC:
+ memcpy(flow->dl_src, value->mac, ETH_ADDR_LEN);
+ break;
+
+ case MFF_ETH_DST:
+ memcpy(flow->dl_src, value->mac, ETH_ADDR_LEN);
+ break;
+
+ case MFF_ETH_TYPE:
+ flow->dl_type = value->be16;
+ break;
+
+ case MFF_VLAN_TCI:
+ flow->vlan_tci = value->be16;
+ break;
+
+ case MFF_VLAN_VID:
+ flow_set_vlan_vid(flow, value->be16);
+ break;
+
+ case MFF_VLAN_PCP:
+ flow_set_vlan_pcp(flow, value->u8);
+ break;
+
+ case MFF_IPV4_SRC:
+ flow->nw_src = value->be32;
+ break;
+
+ case MFF_IPV4_DST:
+ flow->nw_dst = value->be32;
+ break;
+
+ case MFF_IPV6_SRC:
+ flow->ipv6_src = value->ipv6;
+ break;
+
+ case MFF_IPV6_DST:
+ flow->ipv6_dst = value->ipv6;
+ break;
+
+ case MFF_IPV6_LABEL:
+ flow->ipv6_label = value->be32 & ~htonl(IPV6_LABEL_MASK);
+ break;
+
+ case MFF_IP_PROTO:
+ flow->nw_proto = value->u8;
+ break;
+
+ case MFF_IP_DSCP:
+ flow->nw_tos &= ~IP_DSCP_MASK;
+ flow->nw_tos |= value->u8 & IP_DSCP_MASK;
+ break;
+
+ case MFF_IP_ECN:
+ flow->nw_tos &= ~IP_ECN_MASK;
+ flow->nw_tos |= value->u8 & IP_ECN_MASK;
+ break;
+
+ case MFF_IP_TTL:
+ flow->nw_ttl = value->u8;
+ break;
+
+ case MFF_IP_FRAG:
+ flow->nw_frag &= value->u8;
+ break;
+
+ case MFF_ARP_OP:
+ flow->nw_proto = ntohs(value->be16);
+ break;
+
+ case MFF_ARP_SPA:
+ flow->nw_src = value->be32;
+ break;
+
+ case MFF_ARP_TPA:
+ flow->nw_dst = value->be32;
+ break;
+
+ case MFF_ARP_SHA:
+ case MFF_ND_SLL:
+ memcpy(flow->arp_sha, value->mac, ETH_ADDR_LEN);
+ break;
+
+ case MFF_ARP_THA:
+ case MFF_ND_TLL:
+ memcpy(flow->arp_tha, value->mac, ETH_ADDR_LEN);
+ break;
+
+ case MFF_TCP_SRC:
+ case MFF_UDP_SRC:
+ flow->tp_src = value->be16;
+ break;
+
+ case MFF_TCP_DST:
+ case MFF_UDP_DST:
+ flow->tp_dst = value->be16;
+ break;
+
+ case MFF_ICMPV4_TYPE:
+ case MFF_ICMPV6_TYPE:
+ flow->tp_src = htons(value->u8);
+ break;
+
+ case MFF_ICMPV4_CODE:
+ case MFF_ICMPV6_CODE:
+ flow->tp_dst = htons(value->u8);
+ break;
+
+ case MFF_ND_TARGET:
+ flow->nd_target = value->ipv6;
+ break;
+
+ case MFF_N_IDS:
+ default:
+ NOT_REACHED();
+ }
+}
+
/* Makes 'rule' wildcard field 'mf'.
*
* The caller is responsible for ensuring that 'rule' meets 'mf''s
BAD_ARGUMENT = OFP_MKERR(OFPET_BAD_ACTION, OFPBAC_BAD_ARGUMENT)
};
-/* For each NXM_* field, define NFI_NXM_* as consecutive integers starting from
- * zero. */
-enum nxm_field_index {
-#define DEFINE_FIELD(HEADER, MFF_ID, WRITABLE) \
- NFI_NXM_##HEADER,
-#include "nx-match.def"
- N_NXM_FIELDS
-};
-
-struct nxm_field {
- struct hmap_node hmap_node;
- enum nxm_field_index index; /* NFI_* value. */
- uint32_t header; /* NXM_* value. */
- enum mf_field_id mf_id; /* MFF_* value. */
- const struct mf_field *mf;
- const char *name; /* "NXM_*" string. */
- bool writable; /* Writable with NXAST_REG_{MOVE,LOAD}? */
-};
-
-/* All the known fields. */
-static struct nxm_field nxm_fields[N_NXM_FIELDS] = {
-#define DEFINE_FIELD(HEADER, MFF_ID, WRITABLE) \
- { HMAP_NODE_NULL_INITIALIZER, NFI_NXM_##HEADER, NXM_##HEADER, \
- MFF_ID, NULL, "NXM_" #HEADER, WRITABLE },
-#include "nx-match.def"
-};
-
-/* Hash table of 'nxm_fields'. */
-static struct hmap all_nxm_fields = HMAP_INITIALIZER(&all_nxm_fields);
-
-static void
-nxm_init(void)
-{
- if (hmap_is_empty(&all_nxm_fields)) {
- int i;
-
- for (i = 0; i < N_NXM_FIELDS; i++) {
- struct nxm_field *f = &nxm_fields[i];
- hmap_insert(&all_nxm_fields, &f->hmap_node,
- hash_int(f->header, 0));
- f->mf = mf_from_id(f->mf_id);
- }
-
- /* Verify that the header values are unique (duplicate "case" values
- * cause a compile error). */
- switch (0) {
-#define DEFINE_FIELD(HEADER, MFF_ID, WRITABLE) \
- case NXM_##HEADER: break;
-#include "nx-match.def"
- }
- }
-}
-
-static const struct nxm_field *
-nxm_field_lookup(uint32_t header)
-{
- struct nxm_field *f;
-
- nxm_init();
-
- HMAP_FOR_EACH_WITH_HASH (f, hmap_node, hash_int(header, 0),
- &all_nxm_fields) {
- if (f->header == header) {
- return f;
- }
- }
-
- return NULL;
-}
-
/* Returns the width of the data for a field with the given 'header', in
* bytes. */
int
{
return nxm_field_bytes(header) * 8;
}
-
-const struct mf_field *
-nxm_field_to_mf_field(uint32_t header)
-{
- const struct nxm_field *f = nxm_field_lookup(header);
- return f ? f->mf : NULL;
-}
\f
/* nx_pull_match() and helpers. */
cls_rule_init_catchall(rule, priority);
while ((header = nx_entry_ok(p, match_len)) != 0) {
unsigned length = NXM_LENGTH(header);
- const struct nxm_field *f;
+ const struct mf_field *mf;
int error;
- f = nxm_field_lookup(header);
- if (!f) {
+ mf = mf_from_nxm_header(header);
+ if (!mf) {
error = NXM_BAD_TYPE;
- } else if (!mf_are_prereqs_ok(f->mf, &rule->flow)) {
+ } else if (!mf_are_prereqs_ok(mf, &rule->flow)) {
error = NXM_BAD_PREREQ;
- } else if (!mf_is_all_wild(f->mf, &rule->wc)) {
+ } else if (!mf_is_all_wild(mf, &rule->wc)) {
error = NXM_DUP_TYPE;
} else {
- unsigned int width = f->mf->n_bytes;
+ unsigned int width = mf->n_bytes;
union mf_value value;
memcpy(&value, p + 4, width);
- if (!mf_is_value_valid(f->mf, &value)) {
+ if (!mf_is_value_valid(mf, &value)) {
error = NXM_BAD_VALUE;
} else if (!NXM_HASMASK(header)) {
error = 0;
- mf_set_value(f->mf, &value, rule);
+ mf_set_value(mf, &value, rule);
} else {
union mf_value mask;
memcpy(&mask, p + 4 + width, width);
- if (!mf_is_mask_valid(f->mf, &mask)) {
+ if (!mf_is_mask_valid(mf, &mask)) {
error = NXM_BAD_MASK;
} else {
error = 0;
- mf_set(f->mf, &value, &mask, rule);
+ mf_set(mf, &value, &mask, rule);
}
}
}
if (error) {
char *msg = ofputil_error_to_string(error);
- VLOG_DBG_RL(&rl, "bad nxm_entry with vendor=%"PRIu32", "
- "field=%"PRIu32", hasmask=%"PRIu32", type=%"PRIu32" "
- "(%s)",
+ VLOG_DBG_RL(&rl, "bad nxm_entry %#08"PRIx32" (vendor=%"PRIu32", "
+ "field=%"PRIu32", hasmask=%"PRIu32", len=%"PRIu32"), "
+ "(%s)", header,
NXM_VENDOR(header), NXM_FIELD(header),
- NXM_HASMASK(header), NXM_TYPE(header),
+ NXM_HASMASK(header), NXM_LENGTH(header),
msg);
free(msg);
static void
format_nxm_field_name(struct ds *s, uint32_t header)
{
- const struct nxm_field *f = nxm_field_lookup(header);
- if (f) {
- ds_put_cstr(s, f->name);
+ const struct mf_field *mf = mf_from_nxm_header(header);
+ if (mf) {
+ ds_put_cstr(s, mf->nxm_name);
+ if (NXM_HASMASK(header)) {
+ ds_put_cstr(s, "_W");
+ }
} else {
ds_put_format(s, "%d:%d", NXM_VENDOR(header), NXM_FIELD(header));
}
static uint32_t
parse_nxm_field_name(const char *name, int name_len)
{
- const struct nxm_field *f;
+ bool wild;
+ int i;
/* Check whether it's a field name. */
- for (f = nxm_fields; f < &nxm_fields[ARRAY_SIZE(nxm_fields)]; f++) {
- if (!strncmp(f->name, name, name_len) && f->name[name_len] == '\0') {
- return f->header;
+ wild = name_len > 2 && !memcmp(&name[name_len - 2], "_W", 2);
+ if (wild) {
+ name_len -= 2;
+ }
+ for (i = 0; i < MFF_N_IDS; i++) {
+ const struct mf_field *mf = mf_from_id(i);
+
+ if (mf->nxm_name
+ && !strncmp(mf->nxm_name, name, name_len)
+ && mf->nxm_name[name_len] == '\0') {
+ if (!wild) {
+ return mf->nxm_header;
+ } else if (mf->maskable != MFM_NONE) {
+ return NXM_MAKE_WILD_HEADER(mf->nxm_header);
+ }
}
}
/* nxm_check_reg_move(), nxm_check_reg_load(). */
static bool
-field_ok(const struct nxm_field *f, const struct flow *flow, int size)
+field_ok(const struct mf_field *mf, const struct flow *flow, int size)
{
- return (f
- && !NXM_HASMASK(f->header)
- && mf_are_prereqs_ok(f->mf, flow)
- && size <= nxm_field_bits(f->header));
+ return (mf
+ && mf_are_prereqs_ok(mf, flow)
+ && size <= nxm_field_bits(mf->nxm_header));
}
int
/* Given a flow, checks that the source field represented by 'src_header'
* in the range ['ofs', 'ofs' + 'n_bits') is valid. */
int
-nxm_src_check(ovs_be32 src_header, unsigned int ofs, unsigned int n_bits,
+nxm_src_check(ovs_be32 src_header_, unsigned int ofs, unsigned int n_bits,
const struct flow *flow)
{
- const struct nxm_field *src = nxm_field_lookup(ntohl(src_header));
+ uint32_t src_header = ntohl(src_header_);
+ const struct mf_field *src = mf_from_nxm_header(src_header);
if (!n_bits) {
VLOG_WARN_RL(&rl, "zero bit source field");
- } else if (!field_ok(src, flow, ofs + n_bits)) {
+ } else if (NXM_HASMASK(src_header) || !field_ok(src, flow, ofs + n_bits)) {
VLOG_WARN_RL(&rl, "invalid source field");
} else {
return 0;
/* Given a flow, checks that the destination field represented by 'dst_header'
* in the range ['ofs', 'ofs' + 'n_bits') is valid. */
int
-nxm_dst_check(ovs_be32 dst_header, unsigned int ofs, unsigned int n_bits,
+nxm_dst_check(ovs_be32 dst_header_, unsigned int ofs, unsigned int n_bits,
const struct flow *flow)
{
- const struct nxm_field *dst = nxm_field_lookup(ntohl(dst_header));
+ uint32_t dst_header = ntohl(dst_header_);
+ const struct mf_field *dst = mf_from_nxm_header(dst_header);
if (!n_bits) {
VLOG_WARN_RL(&rl, "zero bit destination field");
- } else if (!field_ok(dst, flow, ofs + n_bits)) {
+ } else if (NXM_HASMASK(dst_header) || !field_ok(dst, flow, ofs + n_bits)) {
VLOG_WARN_RL(&rl, "invalid destination field");
} else if (!dst->writable) {
VLOG_WARN_RL(&rl, "destination field is not writable");
\f
/* nxm_execute_reg_move(), nxm_execute_reg_load(). */
-static uint64_t
-nxm_read_field(const struct nxm_field *src, const struct flow *flow)
+static void
+bitwise_copy(const void *src_, unsigned int src_len, unsigned int src_ofs,
+ void *dst_, unsigned int dst_len, unsigned int dst_ofs,
+ unsigned int n_bits)
{
- switch (src->index) {
- case NFI_NXM_OF_IN_PORT:
- return flow->in_port;
-
- case NFI_NXM_OF_ETH_DST:
- return eth_addr_to_uint64(flow->dl_dst);
-
- case NFI_NXM_OF_ETH_SRC:
- return eth_addr_to_uint64(flow->dl_src);
-
- case NFI_NXM_OF_ETH_TYPE:
- return ntohs(ofputil_dl_type_to_openflow(flow->dl_type));
-
- case NFI_NXM_OF_VLAN_TCI:
- return ntohs(flow->vlan_tci);
-
- case NFI_NXM_OF_IP_TOS:
- return flow->nw_tos & IP_DSCP_MASK;
-
- case NFI_NXM_NX_IP_ECN:
- return flow->nw_tos & IP_ECN_MASK;
-
- case NFI_NXM_NX_IP_TTL:
- return flow->nw_ttl;
-
- case NFI_NXM_NX_IP_FRAG:
- return flow->nw_frag;
-
- case NFI_NXM_OF_IP_PROTO:
- case NFI_NXM_OF_ARP_OP:
- return flow->nw_proto;
-
- case NFI_NXM_OF_IP_SRC:
- case NFI_NXM_OF_ARP_SPA:
- return ntohl(flow->nw_src);
-
- case NFI_NXM_OF_IP_DST:
- case NFI_NXM_OF_ARP_TPA:
- return ntohl(flow->nw_dst);
-
- case NFI_NXM_OF_TCP_SRC:
- case NFI_NXM_OF_UDP_SRC:
- return ntohs(flow->tp_src);
-
- case NFI_NXM_OF_TCP_DST:
- case NFI_NXM_OF_UDP_DST:
- return ntohs(flow->tp_dst);
-
- case NFI_NXM_OF_ICMP_TYPE:
- case NFI_NXM_NX_ICMPV6_TYPE:
- return ntohs(flow->tp_src) & 0xff;
-
- case NFI_NXM_OF_ICMP_CODE:
- case NFI_NXM_NX_ICMPV6_CODE:
- return ntohs(flow->tp_dst) & 0xff;
-
- case NFI_NXM_NX_TUN_ID:
- return ntohll(flow->tun_id);
-
- case NFI_NXM_NX_IPV6_LABEL:
- return ntohl(flow->ipv6_label);
-
-#define NXM_READ_REGISTER(IDX) \
- case NFI_NXM_NX_REG##IDX: \
- return flow->regs[IDX]; \
- case NFI_NXM_NX_REG##IDX##_W: \
- NOT_REACHED();
-
- NXM_READ_REGISTER(0);
-#if FLOW_N_REGS >= 2
- NXM_READ_REGISTER(1);
-#endif
-#if FLOW_N_REGS >= 3
- NXM_READ_REGISTER(2);
-#endif
-#if FLOW_N_REGS >= 4
- NXM_READ_REGISTER(3);
-#endif
-#if FLOW_N_REGS >= 5
- NXM_READ_REGISTER(4);
-#endif
-#if FLOW_N_REGS > 5
-#error
-#endif
-
- case NFI_NXM_NX_ARP_SHA:
- case NFI_NXM_NX_ND_SLL:
- return eth_addr_to_uint64(flow->arp_sha);
-
- case NFI_NXM_NX_ARP_THA:
- case NFI_NXM_NX_ND_TLL:
- return eth_addr_to_uint64(flow->arp_tha);
-
- case NFI_NXM_NX_TUN_ID_W:
- case NFI_NXM_OF_ETH_DST_W:
- case NFI_NXM_OF_VLAN_TCI_W:
- case NFI_NXM_OF_IP_SRC_W:
- case NFI_NXM_OF_IP_DST_W:
- case NFI_NXM_OF_ARP_SPA_W:
- case NFI_NXM_OF_ARP_TPA_W:
- case NFI_NXM_NX_IPV6_SRC:
- case NFI_NXM_NX_IPV6_SRC_W:
- case NFI_NXM_NX_IPV6_DST:
- case NFI_NXM_NX_IPV6_DST_W:
- case NFI_NXM_NX_IP_FRAG_W:
- case NFI_NXM_NX_ND_TARGET:
- case N_NXM_FIELDS:
- NOT_REACHED();
- }
+ const uint8_t *src = src_;
+ uint8_t *dst = dst_;
+
+ src += src_len - (src_ofs / 8 + 1);
+ src_ofs %= 8;
+
+ dst += dst_len - (dst_ofs / 8 + 1);
+ dst_ofs %= 8;
- NOT_REACHED();
+ if (src_ofs == 0 && dst_ofs == 0) {
+ unsigned int n_bytes = n_bits / 8;
+ if (n_bytes) {
+ dst -= n_bytes - 1;
+ src -= n_bytes - 1;
+ memcpy(dst, src, n_bytes);
+
+ n_bits %= 8;
+ src--;
+ dst--;
+ }
+ if (n_bits) {
+ uint8_t mask = (1 << n_bits) - 1;
+ *dst = (*dst & ~mask) | (*src & mask);
+ }
+ } else {
+ while (n_bits > 0) {
+ unsigned int max_copy = 8 - MAX(src_ofs, dst_ofs);
+ unsigned int chunk = MIN(n_bits, max_copy);
+ uint8_t mask = ((1 << chunk) - 1) << dst_ofs;
+
+ *dst &= ~mask;
+ *dst |= ((*src >> src_ofs) << dst_ofs) & mask;
+
+ src_ofs += chunk;
+ if (src_ofs == 8) {
+ src--;
+ src_ofs = 0;
+ }
+ dst_ofs += chunk;
+ if (dst_ofs == 8) {
+ dst--;
+ dst_ofs = 0;
+ }
+ n_bits -= chunk;
+ }
+ }
}
/* Returns the value of the NXM field corresponding to 'header' at 'ofs_nbits'
nxm_read_field_bits(ovs_be32 header, ovs_be16 ofs_nbits,
const struct flow *flow)
{
- int n_bits = nxm_decode_n_bits(ofs_nbits);
- int ofs = nxm_decode_ofs(ofs_nbits);
- uint64_t mask, data;
-
- mask = n_bits == 64 ? UINT64_MAX : (UINT64_C(1) << n_bits) - 1;
- data = nxm_read_field(nxm_field_lookup(ntohl(header)), flow);
- data = (data >> ofs) & mask;
-
- return data;
-}
-
-static void
-nxm_write_field(const struct nxm_field *dst, struct flow *flow,
- uint64_t new_value)
-{
- switch (dst->index) {
- case NFI_NXM_OF_ETH_DST:
- eth_addr_from_uint64(new_value, flow->dl_dst);
- break;
-
- case NFI_NXM_OF_ETH_SRC:
- eth_addr_from_uint64(new_value, flow->dl_src);
- break;
-
- case NFI_NXM_OF_VLAN_TCI:
- flow->vlan_tci = htons(new_value);
- break;
-
- case NFI_NXM_NX_TUN_ID:
- flow->tun_id = htonll(new_value);
- break;
-
-#define NXM_WRITE_REGISTER(IDX) \
- case NFI_NXM_NX_REG##IDX: \
- flow->regs[IDX] = new_value; \
- break; \
- case NFI_NXM_NX_REG##IDX##_W: \
- NOT_REACHED();
-
- NXM_WRITE_REGISTER(0);
-#if FLOW_N_REGS >= 2
- NXM_WRITE_REGISTER(1);
-#endif
-#if FLOW_N_REGS >= 3
- NXM_WRITE_REGISTER(2);
-#endif
-#if FLOW_N_REGS >= 4
- NXM_WRITE_REGISTER(3);
-#endif
-#if FLOW_N_REGS >= 5
- NXM_WRITE_REGISTER(4);
-#endif
-#if FLOW_N_REGS > 5
-#error
-#endif
-
- case NFI_NXM_OF_IP_TOS:
- flow->nw_tos &= ~IP_DSCP_MASK;
- flow->nw_tos |= new_value & IP_DSCP_MASK;
- break;
-
- case NFI_NXM_NX_IP_ECN:
- flow->nw_tos &= ~IP_ECN_MASK;
- flow->nw_tos |= new_value & IP_ECN_MASK;
- break;
-
- case NFI_NXM_NX_IP_TTL:
- flow->nw_ttl = new_value;
- break;
-
- case NFI_NXM_NX_IP_FRAG:
- flow->nw_frag = new_value;
- break;
-
- case NFI_NXM_OF_IP_SRC:
- flow->nw_src = htonl(new_value);
- break;
-
- case NFI_NXM_OF_IP_DST:
- flow->nw_dst = htonl(new_value);
- break;
-
- case NFI_NXM_NX_IPV6_LABEL:
- flow->ipv6_label = htonl(new_value);
- break;
-
- case NFI_NXM_OF_TCP_SRC:
- case NFI_NXM_OF_UDP_SRC:
- flow->tp_src = htons(new_value);
- break;
-
- case NFI_NXM_OF_TCP_DST:
- case NFI_NXM_OF_UDP_DST:
- flow->tp_dst = htons(new_value);
- break;
-
- case NFI_NXM_OF_IN_PORT:
- case NFI_NXM_OF_ETH_TYPE:
- case NFI_NXM_OF_IP_PROTO:
- case NFI_NXM_OF_ARP_OP:
- case NFI_NXM_OF_ARP_SPA:
- case NFI_NXM_OF_ARP_TPA:
- case NFI_NXM_OF_ICMP_TYPE:
- case NFI_NXM_OF_ICMP_CODE:
- case NFI_NXM_NX_TUN_ID_W:
- case NFI_NXM_OF_ETH_DST_W:
- case NFI_NXM_OF_VLAN_TCI_W:
- case NFI_NXM_OF_IP_SRC_W:
- case NFI_NXM_OF_IP_DST_W:
- case NFI_NXM_OF_ARP_SPA_W:
- case NFI_NXM_OF_ARP_TPA_W:
- case NFI_NXM_NX_ARP_SHA:
- case NFI_NXM_NX_ARP_THA:
- case NFI_NXM_NX_IPV6_SRC:
- case NFI_NXM_NX_IPV6_SRC_W:
- case NFI_NXM_NX_IPV6_DST:
- case NFI_NXM_NX_IPV6_DST_W:
- case NFI_NXM_NX_IP_FRAG_W:
- case NFI_NXM_NX_ICMPV6_TYPE:
- case NFI_NXM_NX_ICMPV6_CODE:
- case NFI_NXM_NX_ND_TARGET:
- case NFI_NXM_NX_ND_SLL:
- case NFI_NXM_NX_ND_TLL:
- case N_NXM_FIELDS:
- NOT_REACHED();
- }
+ const struct mf_field *field = mf_from_nxm_header(ntohl(header));
+ union mf_value value;
+ union mf_value bits;
+
+ mf_get_value(field, flow, &value);
+ bits.be64 = htonll(0);
+ bitwise_copy(&value, field->n_bytes, nxm_decode_ofs(ofs_nbits),
+ &bits, sizeof bits.be64, 0,
+ nxm_decode_n_bits(ofs_nbits));
+ return ntohll(bits.be64);
}
void
nxm_execute_reg_move(const struct nx_action_reg_move *action,
struct flow *flow)
{
- ovs_be16 src_ofs_nbits, dst_ofs_nbits;
- uint64_t src_data;
- int n_bits;
-
- n_bits = ntohs(action->n_bits);
- src_ofs_nbits = nxm_encode_ofs_nbits(ntohs(action->src_ofs), n_bits);
- dst_ofs_nbits = nxm_encode_ofs_nbits(ntohs(action->dst_ofs), n_bits);
-
- src_data = nxm_read_field_bits(action->src, src_ofs_nbits, flow);
- nxm_reg_load(action->dst, dst_ofs_nbits, src_data, flow);
+ const struct mf_field *src = mf_from_nxm_header(ntohl(action->src));
+ const struct mf_field *dst = mf_from_nxm_header(ntohl(action->dst));
+ union mf_value src_value;
+ union mf_value dst_value;
+
+ mf_get_value(dst, flow, &dst_value);
+ mf_get_value(src, flow, &src_value);
+ bitwise_copy(&src_value, src->n_bytes, ntohs(action->src_ofs),
+ &dst_value, dst->n_bytes, ntohs(action->dst_ofs),
+ ntohs(action->n_bits));
+ mf_set_flow_value(dst, &dst_value, flow);
}
void
nxm_reg_load(ovs_be32 dst_header, ovs_be16 ofs_nbits, uint64_t src_data,
struct flow *flow)
{
+ const struct mf_field *dst = mf_from_nxm_header(ntohl(dst_header));
int n_bits = nxm_decode_n_bits(ofs_nbits);
int dst_ofs = nxm_decode_ofs(ofs_nbits);
- uint64_t mask = n_bits == 64 ? UINT64_MAX : (UINT64_C(1) << n_bits) - 1;
-
- /* Get remaining bits of the destination field. */
- const struct nxm_field *dst = nxm_field_lookup(ntohl(dst_header));
- uint64_t dst_data = nxm_read_field(dst, flow) & ~(mask << dst_ofs);
-
- /* Get the final value. */
- uint64_t new_data = dst_data | (src_data << dst_ofs);
-
- nxm_write_field(dst, flow, new_data);
+ union mf_value dst_value;
+ union mf_value src_value;
+
+ mf_get_value(dst, flow, &dst_value);
+ src_value.be64 = htonll(src_data);
+ bitwise_copy(&src_value, sizeof src_value.be64, 0,
+ &dst_value, dst->n_bytes, dst_ofs,
+ n_bits);
+ mf_set_flow_value(dst, &dst_value, flow);
}
+++ /dev/null
-/* -*- c -*-
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
- *
- * 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.
- */
-
-#define DEFINE_FIELD_M(HEADER, MFF_ID, WRITABLE) \
- DEFINE_FIELD(HEADER, MFF_ID, WRITABLE) \
- DEFINE_FIELD(HEADER##_W, MFF_ID, false)
-
-/* NXM_ suffix MFF_ field ID rw? */
-/* ------------ ------------ ----- */
-DEFINE_FIELD_M(NX_TUN_ID, MFF_TUN_ID, true)
-DEFINE_FIELD (OF_IN_PORT, MFF_IN_PORT, false)
-DEFINE_FIELD_M(OF_ETH_DST, MFF_ETH_DST, true)
-DEFINE_FIELD (OF_ETH_SRC, MFF_ETH_SRC, true)
-DEFINE_FIELD (OF_ETH_TYPE, MFF_ETH_TYPE, false)
-DEFINE_FIELD_M(OF_VLAN_TCI, MFF_VLAN_TCI, true)
-DEFINE_FIELD (OF_IP_TOS, MFF_IP_DSCP, true)
-DEFINE_FIELD (OF_IP_PROTO, MFF_IP_PROTO, false)
-DEFINE_FIELD_M(OF_IP_SRC, MFF_IPV4_SRC, true)
-DEFINE_FIELD_M(OF_IP_DST, MFF_IPV4_DST, true)
-DEFINE_FIELD_M(NX_IP_FRAG, MFF_IP_FRAG, false)
-DEFINE_FIELD (OF_TCP_SRC, MFF_TCP_SRC, true)
-DEFINE_FIELD (OF_TCP_DST, MFF_TCP_DST, true)
-DEFINE_FIELD (OF_UDP_SRC, MFF_UDP_SRC, true)
-DEFINE_FIELD (OF_UDP_DST, MFF_UDP_DST, true)
-DEFINE_FIELD (OF_ICMP_TYPE, MFF_ICMPV4_TYPE, false)
-DEFINE_FIELD (OF_ICMP_CODE, MFF_ICMPV4_CODE, false)
-DEFINE_FIELD (OF_ARP_OP, MFF_ARP_OP, false)
-DEFINE_FIELD_M(OF_ARP_SPA, MFF_ARP_SPA, false)
-DEFINE_FIELD_M(OF_ARP_TPA, MFF_ARP_TPA, false)
-DEFINE_FIELD (NX_ARP_SHA, MFF_ARP_SHA, false)
-DEFINE_FIELD (NX_ARP_THA, MFF_ARP_THA, false)
-DEFINE_FIELD_M(NX_IPV6_SRC, MFF_IPV6_SRC, false)
-DEFINE_FIELD_M(NX_IPV6_DST, MFF_IPV6_DST, false)
-DEFINE_FIELD (NX_IPV6_LABEL, MFF_IPV6_LABEL,false)
-DEFINE_FIELD (NX_IP_ECN, MFF_IP_ECN, true)
-DEFINE_FIELD (NX_IP_TTL, MFF_IP_TTL, true)
-/* XXX should we have MFF_ICMPV4_TYPE and MFF_ICMPV6_TYPE? */
-DEFINE_FIELD (NX_ICMPV6_TYPE,MFF_ICMPV6_TYPE, false)
-DEFINE_FIELD (NX_ICMPV6_CODE,MFF_ICMPV6_CODE, false)
-DEFINE_FIELD (NX_ND_TARGET, MFF_ND_TARGET, false)
-DEFINE_FIELD (NX_ND_SLL, MFF_ND_SLL, false)
-DEFINE_FIELD (NX_ND_TLL, MFF_ND_TLL, false)
-
-DEFINE_FIELD_M(NX_REG0, MFF_REG0, true)
-#if FLOW_N_REGS >= 2
-DEFINE_FIELD_M(NX_REG1, MFF_REG1, true)
-#endif
-#if FLOW_N_REGS >= 3
-DEFINE_FIELD_M(NX_REG2, MFF_REG2, true)
-#endif
-#if FLOW_N_REGS >= 4
-DEFINE_FIELD_M(NX_REG3, MFF_REG3, true)
-#endif
-#if FLOW_N_REGS >= 5
-DEFINE_FIELD_M(NX_REG4, MFF_REG4, true)
-#endif
-#if FLOW_N_REGS > 5
-#error
-#endif
-
-#undef DEFINE_FIELD
projects / openvswitch / commitdiff