X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fmanager.c;h=4dcdf2e507df4b7b0e54bbc54a3d047e6563f075;hp=b4b963a66265e5c006aabb1c4e1b0a6530befbf6;hb=84e3543ef4c4758621f8a304b14642072303ef82;hpb=2ded0c0442f597dc397f7b0e9a15cf453578d11e diff --git a/src/manager.c b/src/manager.c index b4b963a66..4dcdf2e50 100644 --- a/src/manager.c +++ b/src/manager.c @@ -52,6 +52,7 @@ #include "dbus-unit.h" #include "dbus-job.h" #include "missing.h" +#include "path-lookup.h" /* As soon as 16 units are in our GC queue, make sure to run a gc sweep */ #define GC_QUEUE_ENTRIES_MAX 16 @@ -122,240 +123,6 @@ static int manager_setup_signals(Manager *m) { return 0; } -static char** session_dirs(void) { - const char *home, *e; - char *config_home = NULL, *data_home = NULL; - char **config_dirs = NULL, **data_dirs = NULL; - char **r = NULL, **t; - - /* Implement the mechanisms defined in - * - * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html - * - * We look in both the config and the data dirs because we - * want to encourage that distributors ship their unit files - * as data, and allow overriding as configuration. - */ - - home = getenv("HOME"); - - if ((e = getenv("XDG_CONFIG_HOME"))) { - if (asprintf(&config_home, "%s/systemd/session", e) < 0) - goto fail; - - } else if (home) { - if (asprintf(&config_home, "%s/.config/systemd/session", home) < 0) - goto fail; - } - - if ((e = getenv("XDG_CONFIG_DIRS"))) - if (!(config_dirs = strv_split(e, ":"))) - goto fail; - - /* We don't treat /etc/xdg/systemd here as the spec - * suggests because we assume that that is a link to - * /etc/systemd/ anyway. */ - - if ((e = getenv("XDG_DATA_HOME"))) { - if (asprintf(&data_home, "%s/systemd/session", e) < 0) - goto fail; - - } else if (home) { - if (asprintf(&data_home, "%s/.local/share/systemd/session", home) < 0) - goto fail; - - /* There is really no need for two unit dirs in $HOME, - * except to be fully compliant with the XDG spec. We - * now try to link the two dirs, so that we can - * minimize disk seeks a little. Further down we'll - * then filter out this link, if it is actually is - * one. */ - - mkdir_parents(data_home, 0777); - symlink("../../../.config/systemd/session", data_home); - } - - if ((e = getenv("XDG_DATA_DIRS"))) - data_dirs = strv_split(e, ":"); - else - data_dirs = strv_new("/usr/local/share", "/usr/share", NULL); - - if (!data_dirs) - goto fail; - - /* Now merge everything we found. */ - if (config_home) { - if (!(t = strv_append(r, config_home))) - goto fail; - strv_free(r); - r = t; - } - - if (!(t = strv_merge_concat(r, config_dirs, "/systemd/session"))) - goto finish; - strv_free(r); - r = t; - - if (!(t = strv_append(r, SESSION_CONFIG_UNIT_PATH))) - goto fail; - strv_free(r); - r = t; - - if (data_home) { - if (!(t = strv_append(r, data_home))) - goto fail; - strv_free(r); - r = t; - } - - if (!(t = strv_merge_concat(r, data_dirs, "/systemd/session"))) - goto fail; - strv_free(r); - r = t; - - if (!(t = strv_append(r, SESSION_DATA_UNIT_PATH))) - goto fail; - strv_free(r); - r = t; - - if (!strv_path_make_absolute_cwd(r)) - goto fail; - -finish: - free(config_home); - strv_free(config_dirs); - free(data_home); - strv_free(data_dirs); - - return r; - -fail: - strv_free(r); - r = NULL; - goto finish; -} - -static int manager_find_paths(Manager *m) { - const char *e; - char *t; - - assert(m); - - /* Unset previous data, in case we are called on reload */ - strv_free(m->unit_path); - strv_free(m->sysvinit_path); - strv_free(m->sysvrcnd_path); - m->unit_path = m->sysvinit_path = m->sysvrcnd_path = NULL; - - /* First priority is whatever has been passed to us via env - * vars */ - if ((e = getenv("SYSTEMD_UNIT_PATH"))) - if (!(m->unit_path = split_path_and_make_absolute(e))) - return -ENOMEM; - - if (strv_isempty(m->unit_path)) { - - /* Nothing is set, so let's figure something out. */ - strv_free(m->unit_path); - - if (m->running_as == MANAGER_SESSION) { - if (!(m->unit_path = session_dirs())) - return -ENOMEM; - } else - if (!(m->unit_path = strv_new( - SYSTEM_CONFIG_UNIT_PATH, /* /etc/systemd/system/ */ - SYSTEM_DATA_UNIT_PATH, /* /lib/systemd/system/ */ - NULL))) - return -ENOMEM; - } - - if (m->running_as == MANAGER_INIT) { - /* /etc/init.d/ compatibility does not matter to users */ - - if ((e = getenv("SYSTEMD_SYSVINIT_PATH"))) - if (!(m->sysvinit_path = split_path_and_make_absolute(e))) - return -ENOMEM; - - if (strv_isempty(m->sysvinit_path)) { - strv_free(m->sysvinit_path); - - if (!(m->sysvinit_path = strv_new( - SYSTEM_SYSVINIT_PATH, /* /etc/init.d/ */ - NULL))) - return -ENOMEM; - } - - if ((e = getenv("SYSTEMD_SYSVRCND_PATH"))) - if (!(m->sysvrcnd_path = split_path_and_make_absolute(e))) - return -ENOMEM; - - if (strv_isempty(m->sysvrcnd_path)) { - strv_free(m->sysvrcnd_path); - - if (!(m->sysvrcnd_path = strv_new( - SYSTEM_SYSVRCND_PATH, /* /etc/rcN.d/ */ - NULL))) - return -ENOMEM; - } - } - - if (m->unit_path) - if (!strv_path_canonicalize(m->unit_path)) - return -ENOMEM; - - if (m->sysvinit_path) - if (!strv_path_canonicalize(m->sysvinit_path)) - return -ENOMEM; - - if (m->sysvrcnd_path) - if (!strv_path_canonicalize(m->sysvrcnd_path)) - return -ENOMEM; - - strv_uniq(m->unit_path); - strv_uniq(m->sysvinit_path); - strv_uniq(m->sysvrcnd_path); - - if (!strv_isempty(m->unit_path)) { - - if (!(t = strv_join(m->unit_path, "\n\t"))) - return -ENOMEM; - log_debug("Looking for unit files in:\n\t%s", t); - free(t); - } else { - log_debug("Ignoring unit files."); - strv_free(m->unit_path); - m->unit_path = NULL; - } - - if (!strv_isempty(m->sysvinit_path)) { - - if (!(t = strv_join(m->sysvinit_path, "\n\t"))) - return -ENOMEM; - - log_debug("Looking for SysV init scripts in:\n\t%s", t); - free(t); - } else { - log_debug("Ignoring SysV init scripts."); - strv_free(m->sysvinit_path); - m->sysvinit_path = NULL; - } - - if (!strv_isempty(m->sysvrcnd_path)) { - - if (!(t = strv_join(m->sysvrcnd_path, "\n\t"))) - return -ENOMEM; - - log_debug("Looking for SysV rcN.d links in:\n\t%s", t); - free(t); - } else { - log_debug("Ignoring SysV rcN.d links."); - strv_free(m->sysvrcnd_path); - m->sysvrcnd_path = NULL; - } - - return 0; -} - int manager_new(ManagerRunningAs running_as, bool confirm_spawn, Manager **_m) { Manager *m; int r = -ENOMEM; @@ -401,7 +168,7 @@ int manager_new(ManagerRunningAs running_as, bool confirm_spawn, Manager **_m) { if ((m->epoll_fd = epoll_create1(EPOLL_CLOEXEC)) < 0) goto fail; - if ((r = manager_find_paths(m)) < 0) + if ((r = lookup_paths_init(&m->lookup_paths, m->running_as)) < 0) goto fail; if ((r = manager_setup_signals(m)) < 0) @@ -598,9 +365,7 @@ void manager_free(Manager *m) { if (m->signal_watch.fd >= 0) close_nointr_nofail(m->signal_watch.fd); - strv_free(m->unit_path); - strv_free(m->sysvinit_path); - strv_free(m->sysvrcnd_path); + lookup_paths_free(&m->lookup_paths); strv_free(m->environment); free(m->cgroup_controller); @@ -2353,7 +2118,8 @@ int manager_reload(Manager *m) { manager_clear_jobs_and_units(m); /* Find new unit paths */ - if ((q = manager_find_paths(m)) < 0) + lookup_paths_free(&m->lookup_paths); + if ((q = lookup_paths_init(&m->lookup_paths, m->running_as)) < 0) r = q; /* First, enumerate what we can from all config files */