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-rw-r--r--conf.c14
-rw-r--r--fwd.c24
-rw-r--r--udp.c42
-rw-r--r--udp.h14
4 files changed, 27 insertions, 67 deletions
diff --git a/conf.c b/conf.c
index 629eb89..3cf9ed8 100644
--- a/conf.c
+++ b/conf.c
@@ -1248,7 +1248,7 @@ void conf(struct ctx *c, int argc, char **argv)
}
c->tcp.fwd_in.mode = c->tcp.fwd_out.mode = FWD_UNSET;
- c->udp.fwd_in.f.mode = c->udp.fwd_out.f.mode = FWD_UNSET;
+ c->udp.fwd_in.mode = c->udp.fwd_out.mode = FWD_UNSET;
do {
name = getopt_long(argc, argv, optstring, options, NULL);
@@ -1664,7 +1664,7 @@ void conf(struct ctx *c, int argc, char **argv)
if (name == 't')
conf_ports(c, name, optarg, &c->tcp.fwd_in);
else if (name == 'u')
- conf_ports(c, name, optarg, &c->udp.fwd_in.f);
+ conf_ports(c, name, optarg, &c->udp.fwd_in);
} while (name != -1);
if (c->mode == MODE_PASTA)
@@ -1699,7 +1699,7 @@ void conf(struct ctx *c, int argc, char **argv)
if (name == 'T')
conf_ports(c, name, optarg, &c->tcp.fwd_out);
else if (name == 'U')
- conf_ports(c, name, optarg, &c->udp.fwd_out.f);
+ conf_ports(c, name, optarg, &c->udp.fwd_out);
} while (name != -1);
if (!c->ifi4)
@@ -1726,10 +1726,10 @@ void conf(struct ctx *c, int argc, char **argv)
c->tcp.fwd_in.mode = fwd_default;
if (!c->tcp.fwd_out.mode)
c->tcp.fwd_out.mode = fwd_default;
- if (!c->udp.fwd_in.f.mode)
- c->udp.fwd_in.f.mode = fwd_default;
- if (!c->udp.fwd_out.f.mode)
- c->udp.fwd_out.f.mode = fwd_default;
+ if (!c->udp.fwd_in.mode)
+ c->udp.fwd_in.mode = fwd_default;
+ if (!c->udp.fwd_out.mode)
+ c->udp.fwd_out.mode = fwd_default;
fwd_scan_ports_init(c);
diff --git a/fwd.c b/fwd.c
index a70ebfd..8c1f3d9 100644
--- a/fwd.c
+++ b/fwd.c
@@ -129,18 +129,18 @@ void fwd_scan_ports_init(struct ctx *c)
c->tcp.fwd_in.scan4 = c->tcp.fwd_in.scan6 = -1;
c->tcp.fwd_out.scan4 = c->tcp.fwd_out.scan6 = -1;
- c->udp.fwd_in.f.scan4 = c->udp.fwd_in.f.scan6 = -1;
- c->udp.fwd_out.f.scan4 = c->udp.fwd_out.f.scan6 = -1;
+ c->udp.fwd_in.scan4 = c->udp.fwd_in.scan6 = -1;
+ c->udp.fwd_out.scan4 = c->udp.fwd_out.scan6 = -1;
if (c->tcp.fwd_in.mode == FWD_AUTO) {
c->tcp.fwd_in.scan4 = open_in_ns(c, "/proc/net/tcp", flags);
c->tcp.fwd_in.scan6 = open_in_ns(c, "/proc/net/tcp6", flags);
fwd_scan_ports_tcp(&c->tcp.fwd_in, &c->tcp.fwd_out);
}
- if (c->udp.fwd_in.f.mode == FWD_AUTO) {
- c->udp.fwd_in.f.scan4 = open_in_ns(c, "/proc/net/udp", flags);
- c->udp.fwd_in.f.scan6 = open_in_ns(c, "/proc/net/udp6", flags);
- fwd_scan_ports_udp(&c->udp.fwd_in.f, &c->udp.fwd_out.f,
+ if (c->udp.fwd_in.mode == FWD_AUTO) {
+ c->udp.fwd_in.scan4 = open_in_ns(c, "/proc/net/udp", flags);
+ c->udp.fwd_in.scan6 = open_in_ns(c, "/proc/net/udp6", flags);
+ fwd_scan_ports_udp(&c->udp.fwd_in, &c->udp.fwd_out,
&c->tcp.fwd_in, &c->tcp.fwd_out);
}
if (c->tcp.fwd_out.mode == FWD_AUTO) {
@@ -148,10 +148,10 @@ void fwd_scan_ports_init(struct ctx *c)
c->tcp.fwd_out.scan6 = open("/proc/net/tcp6", flags);
fwd_scan_ports_tcp(&c->tcp.fwd_out, &c->tcp.fwd_in);
}
- if (c->udp.fwd_out.f.mode == FWD_AUTO) {
- c->udp.fwd_out.f.scan4 = open("/proc/net/udp", flags);
- c->udp.fwd_out.f.scan6 = open("/proc/net/udp6", flags);
- fwd_scan_ports_udp(&c->udp.fwd_out.f, &c->udp.fwd_in.f,
+ if (c->udp.fwd_out.mode == FWD_AUTO) {
+ c->udp.fwd_out.scan4 = open("/proc/net/udp", flags);
+ c->udp.fwd_out.scan6 = open("/proc/net/udp6", flags);
+ fwd_scan_ports_udp(&c->udp.fwd_out, &c->udp.fwd_in,
&c->tcp.fwd_out, &c->tcp.fwd_in);
}
}
@@ -242,7 +242,7 @@ uint8_t fwd_nat_from_splice(const struct ctx *c, uint8_t proto,
if (proto == IPPROTO_TCP)
tgt->eport += c->tcp.fwd_out.delta[tgt->eport];
else if (proto == IPPROTO_UDP)
- tgt->eport += c->udp.fwd_out.f.delta[tgt->eport];
+ tgt->eport += c->udp.fwd_out.delta[tgt->eport];
/* Let the kernel pick a host side source port */
tgt->fport = 0;
@@ -271,7 +271,7 @@ uint8_t fwd_nat_from_host(const struct ctx *c, uint8_t proto,
if (proto == IPPROTO_TCP)
tgt->eport += c->tcp.fwd_in.delta[tgt->eport];
else if (proto == IPPROTO_UDP)
- tgt->eport += c->udp.fwd_in.f.delta[tgt->eport];
+ tgt->eport += c->udp.fwd_in.delta[tgt->eport];
if (c->mode == MODE_PASTA && inany_is_loopback(&ini->eaddr) &&
(proto == IPPROTO_TCP || proto == IPPROTO_UDP)) {
diff --git a/udp.c b/udp.c
index 0a17d1b..4d612c3 100644
--- a/udp.c
+++ b/udp.c
@@ -206,33 +206,6 @@ void udp_portmap_clear(void)
}
/**
- * udp_invert_portmap() - Compute reverse port translations for return packets
- * @fwd: Port forwarding configuration to compute reverse map for
- */
-static void udp_invert_portmap(struct udp_fwd_ports *fwd)
-{
- unsigned int i;
-
- static_assert(ARRAY_SIZE(fwd->f.delta) == ARRAY_SIZE(fwd->rdelta),
- "Forward and reverse delta arrays must have same size");
- for (i = 0; i < ARRAY_SIZE(fwd->f.delta); i++) {
- in_port_t delta = fwd->f.delta[i];
-
- if (delta) {
- /* Keep rport calculation separate from its usage: we
- * need to perform the sum in in_port_t width (that is,
- * modulo 65536), but C promotion rules would sum the
- * two terms as 'int', if we just open-coded the array
- * index as 'i + delta'.
- */
- in_port_t rport = i + delta;
-
- fwd->rdelta[rport] = NUM_PORTS - delta;
- }
- }
-}
-
-/**
* udp_update_l2_buf() - Update L2 buffers with Ethernet and IPv4 addresses
* @eth_d: Ethernet destination address, NULL if unchanged
* @eth_s: Ethernet source address, NULL if unchanged
@@ -1080,9 +1053,9 @@ static void udp_port_rebind(struct ctx *c, bool outbound)
{
int (*socks)[NUM_PORTS] = outbound ? udp_splice_ns : udp_splice_init;
const uint8_t *fmap
- = outbound ? c->udp.fwd_out.f.map : c->udp.fwd_in.f.map;
+ = outbound ? c->udp.fwd_out.map : c->udp.fwd_in.map;
const uint8_t *rmap
- = outbound ? c->udp.fwd_in.f.map : c->udp.fwd_out.f.map;
+ = outbound ? c->udp.fwd_in.map : c->udp.fwd_out.map;
unsigned port;
for (port = 0; port < NUM_PORTS; port++) {
@@ -1158,14 +1131,14 @@ void udp_timer(struct ctx *c, const struct timespec *now)
ASSERT(!c->no_udp);
if (c->mode == MODE_PASTA) {
- if (c->udp.fwd_out.f.mode == FWD_AUTO) {
- fwd_scan_ports_udp(&c->udp.fwd_out.f, &c->udp.fwd_in.f,
+ if (c->udp.fwd_out.mode == FWD_AUTO) {
+ fwd_scan_ports_udp(&c->udp.fwd_out, &c->udp.fwd_in,
&c->tcp.fwd_out, &c->tcp.fwd_in);
NS_CALL(udp_port_rebind_outbound, c);
}
- if (c->udp.fwd_in.f.mode == FWD_AUTO) {
- fwd_scan_ports_udp(&c->udp.fwd_in.f, &c->udp.fwd_out.f,
+ if (c->udp.fwd_in.mode == FWD_AUTO) {
+ fwd_scan_ports_udp(&c->udp.fwd_in, &c->udp.fwd_out,
&c->tcp.fwd_in, &c->tcp.fwd_out);
udp_port_rebind(c, false);
}
@@ -1184,9 +1157,6 @@ int udp_init(struct ctx *c)
udp_iov_init(c);
- udp_invert_portmap(&c->udp.fwd_in);
- udp_invert_portmap(&c->udp.fwd_out);
-
if (c->mode == MODE_PASTA) {
udp_splice_iov_init();
NS_CALL(udp_port_rebind_outbound, c);
diff --git a/udp.h b/udp.h
index ceaa8c5..c81ef29 100644
--- a/udp.h
+++ b/udp.h
@@ -42,24 +42,14 @@ union udp_epoll_ref {
/**
- * udp_fwd_ports - UDP specific port forwarding configuration
- * @f: Generic forwarding configuration
- * @rdelta: Reversed delta map to translate source ports on return packets
- */
-struct udp_fwd_ports {
- struct fwd_ports f;
- in_port_t rdelta[NUM_PORTS];
-};
-
-/**
* struct udp_ctx - Execution context for UDP
* @fwd_in: Port forwarding configuration for inbound packets
* @fwd_out: Port forwarding configuration for outbound packets
* @timer_run: Timestamp of most recent timer run
*/
struct udp_ctx {
- struct udp_fwd_ports fwd_in;
- struct udp_fwd_ports fwd_out;
+ struct fwd_ports fwd_in;
+ struct fwd_ports fwd_out;
struct timespec timer_run;
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-19 22:18:46 +0000