EPOLL_TYPE_UDP is now only used for "listening" sockets; long lived
sockets which can initiate new flows. Rename to EPOLL_TYPE_UDP_LISTEN
and associated functions to match. Along with that, remove the .orig
field from union udp_listen_epoll_ref, since it is now always true.
Signed-off-by: David Gibson <david(a)gibson.dropbear.id.au>
---
epoll_type.h | 4 ++--
passt.c | 6 +++---
passt.h | 2 +-
udp.c | 25 +++++++++++--------------
udp.h | 12 +++++-------
util.c | 2 +-
6 files changed, 23 insertions(+), 28 deletions(-)
diff --git a/epoll_type.h b/epoll_type.h
index 7a752ed1..0ad1efa0 100644
--- a/epoll_type.h
+++ b/epoll_type.h
@@ -20,8 +20,8 @@ enum epoll_type {
EPOLL_TYPE_TCP_LISTEN,
/* timerfds used for TCP timers */
EPOLL_TYPE_TCP_TIMER,
- /* UDP sockets */
- EPOLL_TYPE_UDP,
+ /* UDP "listening" sockets */
+ EPOLL_TYPE_UDP_LISTEN,
/* UDP socket for replies on a specific flow */
EPOLL_TYPE_UDP_REPLY,
/* ICMP/ICMPv6 ping sockets */
diff --git a/passt.c b/passt.c
index f9405bee..eed74ec9 100644
--- a/passt.c
+++ b/passt.c
@@ -66,7 +66,7 @@ char *epoll_type_str[] = {
[EPOLL_TYPE_TCP_SPLICE] = "connected spliced TCP socket",
[EPOLL_TYPE_TCP_LISTEN] = "listening TCP socket",
[EPOLL_TYPE_TCP_TIMER] = "TCP timer",
- [EPOLL_TYPE_UDP] = "UDP socket",
+ [EPOLL_TYPE_UDP_LISTEN] = "listening UDP socket",
[EPOLL_TYPE_UDP_REPLY] = "UDP reply socket",
[EPOLL_TYPE_PING] = "ICMP/ICMPv6 ping socket",
[EPOLL_TYPE_NSQUIT_INOTIFY] = "namespace inotify watch",
@@ -347,8 +347,8 @@ loop:
case EPOLL_TYPE_TCP_TIMER:
tcp_timer_handler(&c, ref);
break;
- case EPOLL_TYPE_UDP:
- udp_buf_sock_handler(&c, ref, eventmask, &now);
+ case EPOLL_TYPE_UDP_LISTEN:
+ udp_listen_sock_handler(&c, ref, eventmask, &now);
break;
case EPOLL_TYPE_UDP_REPLY:
udp_reply_sock_handler(&c, ref, eventmask, &now);
diff --git a/passt.h b/passt.h
index 0d76b498..4cc2b6f0 100644
--- a/passt.h
+++ b/passt.h
@@ -48,7 +48,7 @@ union epoll_ref {
uint32_t flow;
flow_sidx_t flowside;
union tcp_listen_epoll_ref tcp_listen;
- union udp_epoll_ref udp;
+ union udp_listen_epoll_ref udp;
uint32_t data;
int nsdir_fd;
};
diff --git a/udp.c b/udp.c
index 8affcf12..58cf6b93 100644
--- a/udp.c
+++ b/udp.c
@@ -420,10 +420,7 @@ static flow_sidx_t udp_flow_from_sock(const struct ctx *c, union
epoll_ref ref,
union flow *flow;
flow_sidx_t sidx;
- ASSERT(ref.type == EPOLL_TYPE_UDP);
-
- if (!ref.udp.orig)
- return FLOW_SIDX_NONE;
+ ASSERT(ref.type == EPOLL_TYPE_UDP_LISTEN);
sidx = flow_lookup_sa(c, IPPROTO_UDP, ref.udp.pif, &meta->s_in, ref.udp.port);
if ((uflow = udp_at_sidx(sidx))) {
@@ -604,7 +601,7 @@ int udp_sock_recv(const struct ctx *c, int s, uint32_t events,
}
/**
- * udp_buf_sock_handler() - Handle new data from socket
+ * udp_listen_sock_handler() - Handle new data from socket
* @c: Execution context
* @ref: epoll reference
* @events: epoll events bitmap
@@ -612,8 +609,8 @@ int udp_sock_recv(const struct ctx *c, int s, uint32_t events,
*
* #syscalls recvmmsg
*/
-void udp_buf_sock_handler(const struct ctx *c, union epoll_ref ref, uint32_t events,
- const struct timespec *now)
+void udp_listen_sock_handler(const struct ctx *c, union epoll_ref ref,
+ uint32_t events, const struct timespec *now)
{
struct mmsghdr *mmh_recv = ref.udp.v6 ? udp6_mh_recv : udp4_mh_recv;
int n, i;
@@ -881,7 +878,7 @@ int udp_tap_handler(const struct ctx *c, uint8_t pif,
int udp_sock_init(const struct ctx *c, int ns, sa_family_t af,
const void *addr, const char *ifname, in_port_t port)
{
- union udp_epoll_ref uref = { .orig = true, .port = port };
+ union udp_listen_epoll_ref uref = { .port = port };
int s, r4 = FD_REF_MAX + 1, r6 = FD_REF_MAX + 1;
if (ns)
@@ -893,12 +890,12 @@ int udp_sock_init(const struct ctx *c, int ns, sa_family_t af,
uref.v6 = 0;
if (!ns) {
- r4 = s = sock_l4(c, AF_INET, EPOLL_TYPE_UDP, addr,
- ifname, port, uref.u32);
+ r4 = s = sock_l4(c, AF_INET, EPOLL_TYPE_UDP_LISTEN,
+ addr, ifname, port, uref.u32);
udp_splice_init[V4][port] = s < 0 ? -1 : s;
} else {
- r4 = s = sock_l4(c, AF_INET, EPOLL_TYPE_UDP,
+ r4 = s = sock_l4(c, AF_INET, EPOLL_TYPE_UDP_LISTEN,
&in4addr_loopback,
ifname, port, uref.u32);
udp_splice_ns[V4][port] = s < 0 ? -1 : s;
@@ -909,12 +906,12 @@ int udp_sock_init(const struct ctx *c, int ns, sa_family_t af,
uref.v6 = 1;
if (!ns) {
- r6 = s = sock_l4(c, AF_INET6, EPOLL_TYPE_UDP, addr,
- ifname, port, uref.u32);
+ r6 = s = sock_l4(c, AF_INET6, EPOLL_TYPE_UDP_LISTEN,
+ addr, ifname, port, uref.u32);
udp_splice_init[V6][port] = s < 0 ? -1 : s;
} else {
- r6 = s = sock_l4(c, AF_INET6, EPOLL_TYPE_UDP,
+ r6 = s = sock_l4(c, AF_INET6, EPOLL_TYPE_UDP_LISTEN,
&in6addr_loopback,
ifname, port, uref.u32);
udp_splice_ns[V6][port] = s < 0 ? -1 : s;
diff --git a/udp.h b/udp.h
index ba803d51..18a86892 100644
--- a/udp.h
+++ b/udp.h
@@ -9,8 +9,8 @@
#define UDP_TIMER_INTERVAL 1000 /* ms */
void udp_portmap_clear(void);
-void udp_buf_sock_handler(const struct ctx *c, union epoll_ref ref,
- uint32_t events, const struct timespec *now);
+void udp_listen_sock_handler(const struct ctx *c, union epoll_ref ref,
+ uint32_t events, const struct timespec *now);
void udp_reply_sock_handler(const struct ctx *c, union epoll_ref ref,
uint32_t events, const struct timespec *now);
int udp_tap_handler(const struct ctx *c, uint8_t pif,
@@ -23,21 +23,19 @@ void udp_timer(struct ctx *c, const struct timespec *now);
void udp_update_l2_buf(const unsigned char *eth_d, const unsigned char *eth_s);
/**
- * union udp_epoll_ref - epoll reference portion for TCP connections
+ * union udp_listen_epoll_ref - epoll reference for "listening" UDP sockets
* @port: Source port for connected sockets, bound port otherwise
* @pif: pif for this socket
* @bound: Set if this file descriptor is a bound socket
* @splice: Set if descriptor packets to be "spliced"
- * @orig: Set if a spliced socket which can originate "connections"
* @v6: Set for IPv6 sockets or connections
* @u32: Opaque u32 value of reference
*/
-union udp_epoll_ref {
+union udp_listen_epoll_ref {
struct {
in_port_t port;
uint8_t pif;
- bool orig:1,
- v6:1;
+ bool v6:1;
};
uint32_t u32;
};
diff --git a/util.c b/util.c
index 7c57ab15..82b0028b 100644
--- a/util.c
+++ b/util.c
@@ -60,7 +60,7 @@ int sock_l4_sa(const struct ctx *c, enum epoll_type type,
proto = IPPROTO_TCP;
socktype = SOCK_STREAM | SOCK_NONBLOCK;
break;
- case EPOLL_TYPE_UDP:
+ case EPOLL_TYPE_UDP_LISTEN:
case EPOLL_TYPE_UDP_REPLY:
proto = IPPROTO_UDP;
socktype = SOCK_DGRAM | SOCK_NONBLOCK;
--
2.45.2