struct ofp_action_nw_addr nw_addr;
struct ofp_action_nw_tos nw_tos;
struct ofp11_action_nw_ecn nw_ecn;
+ struct ofp11_action_nw_ttl nw_ttl;
struct ofp_action_tp_port tp_port;
};
OFP_ASSERT(sizeof(union ofp_action) == 8);
ofpact_put_SET_IP_ECN(out)->ecn = a->nw_ecn.nw_ecn;
break;
+ case OFPUTIL_OFPAT11_SET_NW_TTL:
+ ofpact_put_SET_IP_TTL(out)->ttl = a->nw_ttl.nw_ttl;
+ break;
+
case OFPUTIL_OFPAT11_SET_TP_SRC:
ofpact_put_SET_L4_SRC_PORT(out)->port = ntohs(a->tp_port.tp_port);
break;
case OFPACT_SET_ETH_SRC:
case OFPACT_SET_IP_DSCP:
case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_SET_IPV4_DST:
case OFPACT_SET_IPV4_SRC:
case OFPACT_SET_L4_DST_PORT:
case OFPACT_SET_ETH_SRC:
case OFPACT_SET_IP_DSCP:
case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_SET_IPV4_DST:
case OFPACT_SET_IPV4_SRC:
case OFPACT_SET_L4_DST_PORT:
case OFPACT_SET_IPV4_DST:
case OFPACT_SET_IP_DSCP:
case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_SET_L4_SRC_PORT:
case OFPACT_SET_L4_DST_PORT:
case OFPACT_REG_MOVE:
case OFPACT_SET_IPV4_DST:
case OFPACT_SET_IP_DSCP:
case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_SET_L4_SRC_PORT:
case OFPACT_SET_L4_DST_PORT:
return 0;
case OFPACT_SET_IPV4_DST:
case OFPACT_SET_IP_DSCP:
case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_SET_L4_SRC_PORT:
case OFPACT_SET_L4_DST_PORT:
case OFPACT_WRITE_ACTIONS:
case OFPACT_STACK_POP:
case OFPACT_DEC_TTL:
case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_SET_MPLS_TTL:
case OFPACT_DEC_MPLS_TTL:
case OFPACT_SET_TUNNEL:
= ofpact_get_SET_IP_ECN(a)->ecn;
break;
+ case OFPACT_SET_IP_TTL:
+ ofputil_put_OFPAT11_SET_NW_TTL(out)->nw_ttl
+ = ofpact_get_SET_IP_TTL(a)->ttl;
+ break;
+
case OFPACT_SET_L4_SRC_PORT:
ofputil_put_OFPAT11_SET_TP_SRC(out)->tp_port
= htons(ofpact_get_SET_L4_SRC_PORT(a)->port);
case OFPACT_SET_IPV4_DST:
case OFPACT_SET_IP_DSCP:
case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_SET_L4_SRC_PORT:
case OFPACT_SET_L4_DST_PORT:
case OFPACT_REG_MOVE:
ds_put_format(s, "mod_nw_ecn:%d", ofpact_get_SET_IP_ECN(a)->ecn);
break;
+ case OFPACT_SET_IP_TTL:
+ ds_put_format(s, "mod_nw_ttl:%d", ofpact_get_SET_IP_TTL(a)->ttl);
+ break;
+
case OFPACT_SET_L4_SRC_PORT:
ds_put_format(s, "mod_tp_src:%d", ofpact_get_SET_L4_SRC_PORT(a)->port);
break;
DEFINE_OFPACT(SET_IPV4_DST, ofpact_ipv4, ofpact) \
DEFINE_OFPACT(SET_IP_DSCP, ofpact_dscp, ofpact) \
DEFINE_OFPACT(SET_IP_ECN, ofpact_ecn, ofpact) \
+ DEFINE_OFPACT(SET_IP_TTL, ofpact_ip_ttl, ofpact) \
DEFINE_OFPACT(SET_L4_SRC_PORT, ofpact_l4_port, ofpact) \
DEFINE_OFPACT(SET_L4_DST_PORT, ofpact_l4_port, ofpact) \
DEFINE_OFPACT(REG_MOVE, ofpact_reg_move, ofpact) \
uint8_t ecn; /* ECN in low 2 bits, rest ignored. */
};
+/* OFPACT_SET_IP_TTL.
+ *
+ * Used for OFPAT11_SET_NW_TTL. */
+struct ofpact_ip_ttl {
+ struct ofpact ofpact;
+ uint8_t ttl;
+};
+
/* OFPACT_SET_L4_SRC_PORT, OFPACT_SET_L4_DST_PORT.
*
* Used for OFPAT10_SET_TP_SRC, OFPAT10_SET_TP_DST. */
char *error = NULL;
uint16_t ethertype = 0;
uint16_t vid = 0;
- uint8_t tos = 0, ecn;
+ uint8_t tos = 0, ecn, ttl;
uint8_t pcp = 0;
switch (code) {
ofpact_put_SET_IP_ECN(ofpacts)->ecn = ecn;
break;
+ case OFPUTIL_OFPAT11_SET_NW_TTL:
+ error = str_to_u8(arg, "TTL", &ttl);
+ if (error) {
+ return error;
+ }
+
+ ofpact_put_SET_IP_TTL(ofpacts)->ttl = ttl;
+ break;
+
case OFPUTIL_OFPAT11_DEC_NW_TTL:
NOT_REACHED();
OFPAT11_ACTION(OFPAT11_PUSH_MPLS, ofp11_action_push, 0, "push_mpls")
OFPAT11_ACTION(OFPAT11_POP_MPLS, ofp11_action_pop_mpls, 0, "pop_mpls")
OFPAT11_ACTION(OFPAT11_SET_QUEUE, ofp11_action_set_queue, 0, "set_queue")
-//OFPAT11_ACTION(OFPAT11_SET_NW_TTL, ofp11_action_nw_ttl, 0, "set_nw_ttl")
+OFPAT11_ACTION(OFPAT11_SET_NW_TTL, ofp11_action_nw_ttl, 0, "mod_nw_ttl")
OFPAT11_ACTION(OFPAT11_DEC_NW_TTL, ofp_action_header, 0, NULL)
OFPAT11_ACTION(OFPAT12_SET_FIELD, ofp12_action_set_field, 1, "set_field")
OFPAT11_ACTION(OFPAT11_GROUP, ofp11_action_group, 0, "group")
}
break;
+ case OFPACT_SET_IP_TTL:
+ if (is_ip_any(flow)) {
+ wc->masks.nw_ttl = 0xff;
+ flow->nw_ttl = ofpact_get_SET_IP_TTL(a)->ttl;
+ }
+ break;
+
case OFPACT_SET_L4_SRC_PORT:
if (is_ip_any(flow)) {
memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
udp,nw_src=192.168.0.3,tp_dst=53 actions=mod_nw_ecn:2,output:1
cookie=0x123456789abcdef hard_timeout=10 priority=60000 actions=controller
actions=note:41.42.43,note:00.01.02.03.04.05.06.07,note
-ip,actions=set_field:10.4.3.77->ip_src
+ip,actions=mod_nw_ttl:1,set_field:10.4.3.77->ip_src
sctp actions=drop
sctp actions=drop
in_port=0 actions=resubmit:0
OFPT_FLOW_MOD (OF1.1): ADD table:255 udp,nw_src=192.168.0.3,tp_dst=53 actions=mod_nw_ecn:2,output:1
OFPT_FLOW_MOD (OF1.1): ADD table:255 priority=60000 cookie:0x123456789abcdef hard:10 actions=CONTROLLER:65535
OFPT_FLOW_MOD (OF1.1): ADD table:255 actions=note:41.42.43.00.00.00,note:00.01.02.03.04.05.06.07.00.00.00.00.00.00,note:00.00.00.00.00.00
-OFPT_FLOW_MOD (OF1.1): ADD table:255 ip actions=load:0xa04034d->NXM_OF_IP_SRC[]
+OFPT_FLOW_MOD (OF1.1): ADD table:255 ip actions=mod_nw_ttl:1,load:0xa04034d->NXM_OF_IP_SRC[]
OFPT_FLOW_MOD (OF1.1): ADD table:255 sctp actions=drop
OFPT_FLOW_MOD (OF1.1): ADD table:255 sctp actions=drop
OFPT_FLOW_MOD (OF1.1): ADD table:255 in_port=0 actions=resubmit:0
the six most significant bits of the field (the DSCP bits).
.IP
Requires OpenFlow 1.1 or later.
+.
+.IP \fBmod_nw_ttl\fB:\fIttl\fR
+Sets the IPv4 TTL or IPv6 hop limit field to \fIttl\fR, which is specified as
+a decimal number between 0 and 255, inclusive. Switch behavior when setting
+\fIttl\fR to zero is not well specified, though.
+.IP
+Requires OpenFlow 1.1 or later.
.RE
.IP
The following actions are Nicira vendor extensions that, as of this writing, are
.IQ
\fBmod_nw_ecn\fR
.IQ
+\fBmod_nw_ttl\fR
+.IQ
\fBmod_tp_dst\fR
.IQ
\fBmod_tp_src\fR