/*
- * $Id: dsi_tcp.c,v 1.18 2009-11-05 14:38:08 franklahm Exp $
- *
* Copyright (c) 1997, 1998 Adrian Sun (asun@zoology.washington.edu)
* All rights reserved. See COPYRIGHT.
*
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#ifdef HAVE_UNISTD_H
#include <unistd.h>
-#endif /* HAVE_UNISTD_H */
#include <errno.h>
#ifdef HAVE_NETDB_H
#include <netdb.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
-
-#ifdef HAVE_STDINT_H
#include <stdint.h>
-#endif /* HAVE_STDINT_H */
#include <sys/ioctl.h>
#ifdef TRU64
#include <atalk/dsi.h>
#include <atalk/compat.h>
#include <atalk/util.h>
-#include <netatalk/endian.h>
-#include "dsi_private.h"
+#include <atalk/errchk.h>
#define min(a,b) ((a) < (b) ? (a) : (b))
dsi->socket = -1;
}
-static void dsi_tcp_timeout(DSI *dsi)
-{
- struct timeval tv;
- /* 2 seconds delay, most of the time it translates to 4 seconds:
- * send/write returns first with whatever it has written and the
- * second time it returns EAGAIN
- */
- tv.tv_sec = 2;
- tv.tv_usec = 0;
-
- /* Note: write isn't a restartable syscall if there's a timeout on the socket
- * we have to test for EINTR
- */
- if (setsockopt(dsi->socket, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)) < 0) {
- LOG(log_error, logtype_default, "dsi_tcp_open: unable to set timeout %s", strerror(errno));
- exit(EXITERR_CLNT);
- }
-}
-
/* alarm handler for tcp_open */
static void timeout_handler(int sig _U_)
{
- LOG(log_error, logtype_default, "dsi_tcp_open: connection timed out");
+ LOG(log_error, logtype_dsi, "dsi_tcp_open: connection timed out");
exit(EXITERR_CLNT);
}
#ifdef TCPWRAP
{
struct request_info req;
- request_init(&req, RQ_DAEMON, dsi->program, RQ_FILE, dsi->socket, NULL);
+ request_init(&req, RQ_DAEMON, "afpd", RQ_FILE, dsi->socket, NULL);
fromhost(&req);
if (!hosts_access(&req)) {
- LOG(deny_severity, logtype_default, "refused connect from %s", eval_client(&req));
+ LOG(deny_severity, logtype_dsi, "refused connect from %s", eval_client(&req));
close(dsi->socket);
errno = ECONNREFUSED;
dsi->socket = -1;
if (0 == (pid = fork()) ) { /* child */
static struct itimerval timer = {{0, 0}, {DSI_TCPTIMEOUT, 0}};
struct sigaction newact, oldact;
- u_int8_t block[DSI_BLOCKSIZ];
+ uint8_t block[DSI_BLOCKSIZ];
size_t stored;
/* reset signals */
if ((sigaction(SIGALRM, &newact, &oldact) < 0) ||
(setitimer(ITIMER_REAL, &timer, NULL) < 0)) {
- LOG(log_error, logtype_default, "dsi_tcp_open: %s", strerror(errno));
+ LOG(log_error, logtype_dsi, "dsi_tcp_open: %s", strerror(errno));
exit(EXITERR_SYS);
}
#endif
exit(EXITERR_CLNT);
}
if (len < 2 || (block[0] > DSIFL_MAX) || (block[1] > DSIFUNC_MAX)) {
- LOG(log_error, logtype_default, "dsi_tcp_open: invalid header");
+ LOG(log_error, logtype_dsi, "dsi_tcp_open: invalid header");
exit(EXITERR_CLNT);
}
if (len > 0)
stored += len;
else {
- LOG(log_error, logtype_default, "dsi_tcp_open: stream_read: %s", strerror(errno));
+ LOG(log_error, logtype_dsi, "dsi_tcp_open: stream_read: %s", strerror(errno));
exit(EXITERR_CLNT);
}
}
if (len > 0)
stored += len;
else {
- LOG(log_error, logtype_default, "dsi_tcp_open: stream_read: %s", strerror(errno));
+ LOG(log_error, logtype_dsi, "dsi_tcp_open: stream_read: %s", strerror(errno));
exit(EXITERR_CLNT);
}
}
sigaction(SIGALRM, &oldact, NULL);
#endif
- dsi_tcp_timeout(dsi);
-
- LOG(log_info, logtype_default, "AFP/TCP session from %s:%u",
+ LOG(log_info, logtype_dsi, "AFP/TCP session from %s:%u",
getip_string((struct sockaddr *)&dsi->client),
getip_port((struct sockaddr *)&dsi->client));
}
return pid;
}
+/* get it from the interface list */
+#ifndef IFF_SLAVE
+#define IFF_SLAVE 0
+#endif
+
+static void guess_interface(DSI *dsi, const char *hostname, const char *port)
+{
+ int fd;
+ char **start, **list;
+ struct ifreq ifr;
+ struct sockaddr_in *sa = (struct sockaddr_in *)&dsi->server;
+
+ start = list = getifacelist();
+ if (!start)
+ return;
+
+ fd = socket(PF_INET, SOCK_STREAM, 0);
+
+ while (list && *list) {
+ strlcpy(ifr.ifr_name, *list, sizeof(ifr.ifr_name));
+ list++;
+
+
+ if (ioctl(dsi->serversock, SIOCGIFFLAGS, &ifr) < 0)
+ continue;
+
+ if (ifr.ifr_flags & (IFF_LOOPBACK | IFF_POINTOPOINT | IFF_SLAVE))
+ continue;
+
+ if (!(ifr.ifr_flags & (IFF_UP | IFF_RUNNING)) )
+ continue;
+
+ if (ioctl(fd, SIOCGIFADDR, &ifr) < 0)
+ continue;
+
+ memset(&dsi->server, 0, sizeof(struct sockaddr_storage));
+ sa->sin_family = AF_INET;
+ sa->sin_port = htons(atoi(port));
+ sa->sin_addr = ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr;
+
+ LOG(log_info, logtype_dsi, "dsi_tcp: '%s:%s' on interface '%s' will be used instead.",
+ getip_string((struct sockaddr *)&dsi->server), port, ifr.ifr_name);
+ goto iflist_done;
+ }
+ LOG(log_info, logtype_dsi, "dsi_tcp (Chooser will not select afp/tcp) "
+ "Check to make sure %s is in /etc/hosts and the correct domain is in "
+ "/etc/resolv.conf: %s", hostname, strerror(errno));
+
+iflist_done:
+ close(fd);
+ freeifacelist(start);
+}
+
+
+#ifndef AI_NUMERICSERV
+#define AI_NUMERICSERV 0
+#endif
+
/* this needs to accept passed in addresses */
-int dsi_tcp_init(DSI *dsi, const char *hostname, const char *address,
- const char *port, const int proxy)
+int dsi_tcp_init(DSI *dsi, const char *hostname, const char *inaddress, const char *inport)
{
- int ret;
+ EC_INIT;
int flag;
+ char *a = NULL, *b;
+ const char *address;
+ const char *port;
struct addrinfo hints, *servinfo, *p;
- dsi->protocol = DSI_TCPIP;
+ /* Check whether address is of the from IP:PORT and split */
+ address = inaddress;
+ port = inport;
+ if (address && strchr(address, ':')) {
+ EC_NULL_LOG( address = a = strdup(address) );
+ b = strchr(a, ':');
+ *b = 0;
+ port = b + 1;
+ }
/* Prepare hint for getaddrinfo */
memset(&hints, 0, sizeof hints);
+#if !defined(FREEBSD)
hints.ai_family = AF_UNSPEC;
+#endif
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_NUMERICSERV;
- if ( ! address)
+
+ if ( ! address) {
hints.ai_flags |= AI_PASSIVE;
- else
+#if defined(FREEBSD)
+ hints.ai_family = AF_INET6;
+#endif
+ } else {
hints.ai_flags |= AI_NUMERICHOST;
-
- if ((ret = getaddrinfo(address ? address : NULL, port ? port : "548", &hints, &servinfo)) != 0) {
- LOG(log_error, logtype_default, "dsi_tcp_init: getaddrinfo: %s\n", gai_strerror(ret));
- return 0;
+#if defined(FREEBSD)
+ hints.ai_family = AF_UNSPEC;
+#endif
+ }
+ if ((ret = getaddrinfo(address ? address : NULL, port, &hints, &servinfo)) != 0) {
+ LOG(log_error, logtype_dsi, "dsi_tcp_init: getaddrinfo: %s\n", gai_strerror(ret));
+ EC_FAIL;
}
- /* create a socket */
- if (proxy)
- dsi->serversock = -1;
- else {
- /* loop through all the results and bind to the first we can */
- for (p = servinfo; p != NULL; p = p->ai_next) {
- if ((dsi->serversock = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == -1) {
- LOG(log_info, logtype_default, "dsi_tcp_init: socket: %s", strerror(errno));
- continue;
- }
+ /* loop through all the results and bind to the first we can */
+ for (p = servinfo; p != NULL; p = p->ai_next) {
+ if ((dsi->serversock = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == -1) {
+ LOG(log_info, logtype_dsi, "dsi_tcp_init: socket: %s", strerror(errno));
+ continue;
+ }
- /*
- * Set some socket options:
- * SO_REUSEADDR deals w/ quick close/opens
- * TCP_NODELAY diables Nagle
- */
+ /*
+ * Set some socket options:
+ * SO_REUSEADDR deals w/ quick close/opens
+ * TCP_NODELAY diables Nagle
+ */
#ifdef SO_REUSEADDR
- flag = 1;
- setsockopt(dsi->serversock, SOL_SOCKET, SO_REUSEADDR, &flag, sizeof(flag));
+ flag = 1;
+ setsockopt(dsi->serversock, SOL_SOCKET, SO_REUSEADDR, &flag, sizeof(flag));
+#endif
+#if defined(FREEBSD) && defined(IPV6_BINDV6ONLY)
+ int on = 0;
+ setsockopt(dsi->serversock, IPPROTO_IPV6, IPV6_BINDV6ONLY, (char *)&on, sizeof (on));
#endif
#ifdef USE_TCP_NODELAY
#ifndef SOL_TCP
#define SOL_TCP IPPROTO_TCP
#endif
- flag = 1;
- setsockopt(dsi->serversock, SOL_TCP, TCP_NODELAY, &flag, sizeof(flag));
+ flag = 1;
+ setsockopt(dsi->serversock, SOL_TCP, TCP_NODELAY, &flag, sizeof(flag));
#endif /* USE_TCP_NODELAY */
- if (bind(dsi->serversock, p->ai_addr, p->ai_addrlen) == -1) {
- close(dsi->serversock);
- LOG(log_info, logtype_default, "dsi_tcp_init: bind: %s\n", strerror(errno));
- continue;
- }
-
- if (listen(dsi->serversock, DSI_TCPMAXPEND) < 0) {
- close(dsi->serversock);
- LOG(log_info, logtype_default, "dsi_tcp_init: listen: %s\n", strerror(errno));
- continue;
- }
-
- break;
+ if (bind(dsi->serversock, p->ai_addr, p->ai_addrlen) == -1) {
+ close(dsi->serversock);
+ LOG(log_info, logtype_dsi, "dsi_tcp_init: bind: %s\n", strerror(errno));
+ continue;
}
- if (p == NULL) {
- LOG(log_error, logtype_default, "dsi_tcp_init: no suitable network config for TCP socket");
- freeaddrinfo(servinfo);
- return 0;
+ if (listen(dsi->serversock, DSI_TCPMAXPEND) < 0) {
+ close(dsi->serversock);
+ LOG(log_info, logtype_dsi, "dsi_tcp_init: listen: %s\n", strerror(errno));
+ continue;
}
+
+ break;
+ }
- /* Copy struct sockaddr to struct sockaddr_storage */
- memcpy(&dsi->server, p->ai_addr, p->ai_addrlen);
+ if (p == NULL) {
+ LOG(log_error, logtype_dsi, "dsi_tcp_init: no suitable network config for TCP socket");
freeaddrinfo(servinfo);
- } /* if (proxy) */
+ EC_FAIL;
+ }
+
+ /* Copy struct sockaddr to struct sockaddr_storage */
+ memcpy(&dsi->server, p->ai_addr, p->ai_addrlen);
+ freeaddrinfo(servinfo);
/* Point protocol specific functions to tcp versions */
dsi->proto_open = dsi_tcp_open;
if (address) {
/* address is a parameter, use it 'as is' */
- return 1;
+ goto EC_CLEANUP;
}
/* Prepare hint for getaddrinfo */
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
- if ((ret = getaddrinfo(hostname, port ? port : "548", &hints, &servinfo)) != 0) {
- LOG(log_error, logtype_default, "dsi_tcp_init: getaddrinfo: %s\n", gai_strerror(ret));
- return 0;
+ if ((ret = getaddrinfo(hostname, port, &hints, &servinfo)) != 0) {
+ LOG(log_info, logtype_dsi, "dsi_tcp_init: getaddrinfo '%s': %s\n", hostname, gai_strerror(ret));
+ goto interfaces;
}
for (p = servinfo; p != NULL; p = p->ai_next) {
}
}
- if (p == NULL) { /* no advertisable address found */
- LOG(log_info, logtype_default, "dsi_tcp: cannot resolve hostname '%s'", hostname);
+ if (p) {
+ /* Store found address in dsi->server */
+ memcpy(&dsi->server, p->ai_addr, p->ai_addrlen);
freeaddrinfo(servinfo);
- return 0;
+ goto EC_CLEANUP;
}
-
- /* Store found address in dsi->server */
- memcpy(&dsi->server, p->ai_addr, p->ai_addrlen);
+ LOG(log_info, logtype_dsi, "dsi_tcp: hostname '%s' resolves to loopback address", hostname);
freeaddrinfo(servinfo);
- return 1;
-
- /*
- * Note: I'll leave this code just in case. With getaddrinfo I guess we
- * should be able to get an IP != 127.0.0.1 or ::1 from the hostname. Hopefully.
- */
-#if 0
- /* get it from the interface list */
- char **start, **list;
- struct ifreq ifr;
- start = list = getifacelist();
- while (list && *list) {
- strlcpy(ifr.ifr_name, *list, sizeof(ifr.ifr_name));
- list++;
-#ifndef IFF_SLAVE
-#define IFF_SLAVE 0
-#endif
+interfaces:
+ guess_interface(dsi, hostname, port ? port : "548");
- if (ioctl(dsi->serversock, SIOCGIFFLAGS, &ifr) < 0)
- continue;
-
- if (ifr.ifr_flags & (IFF_LOOPBACK | IFF_POINTOPOINT | IFF_SLAVE))
- continue;
-
- if (!(ifr.ifr_flags & (IFF_UP | IFF_RUNNING)) )
- continue;
-
- if (ioctl(dsi->serversock, SIOCGIFADDR, &ifr) < 0)
- continue;
-
- dsi->server.sin_addr.s_addr =
- ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr;
- LOG(log_info, logtype_default, "dsi_tcp: '%s' on interface '%s' will be used instead.",
- inet_ntoa(dsi->server.sin_addr), ifr.ifr_name);
- goto iflist_done;
- }
- LOG(log_info, logtype_default, "dsi_tcp (Chooser will not select afp/tcp) "
- "Check to make sure %s is in /etc/hosts and the correct domain is in "
- "/etc/resolv.conf: %s", hostname, strerror(errno));
-
-iflist_done:
- if (start)
- freeifacelist(start);
- return 1;
-
-#endif
+EC_CLEANUP:
+ if (a)
+ free(a);
+ EC_EXIT;
}
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