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Change ethernet addresses, too

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This commit is contained in:
Nico Schottelius 2019-04-03 11:02:07 +02:00
parent 92faaa1852
commit bc2eb7dad1
1 changed files with 11 additions and 3 deletions
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14
p4src/static-mapping.p4
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@ -302,11 +302,19 @@ Echo or Echo Reply Message
} }
action icmp_echo_reply() { action icmp_echo_reply() {
ipv4_addr_t tmp = hdr.ipv4.src_addr; mac_addr_t mac_tmp = hdr.ethernet.dst_addr;
ipv4_addr_t ipv4_tmp = hdr.ipv4.src_addr;
hdr.icmp.type = ICMP_ECHO_REPLY; /* swap ethernet addresses */
hdr.ethernet.dst_addr = hdr.ethernet.src_addr;
hdr.ethernet.src_addr = mac_tmp;
/* swap ipv4 addresses */
hdr.ipv4.src_addr = hdr.ipv4.dst_addr; hdr.ipv4.src_addr = hdr.ipv4.dst_addr;
hdr.ipv4.dst_addr = tmp; hdr.ipv4.dst_addr = ipv4_tmp;
/* set correct type */
hdr.icmp.type = ICMP_ECHO_REPLY;
meta.chk_icmp = 1; meta.chk_icmp = 1;
} }