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From d728fdc655f17031da3bb129ab2fd17dadf0fe3a Mon Sep 17 00:00:00 2001
From: Simon Peeters <peeters.simon@gmail.com>
Date: Sun, 7 Oct 2012 16:59:30 +0200
Subject: [PATCH] Set correct address when using --address=systemd:
When dbus gets launched through systemd, we need to create an address
string based on the sockets passed.
The _dbus_append_addres_from_socket() function is responsible for
extracting the address information from the file-descriptor and
formatting it in a dbus friendly way.
This fixes bus activation when running dbus under a systemd session.
https://bugs.freedesktop.org/show_bug.cgi?id=50962
Upstream-Status: Backport
Signed-off-by: Simon Peeters <peeters.simon@gmail.com>
Signed-off-by: Jonathan Liu <net147@gmail.com>
---
dbus/dbus-server-unix.c | 38 ++++++++++++++++++---------
dbus/dbus-sysdeps-unix.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++
dbus/dbus-sysdeps-unix.h | 4 +++
3 files changed, 97 insertions(+), 13 deletions(-)
diff --git a/dbus/dbus-server-unix.c b/dbus/dbus-server-unix.c
index 130f66e..d995240 100644
--- a/dbus/dbus-server-unix.c
+++ b/dbus/dbus-server-unix.c
@@ -149,7 +149,7 @@ _dbus_server_listen_platform_specific (DBusAddressEntry *entry,
}
else if (strcmp (method, "systemd") == 0)
{
- int n, *fds;
+ int i, n, *fds;
DBusString address;
n = _dbus_listen_systemd_sockets (&fds, error);
@@ -159,27 +159,39 @@ _dbus_server_listen_platform_specific (DBusAddressEntry *entry,
return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
}
- _dbus_string_init_const (&address, "systemd:");
+ if (!_dbus_string_init (&address))
+ goto systemd_oom;
- *server_p = _dbus_server_new_for_socket (fds, n, &address, NULL);
- if (*server_p == NULL)
+ for (i = 0; i < n; i++)
{
- int i;
-
- for (i = 0; i < n; i++)
+ if (i > 0)
{
- _dbus_close_socket (fds[i], NULL);
+ if (!_dbus_string_append (&address, ";"))
+ goto systemd_oom;
}
- dbus_free (fds);
-
- dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
- return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
+ if (!_dbus_append_address_from_socket (fds[i], &address, error))
+ goto systemd_err;
}
+ *server_p = _dbus_server_new_for_socket (fds, n, &address, NULL);
+ if (*server_p == NULL)
+ goto systemd_oom;
+
dbus_free (fds);
return DBUS_SERVER_LISTEN_OK;
- }
+ systemd_oom:
+ _DBUS_SET_OOM (error);
+ systemd_err:
+ for (i = 0; i < n; i++)
+ {
+ _dbus_close_socket (fds[i], NULL);
+ }
+ dbus_free (fds);
+ _dbus_string_free (&address);
+
+ return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
+ }
#ifdef DBUS_ENABLE_LAUNCHD
else if (strcmp (method, "launchd") == 0)
{
diff --git a/dbus/dbus-sysdeps-unix.c b/dbus/dbus-sysdeps-unix.c
index b4ecc96..55743b1 100644
--- a/dbus/dbus-sysdeps-unix.c
+++ b/dbus/dbus-sysdeps-unix.c
@@ -55,6 +55,7 @@
#include <netinet/in.h>
#include <netdb.h>
#include <grp.h>
+#include <arpa/inet.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
@@ -4160,4 +4161,71 @@ _dbus_check_setuid (void)
#endif
}
+/**
+ * Read the address from the socket and append it to the string
+ *
+ * @param fd the socket
+ * @param address
+ * @param error return location for error code
+ */
+dbus_bool_t
+_dbus_append_address_from_socket (int fd,
+ DBusString *address,
+ DBusError *error)
+{
+ union {
+ struct sockaddr sa;
+ struct sockaddr_storage storage;
+ struct sockaddr_un un;
+ struct sockaddr_in ipv4;
+ struct sockaddr_in6 ipv6;
+ } socket;
+ char hostip[INET6_ADDRSTRLEN];
+ int size = sizeof (socket);
+
+ if (getsockname (fd, &socket.sa, &size))
+ goto err;
+
+ switch (socket.sa.sa_family)
+ {
+ case AF_UNIX:
+ if (socket.un.sun_path[0]=='\0')
+ {
+ if (_dbus_string_append_printf (address, "unix:abstract=%s", &(socket.un.sun_path[1])))
+ return TRUE;
+ }
+ else
+ {
+ if (_dbus_string_append_printf (address, "unix:path=%s", socket.un.sun_path))
+ return TRUE;
+ }
+ break;
+ case AF_INET:
+ if (inet_ntop (AF_INET, &socket.ipv4.sin_addr, hostip, sizeof (hostip)))
+ if (_dbus_string_append_printf (address, "tcp:family=ipv4,host=%s,port=%u",
+ hostip, ntohs (socket.ipv4.sin_port)))
+ return TRUE;
+ break;
+#ifdef AF_INET6
+ case AF_INET6:
+ if (inet_ntop (AF_INET6, &socket.ipv6.sin6_addr, hostip, sizeof (hostip)))
+ if (_dbus_string_append_printf (address, "tcp:family=ipv6,host=%s,port=%u",
+ hostip, ntohs (socket.ipv6.sin6_port)))
+ return TRUE;
+ break;
+#endif
+ default:
+ dbus_set_error (error,
+ _dbus_error_from_errno (EINVAL),
+ "Failed to read address from socket: Unknown socket type.");
+ return FALSE;
+ }
+ err:
+ dbus_set_error (error,
+ _dbus_error_from_errno (errno),
+ "Failed to open socket: %s",
+ _dbus_strerror (errno));
+ return FALSE;
+}
+
/* tests in dbus-sysdeps-util.c */
diff --git a/dbus/dbus-sysdeps-unix.h b/dbus/dbus-sysdeps-unix.h
index 9b70896..a265b33 100644
--- a/dbus/dbus-sysdeps-unix.h
+++ b/dbus/dbus-sysdeps-unix.h
@@ -138,6 +138,10 @@ dbus_bool_t _dbus_parse_uid (const DBusString *uid_str,
void _dbus_close_all (void);
+dbus_bool_t _dbus_append_address_from_socket (int fd,
+ DBusString *address,
+ DBusError *error);
+
/** @} */
DBUS_END_DECLS
--
1.9.0
|
