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connectd: reorder functions again for better grouping (MOVEONLY) 

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
fee-tracking2
Rusty Russell 6 years ago
parent
4de2b362f5
commit
2bdedf5582
1 changed files with 261 additions and 261 deletions
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  1. 522
      connectd/connectd.c

522
connectd/connectd.c
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@ -315,54 +315,6 @@ struct io_plan *peer_connected(struct io_conn *conn,
return io_close_taken_fd(conn);
}
struct listen_fd {
int fd;
/* If we bind() IPv6 then IPv4 to same port, we *may* fail to listen()
* on the IPv4 socket: under Linux, by default, the IPv6 listen()
* covers IPv4 too. Normally we'd consider failing to listen on a
* port to be fatal, so we note this when setting up addresses. */
bool mayfail;
};
static int make_listen_fd(int domain, void *addr, socklen_t len, bool mayfail)
{
int fd = socket(domain, SOCK_STREAM, 0);
if (fd < 0) {
if (!mayfail)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Failed to create %u socket: %s",
domain, strerror(errno));
status_trace("Failed to create %u socket: %s",
domain, strerror(errno));
return -1;
}
if (addr) {
int on = 1;
/* Re-use, please.. */
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)))
status_unusual("Failed setting socket reuse: %s",
strerror(errno));
if (bind(fd, addr, len) != 0) {
if (!mayfail)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Failed to bind on %u socket: %s",
domain, strerror(errno));
status_trace("Failed to create %u socket: %s",
domain, strerror(errno));
goto fail;
}
}
return fd;
fail:
close_noerr(fd);
return -1;
}
static struct io_plan *handshake_in_success(struct io_conn *conn,
const struct pubkey *id,
const struct wireaddr_internal *addr,
@ -411,6 +363,228 @@ static struct io_plan *connection_in(struct io_conn *conn, struct daemon *daemon
handshake_in_success, daemon);
}
static struct io_plan *handshake_out_success(struct io_conn *conn,
const struct pubkey *id,
const struct wireaddr_internal *addr,
const struct crypto_state *cs,
struct connecting *connect)
{
connect->connstate = "Exchanging init messages";
status_trace("Connect OUT to %s",
type_to_string(tmpctx, struct pubkey, id));
return peer_exchange_initmsg(conn, connect->daemon, cs, id, addr);
}
struct io_plan *connection_out(struct io_conn *conn, struct connecting *connect)
{
/* FIXME: Timeout */
status_trace("Connected out for %s",
type_to_string(tmpctx, struct pubkey, &connect->id));
connect->connstate = "Cryptographic handshake";
return initiator_handshake(conn, &connect->daemon->id, &connect->id,
&connect->addrs[connect->addrnum],
handshake_out_success, connect);
}
static void PRINTF_FMT(5,6)
connect_failed(struct daemon *daemon,
const struct pubkey *id,
u32 seconds_waited,
const struct wireaddr_internal *addrhint,
const char *errfmt, ...)
{
u8 *msg;
va_list ap;
char *err;
u32 wait_seconds;
va_start(ap, errfmt);
err = tal_vfmt(tmpctx, errfmt, ap);
va_end(ap);
/* Wait twice as long to reconnect, between min and max. */
wait_seconds = seconds_waited * 2;
if (wait_seconds > MAX_WAIT_SECONDS)
wait_seconds = MAX_WAIT_SECONDS;
if (wait_seconds < INITIAL_WAIT_SECONDS)
wait_seconds = INITIAL_WAIT_SECONDS;
/* Tell any connect command what happened. */
msg = towire_connectctl_connect_failed(NULL, id, err, wait_seconds,
addrhint);
daemon_conn_send(&daemon->master, take(msg));
status_trace("Failed connected out for %s: %s",
type_to_string(tmpctx, struct pubkey, id),
err);
}
static void destroy_io_conn(struct io_conn *conn, struct connecting *connect)
{
tal_append_fmt(&connect->errors,
"%s: %s: %s. ",
type_to_string(tmpctx, struct wireaddr_internal,
&connect->addrs[connect->addrnum]),
connect->connstate, strerror(errno));
connect->addrnum++;
try_connect_one_addr(connect);
}
static struct io_plan *conn_init(struct io_conn *conn,
struct connecting *connect)
{
struct addrinfo *ai = NULL;
const struct wireaddr_internal *addr = &connect->addrs[connect->addrnum];
switch (addr->itype) {
case ADDR_INTERNAL_SOCKNAME:
ai = wireaddr_internal_to_addrinfo(tmpctx, addr);
break;
case ADDR_INTERNAL_ALLPROTO:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect to all protocols");
break;
case ADDR_INTERNAL_AUTOTOR:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect to autotor address");
break;
case ADDR_INTERNAL_FORPROXY:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect to forproxy address");
break;
case ADDR_INTERNAL_WIREADDR:
/* If it was a Tor address, we wouldn't be here. */
ai = wireaddr_to_addrinfo(tmpctx, &addr->u.wireaddr);
break;
}
assert(ai);
io_set_finish(conn, destroy_io_conn, connect);
return io_connect(conn, ai, connection_out, connect);
}
static struct io_plan *conn_proxy_init(struct io_conn *conn,
struct connecting *connect)
{
const char *host = NULL;
u16 port;
const struct wireaddr_internal *addr = &connect->addrs[connect->addrnum];
switch (addr->itype) {
case ADDR_INTERNAL_FORPROXY:
host = addr->u.unresolved.name;
port = addr->u.unresolved.port;
break;
case ADDR_INTERNAL_WIREADDR:
host = fmt_wireaddr_without_port(tmpctx, &addr->u.wireaddr);
port = addr->u.wireaddr.port;
break;
case ADDR_INTERNAL_SOCKNAME:
case ADDR_INTERNAL_ALLPROTO:
case ADDR_INTERNAL_AUTOTOR:
break;
}
if (!host)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect to %u address", addr->itype);
io_set_finish(conn, destroy_io_conn, connect);
return io_tor_connect(conn, connect->daemon->proxyaddr, host, port,
connect);
}
static void try_connect_one_addr(struct connecting *connect)
{
int fd, af;
bool use_proxy = connect->daemon->use_proxy_always;
const struct wireaddr_internal *addr = &connect->addrs[connect->addrnum];
if (connect->addrnum == tal_count(connect->addrs)) {
connect_failed(connect->daemon, &connect->id,
connect->seconds_waited,
connect->addrhint, "%s", connect->errors);
tal_free(connect);
return;
}
/* Might not even be able to create eg. IPv6 sockets */
af = -1;
switch (addr->itype) {
case ADDR_INTERNAL_SOCKNAME:
af = AF_LOCAL;
/* Local sockets don't use tor proxy */
use_proxy = false;
break;
case ADDR_INTERNAL_ALLPROTO:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect ALLPROTO");
case ADDR_INTERNAL_AUTOTOR:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect AUTOTOR");
case ADDR_INTERNAL_FORPROXY:
use_proxy = true;
break;
case ADDR_INTERNAL_WIREADDR:
switch (addr->u.wireaddr.type) {
case ADDR_TYPE_TOR_V2:
case ADDR_TYPE_TOR_V3:
use_proxy = true;
break;
case ADDR_TYPE_IPV4:
af = AF_INET;
break;
case ADDR_TYPE_IPV6:
af = AF_INET6;
break;
case ADDR_TYPE_PADDING:
break;
}
}
/* If we have to use proxy but we don't have one, we fail. */
if (use_proxy) {
if (!connect->daemon->proxyaddr) {
status_debug("Need proxy");
af = -1;
} else
af = connect->daemon->proxyaddr->ai_family;
}
if (af == -1) {
fd = -1;
errno = EPROTONOSUPPORT;
} else
fd = socket(af, SOCK_STREAM, 0);
if (fd < 0) {
tal_append_fmt(&connect->errors,
"%s: opening %i socket gave %s. ",
type_to_string(tmpctx, struct wireaddr_internal,
addr),
af, strerror(errno));
connect->addrnum++;
try_connect_one_addr(connect);
return;
}
if (use_proxy)
io_new_conn(connect, fd, conn_proxy_init, connect);
else
io_new_conn(connect, fd, conn_init, connect);
}
struct listen_fd {
int fd;
/* If we bind() IPv6 then IPv4 to same port, we *may* fail to listen()
* on the IPv4 socket: under Linux, by default, the IPv6 listen()
* covers IPv4 too. Normally we'd consider failing to listen on a
* port to be fatal, so we note this when setting up addresses. */
bool mayfail;
};
static void add_listen_fd(struct daemon *daemon, int fd, bool mayfail)
{
struct listen_fd *l = tal_arr_expand(&daemon->listen_fds);
@ -418,6 +592,45 @@ static void add_listen_fd(struct daemon *daemon, int fd, bool mayfail)
l->mayfail = mayfail;
}
static int make_listen_fd(int domain, void *addr, socklen_t len, bool mayfail)
{
int fd = socket(domain, SOCK_STREAM, 0);
if (fd < 0) {
if (!mayfail)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Failed to create %u socket: %s",
domain, strerror(errno));
status_trace("Failed to create %u socket: %s",
domain, strerror(errno));
return -1;
}
if (addr) {
int on = 1;
/* Re-use, please.. */
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)))
status_unusual("Failed setting socket reuse: %s",
strerror(errno));
if (bind(fd, addr, len) != 0) {
if (!mayfail)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Failed to bind on %u socket: %s",
domain, strerror(errno));
status_trace("Failed to create %u socket: %s",
domain, strerror(errno));
goto fail;
}
}
return fd;
fail:
close_noerr(fd);
return -1;
}
/* Return true if it created socket successfully. */
static bool handle_wireaddr_listen(struct daemon *daemon,
const struct wireaddr *wireaddr,
@ -736,138 +949,6 @@ static struct io_plan *connect_activate(struct daemon_conn *master,
return daemon_conn_read_next(master->conn, master);
}
static struct io_plan *handshake_out_success(struct io_conn *conn,
const struct pubkey *id,
const struct wireaddr_internal *addr,
const struct crypto_state *cs,
struct connecting *connect)
{
connect->connstate = "Exchanging init messages";
status_trace("Connect OUT to %s",
type_to_string(tmpctx, struct pubkey, id));
return peer_exchange_initmsg(conn, connect->daemon, cs, id, addr);
}
struct io_plan *connection_out(struct io_conn *conn, struct connecting *connect)
{
/* FIXME: Timeout */
status_trace("Connected out for %s",
type_to_string(tmpctx, struct pubkey, &connect->id));
connect->connstate = "Cryptographic handshake";
return initiator_handshake(conn, &connect->daemon->id, &connect->id,
&connect->addrs[connect->addrnum],
handshake_out_success, connect);
}
static void PRINTF_FMT(5,6)
connect_failed(struct daemon *daemon,
const struct pubkey *id,
u32 seconds_waited,
const struct wireaddr_internal *addrhint,
const char *errfmt, ...)
{
u8 *msg;
va_list ap;
char *err;
u32 wait_seconds;
va_start(ap, errfmt);
err = tal_vfmt(tmpctx, errfmt, ap);
va_end(ap);
/* Wait twice as long to reconnect, between min and max. */
wait_seconds = seconds_waited * 2;
if (wait_seconds > MAX_WAIT_SECONDS)
wait_seconds = MAX_WAIT_SECONDS;
if (wait_seconds < INITIAL_WAIT_SECONDS)
wait_seconds = INITIAL_WAIT_SECONDS;
/* Tell any connect command what happened. */
msg = towire_connectctl_connect_failed(NULL, id, err, wait_seconds,
addrhint);
daemon_conn_send(&daemon->master, take(msg));
status_trace("Failed connected out for %s: %s",
type_to_string(tmpctx, struct pubkey, id),
err);
}
static void destroy_io_conn(struct io_conn *conn, struct connecting *connect)
{
tal_append_fmt(&connect->errors,
"%s: %s: %s. ",
type_to_string(tmpctx, struct wireaddr_internal,
&connect->addrs[connect->addrnum]),
connect->connstate, strerror(errno));
connect->addrnum++;
try_connect_one_addr(connect);
}
static struct io_plan *conn_init(struct io_conn *conn,
struct connecting *connect)
{
struct addrinfo *ai = NULL;
const struct wireaddr_internal *addr = &connect->addrs[connect->addrnum];
switch (addr->itype) {
case ADDR_INTERNAL_SOCKNAME:
ai = wireaddr_internal_to_addrinfo(tmpctx, addr);
break;
case ADDR_INTERNAL_ALLPROTO:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect to all protocols");
break;
case ADDR_INTERNAL_AUTOTOR:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect to autotor address");
break;
case ADDR_INTERNAL_FORPROXY:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect to forproxy address");
break;
case ADDR_INTERNAL_WIREADDR:
/* If it was a Tor address, we wouldn't be here. */
ai = wireaddr_to_addrinfo(tmpctx, &addr->u.wireaddr);
break;
}
assert(ai);
io_set_finish(conn, destroy_io_conn, connect);
return io_connect(conn, ai, connection_out, connect);
}
static struct io_plan *conn_proxy_init(struct io_conn *conn,
struct connecting *connect)
{
const char *host = NULL;
u16 port;
const struct wireaddr_internal *addr = &connect->addrs[connect->addrnum];
switch (addr->itype) {
case ADDR_INTERNAL_FORPROXY:
host = addr->u.unresolved.name;
port = addr->u.unresolved.port;
break;
case ADDR_INTERNAL_WIREADDR:
host = fmt_wireaddr_without_port(tmpctx, &addr->u.wireaddr);
port = addr->u.wireaddr.port;
break;
case ADDR_INTERNAL_SOCKNAME:
case ADDR_INTERNAL_ALLPROTO:
case ADDR_INTERNAL_AUTOTOR:
break;
}
if (!host)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect to %u address", addr->itype);
io_set_finish(conn, destroy_io_conn, connect);
return io_tor_connect(conn, connect->daemon->proxyaddr, host, port,
connect);
}
static const char *seedname(const tal_t *ctx, const struct pubkey *id)
{
char bech32[100];
@ -930,87 +1011,6 @@ static void add_gossip_addrs(struct wireaddr_internal **addrs,
}
}
static void try_connect_one_addr(struct connecting *connect)
{
int fd, af;
bool use_proxy = connect->daemon->use_proxy_always;
const struct wireaddr_internal *addr = &connect->addrs[connect->addrnum];
if (connect->addrnum == tal_count(connect->addrs)) {
connect_failed(connect->daemon, &connect->id,
connect->seconds_waited,
connect->addrhint, "%s", connect->errors);
tal_free(connect);
return;
}
/* Might not even be able to create eg. IPv6 sockets */
af = -1;
switch (addr->itype) {
case ADDR_INTERNAL_SOCKNAME:
af = AF_LOCAL;
/* Local sockets don't use tor proxy */
use_proxy = false;
break;
case ADDR_INTERNAL_ALLPROTO:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect ALLPROTO");
case ADDR_INTERNAL_AUTOTOR:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Can't connect AUTOTOR");
case ADDR_INTERNAL_FORPROXY:
use_proxy = true;
break;
case ADDR_INTERNAL_WIREADDR:
switch (addr->u.wireaddr.type) {
case ADDR_TYPE_TOR_V2:
case ADDR_TYPE_TOR_V3:
use_proxy = true;
break;
case ADDR_TYPE_IPV4:
af = AF_INET;
break;
case ADDR_TYPE_IPV6:
af = AF_INET6;
break;
case ADDR_TYPE_PADDING:
break;
}
}
/* If we have to use proxy but we don't have one, we fail. */
if (use_proxy) {
if (!connect->daemon->proxyaddr) {
status_debug("Need proxy");
af = -1;
} else
af = connect->daemon->proxyaddr->ai_family;
}
if (af == -1) {
fd = -1;
errno = EPROTONOSUPPORT;
} else
fd = socket(af, SOCK_STREAM, 0);
if (fd < 0) {
tal_append_fmt(&connect->errors,
"%s: opening %i socket gave %s. ",
type_to_string(tmpctx, struct wireaddr_internal,
addr),
af, strerror(errno));
connect->addrnum++;
try_connect_one_addr(connect);
return;
}
if (use_proxy)
io_new_conn(connect, fd, conn_proxy_init, connect);
else
io_new_conn(connect, fd, conn_init, connect);
}
/* Consumes addrhint if not NULL */
static void try_connect_peer(struct daemon *daemon,
const struct pubkey *id,

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