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Diffstat (limited to 'fwd.c')
-rw-r--r--fwd.c70
1 files changed, 35 insertions, 35 deletions
diff --git a/fwd.c b/fwd.c
index dea36f6..b546bc4 100644
--- a/fwd.c
+++ b/fwd.c
@@ -167,7 +167,7 @@ void fwd_scan_ports_init(struct ctx *c)
static bool is_dns_flow(uint8_t proto, const struct flowside *ini)
{
return ((proto == IPPROTO_UDP) || (proto == IPPROTO_TCP)) &&
- ((ini->fport == 53) || (ini->fport == 853));
+ ((ini->oport == 53) || (ini->oport == 853));
}
/**
@@ -184,33 +184,33 @@ uint8_t fwd_nat_from_tap(const struct ctx *c, uint8_t proto,
const struct flowside *ini, struct flowside *tgt)
{
if (is_dns_flow(proto, ini) &&
- inany_equals4(&ini->faddr, &c->ip4.dns_match))
+ inany_equals4(&ini->oaddr, &c->ip4.dns_match))
tgt->eaddr = inany_from_v4(c->ip4.dns_host);
else if (is_dns_flow(proto, ini) &&
- inany_equals6(&ini->faddr, &c->ip6.dns_match))
+ inany_equals6(&ini->oaddr, &c->ip6.dns_match))
tgt->eaddr.a6 = c->ip6.dns_host;
- else if (!c->no_map_gw && inany_equals4(&ini->faddr, &c->ip4.gw))
+ else if (!c->no_map_gw && inany_equals4(&ini->oaddr, &c->ip4.gw))
tgt->eaddr = inany_loopback4;
- else if (!c->no_map_gw && inany_equals6(&ini->faddr, &c->ip6.gw))
+ else if (!c->no_map_gw && inany_equals6(&ini->oaddr, &c->ip6.gw))
tgt->eaddr = inany_loopback6;
else
- tgt->eaddr = ini->faddr;
+ tgt->eaddr = ini->oaddr;
- tgt->eport = ini->fport;
+ tgt->eport = ini->oport;
/* The relevant addr_out controls the host side source address. This
* may be unspecified, which allows the kernel to pick an address.
*/
if (inany_v4(&tgt->eaddr))
- tgt->faddr = inany_from_v4(c->ip4.addr_out);
+ tgt->oaddr = inany_from_v4(c->ip4.addr_out);
else
- tgt->faddr.a6 = c->ip6.addr_out;
+ tgt->oaddr.a6 = c->ip6.addr_out;
/* Let the kernel pick a host side source port */
- tgt->fport = 0;
+ tgt->oport = 0;
if (proto == IPPROTO_UDP) {
/* But for UDP we preserve the source port */
- tgt->fport = ini->eport;
+ tgt->oport = ini->eport;
}
return PIF_HOST;
@@ -230,13 +230,13 @@ uint8_t fwd_nat_from_splice(const struct ctx *c, uint8_t proto,
const struct flowside *ini, struct flowside *tgt)
{
if (!inany_is_loopback(&ini->eaddr) ||
- (!inany_is_loopback(&ini->faddr) && !inany_is_unspecified(&ini->faddr))) {
+ (!inany_is_loopback(&ini->oaddr) && !inany_is_unspecified(&ini->oaddr))) {
char estr[INANY_ADDRSTRLEN], fstr[INANY_ADDRSTRLEN];
debug("Non loopback address on %s: [%s]:%hu -> [%s]:%hu",
pif_name(PIF_SPLICE),
inany_ntop(&ini->eaddr, estr, sizeof(estr)), ini->eport,
- inany_ntop(&ini->faddr, fstr, sizeof(fstr)), ini->fport);
+ inany_ntop(&ini->oaddr, fstr, sizeof(fstr)), ini->oport);
return PIF_NONE;
}
@@ -248,20 +248,20 @@ uint8_t fwd_nat_from_splice(const struct ctx *c, uint8_t proto,
/* Preserve the specific loopback adddress used, but let the kernel pick
* a source port on the target side
*/
- tgt->faddr = ini->eaddr;
- tgt->fport = 0;
+ tgt->oaddr = ini->eaddr;
+ tgt->oport = 0;
- tgt->eport = ini->fport;
+ tgt->eport = ini->oport;
if (proto == IPPROTO_TCP)
tgt->eport += c->tcp.fwd_out.delta[tgt->eport];
else if (proto == IPPROTO_UDP)
tgt->eport += c->udp.fwd_out.delta[tgt->eport];
/* Let the kernel pick a host side source port */
- tgt->fport = 0;
+ tgt->oport = 0;
if (proto == IPPROTO_UDP)
/* But for UDP preserve the source port */
- tgt->fport = ini->eport;
+ tgt->oport = ini->eport;
return PIF_HOST;
}
@@ -280,7 +280,7 @@ uint8_t fwd_nat_from_host(const struct ctx *c, uint8_t proto,
const struct flowside *ini, struct flowside *tgt)
{
/* Common for spliced and non-spliced cases */
- tgt->eport = ini->fport;
+ tgt->eport = ini->oport;
if (proto == IPPROTO_TCP)
tgt->eport += c->tcp.fwd_in.delta[tgt->eport];
else if (proto == IPPROTO_UDP)
@@ -293,11 +293,11 @@ uint8_t fwd_nat_from_host(const struct ctx *c, uint8_t proto,
/* Preserve the specific loopback adddress used, but let the
* kernel pick a source port on the target side
*/
- tgt->faddr = ini->eaddr;
- tgt->fport = 0;
+ tgt->oaddr = ini->eaddr;
+ tgt->oport = 0;
if (proto == IPPROTO_UDP)
/* But for UDP preserve the source port */
- tgt->fport = ini->eport;
+ tgt->oport = ini->eport;
if (inany_v4(&ini->eaddr))
tgt->eaddr = inany_loopback4;
@@ -307,26 +307,26 @@ uint8_t fwd_nat_from_host(const struct ctx *c, uint8_t proto,
return PIF_SPLICE;
}
- tgt->faddr = ini->eaddr;
- tgt->fport = ini->eport;
+ tgt->oaddr = ini->eaddr;
+ tgt->oport = ini->eport;
- if (inany_is_loopback4(&tgt->faddr) ||
- inany_is_unspecified4(&tgt->faddr) ||
- inany_equals4(&tgt->faddr, &c->ip4.addr_seen)) {
- tgt->faddr = inany_from_v4(c->ip4.gw);
- } else if (inany_is_loopback6(&tgt->faddr) ||
- inany_equals6(&tgt->faddr, &c->ip6.addr_seen) ||
- inany_equals6(&tgt->faddr, &c->ip6.addr)) {
+ if (inany_is_loopback4(&tgt->oaddr) ||
+ inany_is_unspecified4(&tgt->oaddr) ||
+ inany_equals4(&tgt->oaddr, &c->ip4.addr_seen)) {
+ tgt->oaddr = inany_from_v4(c->ip4.gw);
+ } else if (inany_is_loopback6(&tgt->oaddr) ||
+ inany_equals6(&tgt->oaddr, &c->ip6.addr_seen) ||
+ inany_equals6(&tgt->oaddr, &c->ip6.addr)) {
if (IN6_IS_ADDR_LINKLOCAL(&c->ip6.gw))
- tgt->faddr.a6 = c->ip6.gw;
+ tgt->oaddr.a6 = c->ip6.gw;
else
- tgt->faddr.a6 = c->ip6.addr_ll;
+ tgt->oaddr.a6 = c->ip6.addr_ll;
}
- if (inany_v4(&tgt->faddr)) {
+ if (inany_v4(&tgt->oaddr)) {
tgt->eaddr = inany_from_v4(c->ip4.addr_seen);
} else {
- if (inany_is_linklocal6(&tgt->faddr))
+ if (inany_is_linklocal6(&tgt->oaddr))
tgt->eaddr.a6 = c->ip6.addr_ll_seen;
else
tgt->eaddr.a6 = c->ip6.addr_seen;
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-19 16:41:24 +0000