X-Git-Url: https://code.delx.au/pulseaudio/blobdiff_plain/7df3c4f378ccb725a0a6a4974ca731eb766e04cc..5cf0c1e544a5fce97d514c793256b2e301277136:/src/pulse/context.c diff --git a/src/pulse/context.c b/src/pulse/context.c index 0780e2f3..894ab2e0 100644 --- a/src/pulse/context.c +++ b/src/pulse/context.c @@ -1,5 +1,3 @@ -/* $Id$ */ - /*** This file is part of PulseAudio. @@ -8,7 +6,7 @@ PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2 of the License, + by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. PulseAudio is distributed in the hope that it will be useful, but @@ -55,6 +53,9 @@ #include #include #include +#include +#include +#include #include #include @@ -65,15 +66,18 @@ #include #include #include +#include #include #include #include #include #include +#include #include "internal.h" #include "client-conf.h" +#include "fork-detect.h" #ifdef HAVE_X11 #include "client-conf-x11.h" @@ -81,7 +85,7 @@ #include "context.h" -#define AUTOSPAWN_LOCK "autospawn.lock" +void pa_command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = { [PA_COMMAND_REQUEST] = pa_command_request, @@ -94,25 +98,20 @@ static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = { [PA_COMMAND_PLAYBACK_STREAM_SUSPENDED] = pa_command_stream_suspended, [PA_COMMAND_RECORD_STREAM_SUSPENDED] = pa_command_stream_suspended, [PA_COMMAND_STARTED] = pa_command_stream_started, - [PA_COMMAND_SUBSCRIBE_EVENT] = pa_command_subscribe_event + [PA_COMMAND_SUBSCRIBE_EVENT] = pa_command_subscribe_event, + [PA_COMMAND_EXTENSION] = pa_command_extension, + [PA_COMMAND_PLAYBACK_STREAM_EVENT] = pa_command_stream_event, + [PA_COMMAND_RECORD_STREAM_EVENT] = pa_command_stream_event, + [PA_COMMAND_CLIENT_EVENT] = pa_command_client_event, + [PA_COMMAND_PLAYBACK_BUFFER_ATTR_CHANGED] = pa_command_stream_buffer_attr, + [PA_COMMAND_RECORD_BUFFER_ATTR_CHANGED] = pa_command_stream_buffer_attr }; - -static void unlock_autospawn_lock_file(pa_context *c) { - pa_assert(c); - - if (c->autospawn_lock_fd >= 0) { - char *lf; - - lf = pa_runtime_path(AUTOSPAWN_LOCK); - pa_unlock_lockfile(lf, c->autospawn_lock_fd); - pa_xfree(lf); - - c->autospawn_lock_fd = -1; - } -} - static void context_free(pa_context *c); +#ifdef HAVE_DBUS +static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *message, void *userdata); +#endif + pa_context *pa_context_new(pa_mainloop_api *mainloop, const char *name) { return pa_context_new_with_proplist(mainloop, name, NULL); } @@ -125,6 +124,12 @@ static void reset_callbacks(pa_context *c) { c->subscribe_callback = NULL; c->subscribe_userdata = NULL; + + c->event_callback = NULL; + c->event_userdata = NULL; + + c->ext_stream_restore.callback = NULL; + c->ext_stream_restore.userdata = NULL; } pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char *name, pa_proplist *p) { @@ -132,9 +137,11 @@ pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char * pa_assert(mainloop); - if (!name && !pa_proplist_contains(p, PA_PROP_APPLICATION_NAME)) + if (pa_detect_fork()) return NULL; + pa_init_i18n(); + c = pa_xnew(pa_context, 1); PA_REFCNT_INIT(c); @@ -143,6 +150,9 @@ pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char * if (name) pa_proplist_sets(c->proplist, PA_PROP_APPLICATION_NAME, name); +#ifdef HAVE_DBUS + c->system_bus = c->session_bus = NULL; +#endif c->mainloop = mainloop; c->client = NULL; c->pstream = NULL; @@ -150,6 +160,7 @@ pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char * c->playback_streams = pa_dynarray_new(); c->record_streams = pa_dynarray_new(); c->client_index = PA_INVALID_INDEX; + c->use_rtclock = pa_mainloop_is_our_api(mainloop); PA_LLIST_HEAD_INIT(pa_stream, c->streams); PA_LLIST_HEAD_INIT(pa_operation, c->operations); @@ -164,9 +175,13 @@ pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char * c->is_local = FALSE; c->server_list = NULL; c->server = NULL; - c->autospawn_lock_fd = -1; - memset(&c->spawn_api, 0, sizeof(c->spawn_api)); + + c->do_shm = FALSE; + + c->server_specified = FALSE; + c->no_fail = FALSE; c->do_autospawn = FALSE; + memset(&c->spawn_api, 0, sizeof(c->spawn_api)); #ifndef MSG_NOSIGNAL #ifdef SIGPIPE @@ -181,10 +196,10 @@ pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char * #endif pa_client_conf_env(c->conf); - if (!(c->mempool = pa_mempool_new(!c->conf->disable_shm))) { + if (!(c->mempool = pa_mempool_new(!c->conf->disable_shm, c->conf->shm_size))) { if (!c->conf->disable_shm) - c->mempool = pa_mempool_new(0); + c->mempool = pa_mempool_new(FALSE, c->conf->shm_size); if (!c->mempool) { context_free(c); @@ -235,7 +250,17 @@ static void context_free(pa_context *c) { context_unlink(c); - unlock_autospawn_lock_file(c); +#ifdef HAVE_DBUS + if (c->system_bus) { + dbus_connection_remove_filter(pa_dbus_wrap_connection_get(c->system_bus), filter_cb, c); + pa_dbus_wrap_connection_free(c->system_bus); + } + + if (c->session_bus) { + dbus_connection_remove_filter(pa_dbus_wrap_connection_get(c->session_bus), filter_cb, c); + pa_dbus_wrap_connection_free(c->session_bus); + } +#endif if (c->record_streams) pa_dynarray_free(c->record_streams, NULL, NULL); @@ -341,8 +366,7 @@ static void pstream_memblock_callback(pa_pstream *p, uint32_t channel, int64_t o pa_assert(p); pa_assert(chunk); - pa_assert(chunk->memblock); - pa_assert(chunk->length); + pa_assert(chunk->length > 0); pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); @@ -350,11 +374,11 @@ static void pstream_memblock_callback(pa_pstream *p, uint32_t channel, int64_t o if ((s = pa_dynarray_get(c->record_streams, channel))) { - pa_assert(seek == PA_SEEK_RELATIVE); - pa_assert(offset == 0); - - pa_memblockq_seek(s->record_memblockq, offset, seek); - pa_memblockq_push_align(s->record_memblockq, chunk); + if (chunk->memblock) { + pa_memblockq_seek(s->record_memblockq, offset, seek, TRUE); + pa_memblockq_push_align(s->record_memblockq, chunk); + } else + pa_memblockq_seek(s->record_memblockq, offset+chunk->length, seek, TRUE); if (s->read_callback) { size_t l; @@ -375,7 +399,8 @@ int pa_context_handle_error(pa_context *c, uint32_t command, pa_tagstruct *t, pa if (command == PA_COMMAND_ERROR) { pa_assert(t); - if (pa_tagstruct_getu32(t, &err) < 0) { + if (pa_tagstruct_getu32(t, &err) < 0 || + !pa_tagstruct_eof(t)) { pa_context_fail(c, PA_ERR_PROTOCOL); return -1; } @@ -396,11 +421,11 @@ int pa_context_handle_error(pa_context *c, uint32_t command, pa_tagstruct *t, pa err = PA_ERR_UNKNOWN; if (fail) { - pa_context_fail(c, err); + pa_context_fail(c, (int) err); return -1; } - pa_context_set_error(c, err); + pa_context_set_error(c, (int) err); return 0; } @@ -422,6 +447,7 @@ static void setup_complete_callback(pa_pdispatch *pd, uint32_t command, uint32_t switch(c->state) { case PA_CONTEXT_AUTHORIZING: { pa_tagstruct *reply; + pa_bool_t shm_on_remote = FALSE; if (pa_tagstruct_getu32(t, &c->version) < 0 || !pa_tagstruct_eof(t)) { @@ -435,10 +461,22 @@ static void setup_complete_callback(pa_pdispatch *pd, uint32_t command, uint32_t goto finish; } + /* Starting with protocol version 13 the MSB of the version + tag reflects if shm is available for this connection or + not. */ + if (c->version >= 13) { + shm_on_remote = !!(c->version & 0x80000000U); + c->version &= 0x7FFFFFFFU; + } + + pa_log_debug("Protocol version: remote %u, local %u", c->version, PA_PROTOCOL_VERSION); + /* Enable shared memory support if possible */ - if (c->version >= 10 && - pa_mempool_is_shared(c->mempool) && - c->is_local) { + if (c->do_shm) + if (c->version < 10 || (c->version >= 13 && !shm_on_remote)) + c->do_shm = FALSE; + + if (c->do_shm) { /* Only enable SHM if both sides are owned by the same * user. This is a security measure because otherwise @@ -446,12 +484,14 @@ static void setup_complete_callback(pa_pdispatch *pd, uint32_t command, uint32_t #ifdef HAVE_CREDS const pa_creds *creds; - if ((creds = pa_pdispatch_creds(pd))) - if (getuid() == creds->uid) - pa_pstream_enable_shm(c->pstream, TRUE); + if (!(creds = pa_pdispatch_creds(pd)) || getuid() != creds->uid) + c->do_shm = FALSE; #endif } + pa_log_debug("Negotiated SHM: %s", pa_yes_no(c->do_shm)); + pa_pstream_enable_shm(c->pstream, c->do_shm); + reply = pa_tagstruct_command(c, PA_COMMAND_SET_CLIENT_NAME, &tag); if (c->version >= 13) { @@ -504,13 +544,22 @@ static void setup_context(pa_context *c, pa_iochannel *io) { pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c); pa_assert(!c->pdispatch); - c->pdispatch = pa_pdispatch_new(c->mainloop, command_table, PA_COMMAND_MAX); + c->pdispatch = pa_pdispatch_new(c->mainloop, c->use_rtclock, command_table, PA_COMMAND_MAX); if (!c->conf->cookie_valid) - pa_log_info("No cookie loaded. Attempting to connect without."); + pa_log_info(_("No cookie loaded. Attempting to connect without.")); t = pa_tagstruct_command(c, PA_COMMAND_AUTH, &tag); - pa_tagstruct_putu32(t, PA_PROTOCOL_VERSION); + + c->do_shm = + pa_mempool_is_shared(c->mempool) && + c->is_local; + + pa_log_debug("SHM possible: %s", pa_yes_no(c->do_shm)); + + /* Starting with protocol version 13 we use the MSB of the version + * tag for informing the other side if we could do SHM or not */ + pa_tagstruct_putu32(t, PA_PROTOCOL_VERSION | (c->do_shm ? 0x80000000U : 0)); pa_tagstruct_put_arbitrary(t, c->conf->cookie, sizeof(c->conf->cookie)); #ifdef HAVE_CREDS @@ -536,37 +585,112 @@ static void setup_context(pa_context *c, pa_iochannel *io) { pa_context_unref(c); } -static void on_connection(pa_socket_client *client, pa_iochannel*io, void *userdata); +#ifdef ENABLE_LEGACY_RUNTIME_DIR +static char *get_old_legacy_runtime_dir(void) { + char *p, u[128]; + struct stat st; + + if (!pa_get_user_name(u, sizeof(u))) + return NULL; + + p = pa_sprintf_malloc("/tmp/pulse-%s", u); + + if (stat(p, &st) < 0) { + pa_xfree(p); + return NULL; + } + + if (st.st_uid != getuid()) { + pa_xfree(p); + return NULL; + } + + return p; +} + +static char *get_very_old_legacy_runtime_dir(void) { + char *p, h[128]; + struct stat st; + + if (!pa_get_home_dir(h, sizeof(h))) + return NULL; + + p = pa_sprintf_malloc("%s/.pulse", h); + + if (stat(p, &st) < 0) { + pa_xfree(p); + return NULL; + } + + if (st.st_uid != getuid()) { + pa_xfree(p); + return NULL; + } + + return p; +} +#endif + +static pa_strlist *prepend_per_user(pa_strlist *l) { + char *ufn; + +#ifdef ENABLE_LEGACY_RUNTIME_DIR + static char *legacy_dir; + + /* The very old per-user instance path (< 0.9.11). This is supported only to ease upgrades */ + if ((legacy_dir = get_very_old_legacy_runtime_dir())) { + char *p = pa_sprintf_malloc("%s" PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET, legacy_dir); + l = pa_strlist_prepend(l, p); + pa_xfree(p); + pa_xfree(legacy_dir); + } + + /* The old per-user instance path (< 0.9.12). This is supported only to ease upgrades */ + if ((legacy_dir = get_old_legacy_runtime_dir())) { + char *p = pa_sprintf_malloc("%s" PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET, legacy_dir); + l = pa_strlist_prepend(l, p); + pa_xfree(p); + pa_xfree(legacy_dir); + } +#endif + + /* The per-user instance */ + if ((ufn = pa_runtime_path(PA_NATIVE_DEFAULT_UNIX_SOCKET))) { + l = pa_strlist_prepend(l, ufn); + pa_xfree(ufn); + } + + return l; +} #ifndef OS_IS_WIN32 -static int context_connect_spawn(pa_context *c) { +static int context_autospawn(pa_context *c) { pid_t pid; int status, r; - int fds[2] = { -1, -1} ; - pa_iochannel *io; - - if (getuid() == 0) - return -1; + struct sigaction sa; pa_context_ref(c); - if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds) < 0) { - pa_log_error("socketpair(): %s", pa_cstrerror(errno)); + if (sigaction(SIGCHLD, NULL, &sa) < 0) { + pa_log_debug("sigaction() failed: %s", pa_cstrerror(errno)); pa_context_fail(c, PA_ERR_INTERNAL); goto fail; } - pa_make_fd_cloexec(fds[0]); + if ((sa.sa_flags & SA_NOCLDWAIT) || sa.sa_handler == SIG_IGN) { + pa_log_debug("Process disabled waitpid(), cannot autospawn."); + pa_context_fail(c, PA_ERR_CONNECTIONREFUSED); + goto fail; + } - pa_make_socket_low_delay(fds[0]); - pa_make_socket_low_delay(fds[1]); + pa_log_debug("Trying to autospawn..."); if (c->spawn_api.prefork) c->spawn_api.prefork(); if ((pid = fork()) < 0) { - pa_log_error("fork(): %s", pa_cstrerror(errno)); + pa_log_error(_("fork(): %s"), pa_cstrerror(errno)); pa_context_fail(c, PA_ERR_INTERNAL); if (c->spawn_api.postfork) @@ -576,33 +700,24 @@ static int context_connect_spawn(pa_context *c) { } else if (!pid) { /* Child */ - char t[128]; const char *state = NULL; -#define MAX_ARGS 64 - const char * argv[MAX_ARGS+1]; - int n; - char *f; - - pa_close_all(fds[1], -1); - - f = pa_sprintf_malloc("%i", fds[1]); - pa_set_env("PULSE_PASSED_FD", f); - pa_xfree(f); + const char * argv[32]; + unsigned n = 0; if (c->spawn_api.atfork) c->spawn_api.atfork(); - /* Setup argv */ - - n = 0; + /* We leave most of the cleaning up of the process environment + * to the executable. We only clean up the file descriptors to + * make sure the executable can actually be loaded + * correctly. */ + pa_close_all(-1); + /* Setup argv */ argv[n++] = c->conf->daemon_binary; - argv[n++] = "--daemonize=yes"; - - pa_snprintf(t, sizeof(t), "-Lmodule-native-protocol-fd fd=%i", fds[1]); - argv[n++] = strdup(t); + argv[n++] = "--start"; - while (n < MAX_ARGS) { + while (n < PA_ELEMENTSOF(argv)-1) { char *a; if (!(a = pa_split_spaces(c->conf->extra_arguments, &state))) @@ -612,46 +727,42 @@ static int context_connect_spawn(pa_context *c) { } argv[n++] = NULL; + pa_assert(n <= PA_ELEMENTSOF(argv)); execv(argv[0], (char * const *) argv); _exit(1); -#undef MAX_ARGS } /* Parent */ - pa_assert_se(pa_close(fds[1]) == 0); - fds[1] = -1; - - r = waitpid(pid, &status, 0); - if (c->spawn_api.postfork) c->spawn_api.postfork(); + do { + r = waitpid(pid, &status, 0); + } while (r < 0 && errno == EINTR); + if (r < 0) { - pa_log("waitpid(): %s", pa_cstrerror(errno)); - pa_context_fail(c, PA_ERR_INTERNAL); - goto fail; + + if (errno != ESRCH) { + pa_log(_("waitpid(): %s"), pa_cstrerror(errno)); + pa_context_fail(c, PA_ERR_INTERNAL); + goto fail; + } + + /* hmm, something already reaped our child, so we assume + * startup worked, even if we cannot know */ + } else if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { pa_context_fail(c, PA_ERR_CONNECTIONREFUSED); goto fail; } - c->is_local = TRUE; - - unlock_autospawn_lock_file(c); - - io = pa_iochannel_new(c->mainloop, fds[0], fds[0]); - setup_context(c, io); - pa_context_unref(c); return 0; fail: - pa_close_pipe(fds); - - unlock_autospawn_lock_file(c); pa_context_unref(c); @@ -660,6 +771,47 @@ fail: #endif /* OS_IS_WIN32 */ +static void on_connection(pa_socket_client *client, pa_iochannel*io, void *userdata); + +#ifdef HAVE_DBUS +static void track_pulseaudio_on_dbus(pa_context *c, DBusBusType type, pa_dbus_wrap_connection **conn) { + DBusError error; + + pa_assert(c); + pa_assert(conn); + + dbus_error_init(&error); + + if (!(*conn = pa_dbus_wrap_connection_new(c->mainloop, c->use_rtclock, type, &error)) || dbus_error_is_set(&error)) { + pa_log_warn("Unable to contact DBUS: %s: %s", error.name, error.message); + goto fail; + } + + if (!dbus_connection_add_filter(pa_dbus_wrap_connection_get(*conn), filter_cb, c, NULL)) { + pa_log_warn("Failed to add filter function"); + goto fail; + } + + if (pa_dbus_add_matches( + pa_dbus_wrap_connection_get(*conn), &error, + "type='signal',sender='" DBUS_SERVICE_DBUS "',interface='" DBUS_INTERFACE_DBUS "',member='NameOwnerChanged',arg0='org.pulseaudio.Server',arg1=''", NULL) < 0) { + + pa_log_warn("Unable to track org.pulseaudio.Server: %s: %s", error.name, error.message); + goto fail; + } + + return; + +fail: + if (*conn) { + pa_dbus_wrap_connection_free(*conn); + *conn = NULL; + } + + dbus_error_free(&error); +} +#endif + static int try_next_connection(pa_context *c) { char *u = NULL; int r = -1; @@ -677,12 +829,31 @@ static int try_next_connection(pa_context *c) { #ifndef OS_IS_WIN32 if (c->do_autospawn) { - r = context_connect_spawn(c); - goto finish; + + if ((r = context_autospawn(c)) < 0) + goto finish; + + /* Autospawn only once */ + c->do_autospawn = FALSE; + + /* Connect only to per-user sockets this time */ + c->server_list = prepend_per_user(c->server_list); + + /* Retry connection */ + continue; } #endif - pa_context_fail(c, PA_ERR_CONNECTIONREFUSED); +#ifdef HAVE_DBUS + if (c->no_fail && !c->server_specified) { + if (!c->session_bus) + track_pulseaudio_on_dbus(c, DBUS_BUS_SESSION, &c->session_bus); + if (!c->system_bus) + track_pulseaudio_on_dbus(c, DBUS_BUS_SYSTEM, &c->system_bus); + } else +#endif + pa_context_fail(c, PA_ERR_CONNECTIONREFUSED); + goto finish; } @@ -691,7 +862,7 @@ static int try_next_connection(pa_context *c) { pa_xfree(c->server); c->server = pa_xstrdup(u); - if (!(c->client = pa_socket_client_new_string(c->mainloop, u, PA_NATIVE_DEFAULT_PORT))) + if (!(c->client = pa_socket_client_new_string(c->mainloop, c->use_rtclock, u, PA_NATIVE_DEFAULT_PORT))) continue; c->is_local = !!pa_socket_client_is_local(c->client); @@ -721,7 +892,7 @@ static void on_connection(pa_socket_client *client, pa_iochannel*io, void *userd c->client = NULL; if (!io) { - /* Try the item in the list */ + /* Try the next item in the list */ if (saved_errno == ECONNREFUSED || saved_errno == ETIMEDOUT || saved_errno == EHOSTUNREACH) { @@ -733,31 +904,46 @@ static void on_connection(pa_socket_client *client, pa_iochannel*io, void *userd goto finish; } - unlock_autospawn_lock_file(c); setup_context(c, io); finish: pa_context_unref(c); } +#ifdef HAVE_DBUS +static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *message, void *userdata) { + pa_context *c = userdata; + pa_bool_t is_session; -static char *get_legacy_runtime_dir(void) { - char *p, u[128]; - struct stat st; + pa_assert(bus); + pa_assert(message); + pa_assert(c); - if (!pa_get_user_name(u, sizeof(u))) - return NULL; + if (c->state != PA_CONTEXT_CONNECTING) + goto finish; - p = pa_sprintf_malloc("/tmp/pulse-%s", u); + if (!c->no_fail) + goto finish; - if (stat(p, &st) < 0) - return NULL; + /* FIXME: We probably should check if this is actually the NameOwnerChanged we were looking for */ - if (st.st_uid != getuid()) - return NULL; + is_session = c->session_bus && bus == pa_dbus_wrap_connection_get(c->session_bus); + pa_log_debug("Rock!! PulseAudio might be back on %s bus", is_session ? "session" : "system"); - return p; + if (is_session) + /* The user instance via PF_LOCAL */ + c->server_list = prepend_per_user(c->server_list); + else + /* The system wide instance via PF_LOCAL */ + c->server_list = pa_strlist_prepend(c->server_list, PA_SYSTEM_RUNTIME_PATH PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET); + + if (!c->client) + try_next_connection(c); + +finish: + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; } +#endif int pa_context_connect( pa_context *c, @@ -770,15 +956,20 @@ int pa_context_connect( pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY(c, c->state == PA_CONTEXT_UNCONNECTED, PA_ERR_BADSTATE); - PA_CHECK_VALIDITY(c, !(flags & ~PA_CONTEXT_NOAUTOSPAWN), PA_ERR_INVALID); + PA_CHECK_VALIDITY(c, !(flags & ~(PA_CONTEXT_NOAUTOSPAWN|PA_CONTEXT_NOFAIL)), PA_ERR_INVALID); PA_CHECK_VALIDITY(c, !server || *server, PA_ERR_INVALID); - if (!server) + if (server) + c->conf->autospawn = FALSE; + else server = c->conf->default_server; pa_context_ref(c); + c->no_fail = !!(flags & PA_CONTEXT_NOFAIL); + c->server_specified = !!server; pa_assert(!c->server_list); if (server) { @@ -786,17 +977,15 @@ int pa_context_connect( pa_context_fail(c, PA_ERR_INVALIDSERVER); goto finish; } + } else { - char *d, *ufn; - static char *legacy_dir; + char *d; /* Prepend in reverse order */ + /* Follow the X display */ if ((d = getenv("DISPLAY"))) { - char *e; - d = pa_xstrdup(d); - if ((e = strchr(d, ':'))) - *e = 0; + d = pa_xstrndup(d, strcspn(d, ":")); if (*d) c->server_list = pa_strlist_prepend(c->server_list, d); @@ -804,37 +993,27 @@ int pa_context_connect( pa_xfree(d); } - c->server_list = pa_strlist_prepend(c->server_list, "tcp6:localhost"); - c->server_list = pa_strlist_prepend(c->server_list, "tcp4:localhost"); + /* Add TCP/IP on the localhost */ + c->server_list = pa_strlist_prepend(c->server_list, "tcp6:[::1]"); + c->server_list = pa_strlist_prepend(c->server_list, "tcp4:127.0.0.1"); - /* The system wide instance */ + /* The system wide instance via PF_LOCAL */ c->server_list = pa_strlist_prepend(c->server_list, PA_SYSTEM_RUNTIME_PATH PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET); - /* The old per-user instance path. This is supported only to easy upgrades */ - if ((legacy_dir = get_legacy_runtime_dir())) { - char *p = pa_sprintf_malloc("%s" PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET, legacy_dir); - c->server_list = pa_strlist_prepend(c->server_list, p); - pa_xfree(p); - pa_xfree(legacy_dir); - } - - /* The per-user instance */ - c->server_list = pa_strlist_prepend(c->server_list, ufn = pa_runtime_path(PA_NATIVE_DEFAULT_UNIX_SOCKET)); - pa_xfree(ufn); + /* The user instance via PF_LOCAL */ + c->server_list = prepend_per_user(c->server_list); + } - /* Wrap the connection attempts in a single transaction for sane autospawn locking */ - if (!(flags & PA_CONTEXT_NOAUTOSPAWN) && c->conf->autospawn) { - char *lf; + /* Set up autospawning */ + if (!(flags & PA_CONTEXT_NOAUTOSPAWN) && c->conf->autospawn) { - lf = pa_runtime_path(AUTOSPAWN_LOCK); - pa_assert(c->autospawn_lock_fd <= 0); - c->autospawn_lock_fd = pa_lock_lockfile(lf); - pa_xfree(lf); + if (getuid() == 0) + pa_log_debug("Not doing autospawn since we are root."); + else { + c->do_autospawn = TRUE; if (api) c->spawn_api = *api; - - c->do_autospawn = TRUE; } } @@ -851,6 +1030,9 @@ void pa_context_disconnect(pa_context *c) { pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + if (pa_detect_fork()) + return; + if (PA_CONTEXT_IS_GOOD(c->state)) pa_context_set_state(c, PA_CONTEXT_TERMINATED); } @@ -873,6 +1055,9 @@ void pa_context_set_state_callback(pa_context *c, pa_context_notify_cb_t cb, voi pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + if (pa_detect_fork()) + return; + if (c->state == PA_CONTEXT_TERMINATED || c->state == PA_CONTEXT_FAILED) return; @@ -880,10 +1065,25 @@ void pa_context_set_state_callback(pa_context *c, pa_context_notify_cb_t cb, voi c->state_userdata = userdata; } +void pa_context_set_event_callback(pa_context *c, pa_context_event_cb_t cb, void *userdata) { + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + if (pa_detect_fork()) + return; + + if (c->state == PA_CONTEXT_TERMINATED || c->state == PA_CONTEXT_FAILED) + return; + + c->event_callback = cb; + c->event_userdata = userdata; +} + int pa_context_is_pending(pa_context *c) { pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY(c, PA_CONTEXT_IS_GOOD(c->state), PA_ERR_BADSTATE); return (c->pstream && pa_pstream_is_pending(c->pstream)) || @@ -893,11 +1093,11 @@ int pa_context_is_pending(pa_context *c) { static void set_dispatch_callbacks(pa_operation *o); -static void pdispatch_drain_callback(PA_GCC_UNUSED pa_pdispatch*pd, void *userdata) { +static void pdispatch_drain_callback(pa_pdispatch*pd, void *userdata) { set_dispatch_callbacks(userdata); } -static void pstream_drain_callback(PA_GCC_UNUSED pa_pstream *s, void *userdata) { +static void pstream_drain_callback(pa_pstream *s, void *userdata) { set_dispatch_callbacks(userdata); } @@ -940,6 +1140,7 @@ pa_operation* pa_context_drain(pa_context *c, pa_context_notify_cb_t cb, void *u pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); PA_CHECK_VALIDITY_RETURN_NULL(c, pa_context_is_pending(c), PA_ERR_BADSTATE); @@ -949,7 +1150,7 @@ pa_operation* pa_context_drain(pa_context *c, pa_context_notify_cb_t cb, void *u return o; } -void pa_context_simple_ack_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { +void pa_context_simple_ack_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { pa_operation *o = userdata; int success = 1; @@ -988,6 +1189,7 @@ pa_operation* pa_context_send_simple_command(pa_context *c, uint32_t command, pa pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); o = pa_operation_new(c, NULL, cb, userdata); @@ -1014,6 +1216,7 @@ pa_operation* pa_context_set_default_sink(pa_context *c, const char *name, pa_co pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); @@ -1033,6 +1236,7 @@ pa_operation* pa_context_set_default_source(pa_context *c, const char *name, pa_ pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); @@ -1048,6 +1252,7 @@ int pa_context_is_local(pa_context *c) { pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY_RETURN_ANY(c, !pa_detect_fork(), PA_ERR_FORKED, -1); PA_CHECK_VALIDITY_RETURN_ANY(c, PA_CONTEXT_IS_GOOD(c->state), PA_ERR_BADSTATE, -1); return !!c->is_local; @@ -1060,6 +1265,7 @@ pa_operation* pa_context_set_name(pa_context *c, const char *name, pa_context_su pa_assert(PA_REFCNT_VALUE(c) >= 1); pa_assert(name); + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); if (c->version >= 13) { @@ -1090,8 +1296,8 @@ const char* pa_context_get_server(pa_context *c) { pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); - if (!c->server) - return NULL; + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->server, PA_ERR_NOENTITY); if (*c->server == '{') { char *e = strchr(c->server+1, '}'); @@ -1101,7 +1307,7 @@ const char* pa_context_get_server(pa_context *c) { return c->server; } -uint32_t pa_context_get_protocol_version(PA_GCC_UNUSED pa_context *c) { +uint32_t pa_context_get_protocol_version(pa_context *c) { return PA_PROTOCOL_VERSION; } @@ -1109,6 +1315,7 @@ uint32_t pa_context_get_server_protocol_version(pa_context *c) { pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY_RETURN_ANY(c, !pa_detect_fork(), PA_ERR_FORKED, PA_INVALID_INDEX); PA_CHECK_VALIDITY_RETURN_ANY(c, PA_CONTEXT_IS_GOOD(c->state), PA_ERR_BADSTATE, PA_INVALID_INDEX); return c->version; @@ -1131,6 +1338,7 @@ uint32_t pa_context_get_index(pa_context *c) { pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY_RETURN_ANY(c, !pa_detect_fork(), PA_ERR_FORKED, PA_INVALID_INDEX); PA_CHECK_VALIDITY_RETURN_ANY(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE, PA_INVALID_INDEX); PA_CHECK_VALIDITY_RETURN_ANY(c, c->version >= 13, PA_ERR_NOTSUPPORTED, PA_INVALID_INDEX); @@ -1145,6 +1353,7 @@ pa_operation *pa_context_proplist_update(pa_context *c, pa_update_mode_t mode, p pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY_RETURN_NULL(c, mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, PA_ERR_INVALID); PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 13, PA_ERR_NOTSUPPORTED); @@ -1173,6 +1382,7 @@ pa_operation *pa_context_proplist_remove(pa_context *c, const char *const keys[] pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY_RETURN_NULL(c, keys && keys[0], PA_ERR_INVALID); PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 13, PA_ERR_NOTSUPPORTED); @@ -1195,84 +1405,101 @@ pa_operation *pa_context_proplist_remove(pa_context *c, const char *const keys[] return o; } -void pa_init_proplist(pa_proplist *p) { - int a, b; -#ifndef HAVE_DECL_ENVIRON - extern char **environ; -#endif - char **e; +void pa_command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_context *c = userdata; + uint32_t idx; + const char *name; - pa_assert(p); + pa_assert(pd); + pa_assert(command == PA_COMMAND_EXTENSION); + pa_assert(t); + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); - for (e = environ; *e; e++) { + pa_context_ref(c); - if (pa_startswith(*e, "PULSE_PROP_")) { - size_t kl = strcspn(*e+11, "="); - char *k; + if (c->version < 15) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } - if ((*e)[11+kl] != '=') - continue; + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &name) < 0) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } - if (!pa_utf8_valid(*e+11+kl+1)) - continue; + if (!strcmp(name, "module-stream-restore")) + pa_ext_stream_restore_command(c, tag, t); + else + pa_log(_("Received message for unknown extension '%s'"), name); - k = pa_xstrndup(*e+11, kl); +finish: + pa_context_unref(c); +} - if (pa_proplist_contains(p, k)) { - pa_xfree(k); - continue; - } - pa_proplist_sets(p, k, *e+11+kl+1); - pa_xfree(k); - } - } +void pa_command_client_event(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_context *c = userdata; + pa_proplist *pl = NULL; + const char *event; - if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_ID)) { - char t[32]; - pa_snprintf(t, sizeof(t), "%lu", (unsigned long) getpid()); - pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_ID, t); - } + pa_assert(pd); + pa_assert(command == PA_COMMAND_CLIENT_EVENT); + pa_assert(t); + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); - if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_USER)) { - char t[64]; - if (pa_get_user_name(t, sizeof(t))) { - char *c = pa_utf8_filter(t); - pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_USER, c); - pa_xfree(c); - } + pa_context_ref(c); + + if (c->version < 15) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; } - if (!pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_HOST)) { - char t[64]; - if (pa_get_host_name(t, sizeof(t))) { - char *c = pa_utf8_filter(t); - pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_HOST, c); - pa_xfree(c); - } + pl = pa_proplist_new(); + + if (pa_tagstruct_gets(t, &event) < 0 || + pa_tagstruct_get_proplist(t, pl) < 0 || + !pa_tagstruct_eof(t) || !event) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; } - a = pa_proplist_contains(p, PA_PROP_APPLICATION_PROCESS_BINARY); - b = pa_proplist_contains(p, PA_PROP_APPLICATION_NAME); + if (c->event_callback) + c->event_callback(c, event, pl, c->event_userdata); - if (!a || !b) { - char t[PATH_MAX]; - if (pa_get_binary_name(t, sizeof(t))) { - char *c = pa_utf8_filter(t); +finish: + pa_context_unref(c); - if (!a) - pa_proplist_sets(p, PA_PROP_APPLICATION_PROCESS_BINARY, c); - if (!b) - pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, c); + if (pl) + pa_proplist_free(pl); +} - pa_xfree(c); - } - } +pa_time_event* pa_context_rttime_new(pa_context *c, pa_usec_t usec, pa_time_event_cb_t cb, void *userdata) { + struct timeval tv; + + pa_assert(c); + pa_assert(c->mainloop); - if (!pa_proplist_contains(p, PA_PROP_APPLICATION_LANGUAGE)) { - const char *l; + if (usec == PA_USEC_INVALID) + return c->mainloop->time_new(c->mainloop, NULL, cb, userdata); - if ((l = setlocale(LC_MESSAGES, NULL))) - pa_proplist_sets(p, PA_PROP_APPLICATION_LANGUAGE, l); + pa_timeval_rtstore(&tv, usec, c->use_rtclock); + + return c->mainloop->time_new(c->mainloop, &tv, cb, userdata); +} + +void pa_context_rttime_restart(pa_context *c, pa_time_event *e, pa_usec_t usec) { + struct timeval tv; + + pa_assert(c); + pa_assert(c->mainloop); + + if (usec == PA_USEC_INVALID) + c->mainloop->time_restart(e, NULL); + else { + pa_timeval_rtstore(&tv, usec, c->use_rtclock); + c->mainloop->time_restart(e, &tv); } }