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-rw-r--r--arp.c4
-rw-r--r--conf.c10
-rw-r--r--dhcpv6.c6
-rw-r--r--ndp.c4
-rw-r--r--passt.c2
-rw-r--r--passt.h8
-rw-r--r--pasta.c8
-rw-r--r--tap.c12
8 files changed, 28 insertions, 26 deletions
diff --git a/arp.c b/arp.c
index 93b22c5..53334da 100644
--- a/arp.c
+++ b/arp.c
@@ -72,7 +72,7 @@ int arp(const struct ctx *c, const struct pool *p)
ah->ar_op = htons(ARPOP_REPLY);
memcpy(am->tha, am->sha, sizeof(am->tha));
- memcpy(am->sha, c->mac, sizeof(am->sha));
+ memcpy(am->sha, c->our_tap_mac, sizeof(am->sha));
memcpy(swap, am->tip, sizeof(am->tip));
memcpy(am->tip, am->sip, sizeof(am->tip));
@@ -80,7 +80,7 @@ int arp(const struct ctx *c, const struct pool *p)
l2len = sizeof(*eh) + sizeof(*ah) + sizeof(*am);
memcpy(eh->h_dest, eh->h_source, sizeof(eh->h_dest));
- memcpy(eh->h_source, c->mac, sizeof(eh->h_source));
+ memcpy(eh->h_source, c->our_tap_mac, sizeof(eh->h_source));
tap_send_single(c, eh, l2len);
diff --git a/conf.c b/conf.c
index 830f91a..750fdc8 100644
--- a/conf.c
+++ b/conf.c
@@ -956,7 +956,7 @@ static void conf_print(const struct ctx *c)
info("Namespace interface: %s", c->pasta_ifn);
info("MAC:");
- info(" host: %s", eth_ntop(c->mac, bufmac, sizeof(bufmac)));
+ info(" host: %s", eth_ntop(c->our_tap_mac, bufmac, sizeof(bufmac)));
if (c->ifi4) {
if (!c->no_dhcp) {
@@ -1289,7 +1289,7 @@ void conf(struct ctx *c, int argc, char **argv)
if (c->mode != MODE_PASTA)
die("--ns-mac-addr is for pasta mode only");
- parse_mac(c->mac_guest, optarg);
+ parse_mac(c->guest_mac, optarg);
break;
case 5:
if (c->mode != MODE_PASTA)
@@ -1500,7 +1500,7 @@ void conf(struct ctx *c, int argc, char **argv)
break;
case 'M':
- parse_mac(c->mac, optarg);
+ parse_mac(c->our_tap_mac, optarg);
break;
case 'g':
if (inet_pton(AF_INET6, optarg, &c->ip6.gw) &&
@@ -1629,9 +1629,9 @@ void conf(struct ctx *c, int argc, char **argv)
nl_sock_init(c, false);
if (!v6_only)
- c->ifi4 = conf_ip4(ifi4, &c->ip4, c->mac);
+ c->ifi4 = conf_ip4(ifi4, &c->ip4, c->our_tap_mac);
if (!v4_only)
- c->ifi6 = conf_ip6(ifi6, &c->ip6, c->mac);
+ c->ifi6 = conf_ip6(ifi6, &c->ip6, c->our_tap_mac);
if ((!c->ifi4 && !c->ifi6) ||
(*c->ip4.ifname_out && !c->ifi4) ||
(*c->ip6.ifname_out && !c->ifi6))
diff --git a/dhcpv6.c b/dhcpv6.c
index 7dcca2a..bbed41d 100644
--- a/dhcpv6.c
+++ b/dhcpv6.c
@@ -574,8 +574,10 @@ void dhcpv6_init(const struct ctx *c)
resp.server_id.duid_time = duid_time;
resp_not_on_link.server_id.duid_time = duid_time;
- memcpy(resp.server_id.duid_lladdr, c->mac, sizeof(c->mac));
- memcpy(resp_not_on_link.server_id.duid_lladdr, c->mac, sizeof(c->mac));
+ memcpy(resp.server_id.duid_lladdr,
+ c->our_tap_mac, sizeof(c->our_tap_mac));
+ memcpy(resp_not_on_link.server_id.duid_lladdr,
+ c->our_tap_mac, sizeof(c->our_tap_mac));
resp.ia_addr.addr = c->ip6.addr;
}
diff --git a/ndp.c b/ndp.c
index 6dcb487..9c0fef4 100644
--- a/ndp.c
+++ b/ndp.c
@@ -247,7 +247,7 @@ int ndp(struct ctx *c, const struct icmp6hdr *ih, const struct in6_addr *saddr,
memcpy(&na.target_addr, &ns->target_addr,
sizeof(na.target_addr));
- memcpy(na.target_l2_addr.mac, c->mac, ETH_ALEN);
+ memcpy(na.target_l2_addr.mac, c->our_tap_mac, ETH_ALEN);
} else if (ih->icmp6_type == RS) {
size_t dns_s_len = 0;
@@ -331,7 +331,7 @@ int ndp(struct ctx *c, const struct icmp6hdr *ih, const struct in6_addr *saddr,
}
dns_done:
- memcpy(&ra.source_ll.mac, c->mac, ETH_ALEN);
+ memcpy(&ra.source_ll.mac, c->our_tap_mac, ETH_ALEN);
} else {
return 1;
}
diff --git a/passt.c b/passt.c
index 4b3c306..9637483 100644
--- a/passt.c
+++ b/passt.c
@@ -272,7 +272,7 @@ int main(int argc, char **argv)
if ((!c.no_udp && udp_init(&c)) || (!c.no_tcp && tcp_init(&c)))
exit(EXIT_FAILURE);
- proto_update_l2_buf(c.mac_guest, c.mac);
+ proto_update_l2_buf(c.guest_mac, c.our_tap_mac);
if (c.ifi4 && !c.no_dhcp)
dhcp_init();
diff --git a/passt.h b/passt.h
index ef68403..fe3e47d 100644
--- a/passt.h
+++ b/passt.h
@@ -172,8 +172,8 @@ struct ip6_ctx {
* @epollfd: File descriptor for epoll instance
* @fd_tap_listen: File descriptor for listening AF_UNIX socket, if any
* @fd_tap: AF_UNIX socket, tuntap device, or pre-opened socket
- * @mac: Host MAC address
- * @mac_guest: MAC address of guest or namespace, seen or configured
+ * @our_tap_mac: Pasta/passt's MAC on the tap link
+ * @guest_mac: MAC address of guest or namespace, seen or configured
* @hash_secret: 128-bit secret for siphash functions
* @ifi4: Index of template interface for IPv4, 0 if IPv4 disabled
* @ip: IPv4 configuration
@@ -226,8 +226,8 @@ struct ctx {
int epollfd;
int fd_tap_listen;
int fd_tap;
- unsigned char mac[ETH_ALEN];
- unsigned char mac_guest[ETH_ALEN];
+ unsigned char our_tap_mac[ETH_ALEN];
+ unsigned char guest_mac[ETH_ALEN];
uint64_t hash_secret[2];
unsigned int ifi4;
diff --git a/pasta.c b/pasta.c
index 1142f03..5f897d3 100644
--- a/pasta.c
+++ b/pasta.c
@@ -294,10 +294,10 @@ void pasta_ns_conf(struct ctx *c)
strerror(-rc));
/* Get or set MAC in target namespace */
- if (MAC_IS_ZERO(c->mac_guest))
- nl_link_get_mac(nl_sock_ns, c->pasta_ifi, c->mac_guest);
+ if (MAC_IS_ZERO(c->guest_mac))
+ nl_link_get_mac(nl_sock_ns, c->pasta_ifi, c->guest_mac);
else
- rc = nl_link_set_mac(nl_sock_ns, c->pasta_ifi, c->mac_guest);
+ rc = nl_link_set_mac(nl_sock_ns, c->pasta_ifi, c->guest_mac);
if (rc < 0)
die("Couldn't set MAC address in namespace: %s",
strerror(-rc));
@@ -392,7 +392,7 @@ void pasta_ns_conf(struct ctx *c)
}
}
- proto_update_l2_buf(c->mac_guest, NULL);
+ proto_update_l2_buf(c->guest_mac, NULL);
}
/**
diff --git a/tap.c b/tap.c
index 87be3a6..852d837 100644
--- a/tap.c
+++ b/tap.c
@@ -118,8 +118,8 @@ static void *tap_push_l2h(const struct ctx *c, void *buf, uint16_t proto)
struct ethhdr *eh = (struct ethhdr *)buf;
/* TODO: ARP table lookup */
- memcpy(eh->h_dest, c->mac_guest, ETH_ALEN);
- memcpy(eh->h_source, c->mac, ETH_ALEN);
+ memcpy(eh->h_dest, c->guest_mac, ETH_ALEN);
+ memcpy(eh->h_source, c->our_tap_mac, ETH_ALEN);
eh->h_proto = ntohs(proto);
return eh + 1;
}
@@ -946,9 +946,9 @@ void tap_add_packet(struct ctx *c, ssize_t l2len, char *p)
eh = (struct ethhdr *)p;
- if (memcmp(c->mac_guest, eh->h_source, ETH_ALEN)) {
- memcpy(c->mac_guest, eh->h_source, ETH_ALEN);
- proto_update_l2_buf(c->mac_guest, NULL);
+ if (memcmp(c->guest_mac, eh->h_source, ETH_ALEN)) {
+ memcpy(c->guest_mac, eh->h_source, ETH_ALEN);
+ proto_update_l2_buf(c->guest_mac, NULL);
}
switch (ntohs(eh->h_proto)) {
@@ -1337,6 +1337,6 @@ void tap_sock_init(struct ctx *c)
* sends us packets. Use the broadcast address so that our
* first packets will reach it.
*/
- memset(&c->mac_guest, 0xff, sizeof(c->mac_guest));
+ memset(&c->guest_mac, 0xff, sizeof(c->guest_mac));
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-19 21:52:27 +0000