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-rw-r--r--src/systemd-sysv-generator/sysv-generator.c1039
1 files changed, 1039 insertions, 0 deletions
diff --git a/src/systemd-sysv-generator/sysv-generator.c b/src/systemd-sysv-generator/sysv-generator.c
new file mode 100644
index 0000000000..fe4bbeeb75
--- /dev/null
+++ b/src/systemd-sysv-generator/sysv-generator.c
@@ -0,0 +1,1039 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Thomas H.P. Andersen
+ Copyright 2010 Lennart Poettering
+ Copyright 2011 Michal Schmidt
+
+ systemd 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 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "dirent-util.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "hashmap.h"
+#include "hexdecoct.h"
+#include "install.h"
+#include "log.h"
+#include "mkdir.h"
+#include "path-lookup.h"
+#include "path-util.h"
+#include "set.h"
+#include "special.h"
+#include "stat-util.h"
+#include "string-util.h"
+#include "strv.h"
+#include "unit-name.h"
+#include "util.h"
+
+typedef enum RunlevelType {
+ RUNLEVEL_UP,
+ RUNLEVEL_DOWN
+} RunlevelType;
+
+static const struct {
+ const char *path;
+ const char *target;
+ const RunlevelType type;
+} rcnd_table[] = {
+ /* Standard SysV runlevels for start-up */
+ { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
+ { "rc2.d", SPECIAL_MULTI_USER_TARGET, RUNLEVEL_UP },
+ { "rc3.d", SPECIAL_MULTI_USER_TARGET, RUNLEVEL_UP },
+ { "rc4.d", SPECIAL_MULTI_USER_TARGET, RUNLEVEL_UP },
+ { "rc5.d", SPECIAL_GRAPHICAL_TARGET, RUNLEVEL_UP },
+
+ /* Standard SysV runlevels for shutdown */
+ { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
+ { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
+
+ /* Note that the order here matters, as we read the
+ directories in this order, and we want to make sure that
+ sysv_start_priority is known when we first load the
+ unit. And that value we only know from S links. Hence
+ UP must be read before DOWN */
+};
+
+static const char *arg_dest = "/tmp";
+
+typedef struct SysvStub {
+ char *name;
+ char *path;
+ char *description;
+ int sysv_start_priority;
+ char *pid_file;
+ char **before;
+ char **after;
+ char **wants;
+ char **wanted_by;
+ char **conflicts;
+ bool has_lsb;
+ bool reload;
+ bool loaded;
+} SysvStub;
+
+static void free_sysvstub(SysvStub *s) {
+ if (!s)
+ return;
+
+ free(s->name);
+ free(s->path);
+ free(s->description);
+ free(s->pid_file);
+ strv_free(s->before);
+ strv_free(s->after);
+ strv_free(s->wants);
+ strv_free(s->wanted_by);
+ strv_free(s->conflicts);
+ free(s);
+}
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(SysvStub*, free_sysvstub);
+
+static void free_sysvstub_hashmapp(Hashmap **h) {
+ SysvStub *stub;
+
+ while ((stub = hashmap_steal_first(*h)))
+ free_sysvstub(stub);
+
+ hashmap_free(*h);
+}
+
+static int add_symlink(const char *service, const char *where) {
+ const char *from, *to;
+ int r;
+
+ assert(service);
+ assert(where);
+
+ from = strjoina(arg_dest, "/", service);
+ to = strjoina(arg_dest, "/", where, ".wants/", service);
+
+ mkdir_parents_label(to, 0755);
+
+ r = symlink(from, to);
+ if (r < 0) {
+ if (errno == EEXIST)
+ return 0;
+
+ return -errno;
+ }
+
+ return 1;
+}
+
+static int add_alias(const char *service, const char *alias) {
+ const char *link;
+ int r;
+
+ assert(service);
+ assert(alias);
+
+ link = strjoina(arg_dest, "/", alias);
+
+ r = symlink(service, link);
+ if (r < 0) {
+ if (errno == EEXIST)
+ return 0;
+
+ return -errno;
+ }
+
+ return 1;
+}
+
+static int generate_unit_file(SysvStub *s) {
+ _cleanup_fclose_ FILE *f = NULL;
+ const char *unit;
+ char **p;
+ int r;
+
+ assert(s);
+
+ if (!s->loaded)
+ return 0;
+
+ unit = strjoina(arg_dest, "/", s->name);
+
+ /* We might already have a symlink with the same name from a Provides:,
+ * or from backup files like /etc/init.d/foo.bak. Real scripts always win,
+ * so remove an existing link */
+ if (is_symlink(unit) > 0) {
+ log_warning("Overwriting existing symlink %s with real service.", unit);
+ (void) unlink(unit);
+ }
+
+ f = fopen(unit, "wxe");
+ if (!f)
+ return log_error_errno(errno, "Failed to create unit file %s: %m", unit);
+
+ fprintf(f,
+ "# Automatically generated by systemd-sysv-generator\n\n"
+ "[Unit]\n"
+ "Documentation=man:systemd-sysv-generator(8)\n"
+ "SourcePath=%s\n",
+ s->path);
+
+ if (s->description)
+ fprintf(f, "Description=%s\n", s->description);
+
+ STRV_FOREACH(p, s->before)
+ fprintf(f, "Before=%s\n", *p);
+ STRV_FOREACH(p, s->after)
+ fprintf(f, "After=%s\n", *p);
+ STRV_FOREACH(p, s->wants)
+ fprintf(f, "Wants=%s\n", *p);
+ STRV_FOREACH(p, s->conflicts)
+ fprintf(f, "Conflicts=%s\n", *p);
+
+ fprintf(f,
+ "\n[Service]\n"
+ "Type=forking\n"
+ "Restart=no\n"
+ "TimeoutSec=5min\n"
+ "IgnoreSIGPIPE=no\n"
+ "KillMode=process\n"
+ "GuessMainPID=no\n"
+ "RemainAfterExit=%s\n",
+ yes_no(!s->pid_file));
+
+ if (s->pid_file)
+ fprintf(f, "PIDFile=%s\n", s->pid_file);
+
+ fprintf(f,
+ "ExecStart=%s start\n"
+ "ExecStop=%s stop\n",
+ s->path, s->path);
+
+ if (s->reload)
+ fprintf(f, "ExecReload=%s reload\n", s->path);
+
+ r = fflush_and_check(f);
+ if (r < 0)
+ return log_error_errno(r, "Failed to write unit %s: %m", unit);
+
+ STRV_FOREACH(p, s->wanted_by) {
+ r = add_symlink(s->name, *p);
+ if (r < 0)
+ log_warning_errno(r, "Failed to create 'Wants' symlink to %s, ignoring: %m", *p);
+ }
+
+ return 1;
+}
+
+static bool usage_contains_reload(const char *line) {
+ return (strcasestr(line, "{reload|") ||
+ strcasestr(line, "{reload}") ||
+ strcasestr(line, "{reload\"") ||
+ strcasestr(line, "|reload|") ||
+ strcasestr(line, "|reload}") ||
+ strcasestr(line, "|reload\""));
+}
+
+static char *sysv_translate_name(const char *name) {
+ _cleanup_free_ char *c = NULL;
+ char *res;
+
+ c = strdup(name);
+ if (!c)
+ return NULL;
+
+ res = endswith(c, ".sh");
+ if (res)
+ *res = 0;
+
+ if (unit_name_mangle(c, UNIT_NAME_NOGLOB, &res) < 0)
+ return NULL;
+
+ return res;
+}
+
+static int sysv_translate_facility(const char *name, const char *filename, char **ret) {
+
+ /* We silently ignore the $ prefix here. According to the LSB
+ * spec it simply indicates whether something is a
+ * standardized name or a distribution-specific one. Since we
+ * just follow what already exists and do not introduce new
+ * uses or names we don't care who introduced a new name. */
+
+ static const char * const table[] = {
+ /* LSB defined facilities */
+ "local_fs", NULL,
+ "network", SPECIAL_NETWORK_ONLINE_TARGET,
+ "named", SPECIAL_NSS_LOOKUP_TARGET,
+ "portmap", SPECIAL_RPCBIND_TARGET,
+ "remote_fs", SPECIAL_REMOTE_FS_TARGET,
+ "syslog", NULL,
+ "time", SPECIAL_TIME_SYNC_TARGET,
+ };
+
+ char *filename_no_sh, *e, *m;
+ const char *n;
+ unsigned i;
+ int r;
+
+ assert(name);
+ assert(filename);
+ assert(ret);
+
+ n = *name == '$' ? name + 1 : name;
+
+ for (i = 0; i < ELEMENTSOF(table); i += 2) {
+ if (!streq(table[i], n))
+ continue;
+
+ if (!table[i+1])
+ return 0;
+
+ m = strdup(table[i+1]);
+ if (!m)
+ return log_oom();
+
+ *ret = m;
+ return 1;
+ }
+
+ /* If we don't know this name, fallback heuristics to figure
+ * out whether something is a target or a service alias. */
+
+ /* Facilities starting with $ are most likely targets */
+ if (*name == '$') {
+ r = unit_name_build(n, NULL, ".target", ret);
+ if (r < 0)
+ return log_error_errno(r, "Failed to build name: %m");
+
+ return r;
+ }
+
+ /* Strip ".sh" suffix from file name for comparison */
+ filename_no_sh = strdupa(filename);
+ e = endswith(filename_no_sh, ".sh");
+ if (e) {
+ *e = '\0';
+ filename = filename_no_sh;
+ }
+
+ /* Names equaling the file name of the services are redundant */
+ if (streq_ptr(n, filename))
+ return 0;
+
+ /* Everything else we assume to be normal service names */
+ m = sysv_translate_name(n);
+ if (!m)
+ return log_oom();
+
+ *ret = m;
+ return 1;
+}
+
+static int handle_provides(SysvStub *s, unsigned line, const char *full_text, const char *text) {
+ int r;
+
+ assert(s);
+ assert(full_text);
+ assert(text);
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL, *m = NULL;
+
+ r = extract_first_word(&text, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse word from provides string: %m");
+ if (r == 0)
+ break;
+
+ r = sysv_translate_facility(word, basename(s->path), &m);
+ if (r <= 0) /* continue on error */
+ continue;
+
+ switch (unit_name_to_type(m)) {
+
+ case UNIT_SERVICE:
+ log_debug("Adding Provides: alias '%s' for '%s'", m, s->name);
+ r = add_alias(s->name, m);
+ if (r < 0)
+ log_warning_errno(r, "[%s:%u] Failed to add LSB Provides name %s, ignoring: %m", s->path, line, m);
+ break;
+
+ case UNIT_TARGET:
+
+ /* NB: SysV targets which are provided by a
+ * service are pulled in by the services, as
+ * an indication that the generic service is
+ * now available. This is strictly one-way.
+ * The targets do NOT pull in SysV services! */
+
+ r = strv_extend(&s->before, m);
+ if (r < 0)
+ return log_oom();
+
+ r = strv_extend(&s->wants, m);
+ if (r < 0)
+ return log_oom();
+
+ if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET)) {
+ r = strv_extend(&s->before, SPECIAL_NETWORK_TARGET);
+ if (r < 0)
+ return log_oom();
+ }
+
+ break;
+
+ case _UNIT_TYPE_INVALID:
+ log_warning("Unit name '%s' is invalid", m);
+ break;
+
+ default:
+ log_warning("Unknown unit type for unit '%s'", m);
+ }
+ }
+
+ return 0;
+}
+
+static int handle_dependencies(SysvStub *s, unsigned line, const char *full_text, const char *text) {
+ int r;
+
+ assert(s);
+ assert(full_text);
+ assert(text);
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL, *m = NULL;
+ bool is_before;
+
+ r = extract_first_word(&text, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse word from provides string: %m");
+ if (r == 0)
+ break;
+
+ r = sysv_translate_facility(word, basename(s->path), &m);
+ if (r <= 0) /* continue on error */
+ continue;
+
+ is_before = startswith_no_case(full_text, "X-Start-Before:");
+
+ if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET) && !is_before) {
+ /* the network-online target is special, as it needs to be actively pulled in */
+ r = strv_extend(&s->after, m);
+ if (r < 0)
+ return log_oom();
+
+ r = strv_extend(&s->wants, m);
+ } else
+ r = strv_extend(is_before ? &s->before : &s->after, m);
+ if (r < 0)
+ return log_oom();
+ }
+
+ return 0;
+}
+
+static int load_sysv(SysvStub *s) {
+ _cleanup_fclose_ FILE *f;
+ unsigned line = 0;
+ int r;
+ enum {
+ NORMAL,
+ DESCRIPTION,
+ LSB,
+ LSB_DESCRIPTION,
+ USAGE_CONTINUATION
+ } state = NORMAL;
+ _cleanup_free_ char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL;
+ char *description;
+ bool supports_reload = false;
+ char l[LINE_MAX];
+
+ assert(s);
+
+ f = fopen(s->path, "re");
+ if (!f) {
+ if (errno == ENOENT)
+ return 0;
+
+ return log_error_errno(errno, "Failed to open %s: %m", s->path);
+ }
+
+ log_debug("Loading SysV script %s", s->path);
+
+ FOREACH_LINE(l, f, goto fail) {
+ char *t;
+
+ line++;
+
+ t = strstrip(l);
+ if (*t != '#') {
+ /* Try to figure out whether this init script supports
+ * the reload operation. This heuristic looks for
+ * "Usage" lines which include the reload option. */
+ if ( state == USAGE_CONTINUATION ||
+ (state == NORMAL && strcasestr(t, "usage"))) {
+ if (usage_contains_reload(t)) {
+ supports_reload = true;
+ state = NORMAL;
+ } else if (t[strlen(t)-1] == '\\')
+ state = USAGE_CONTINUATION;
+ else
+ state = NORMAL;
+ }
+
+ continue;
+ }
+
+ if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
+ state = LSB;
+ s->has_lsb = true;
+ continue;
+ }
+
+ if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
+ state = NORMAL;
+ continue;
+ }
+
+ t++;
+ t += strspn(t, WHITESPACE);
+
+ if (state == NORMAL) {
+
+ /* Try to parse Red Hat style description */
+
+ if (startswith_no_case(t, "description:")) {
+
+ size_t k;
+ const char *j;
+
+ k = strlen(t);
+ if (k > 0 && t[k-1] == '\\') {
+ state = DESCRIPTION;
+ t[k-1] = 0;
+ }
+
+ j = strstrip(t+12);
+ if (isempty(j))
+ j = NULL;
+
+ r = free_and_strdup(&chkconfig_description, j);
+ if (r < 0)
+ return log_oom();
+
+ } else if (startswith_no_case(t, "pidfile:")) {
+ const char *fn;
+
+ state = NORMAL;
+
+ fn = strstrip(t+8);
+ if (!path_is_absolute(fn)) {
+ log_error("[%s:%u] PID file not absolute. Ignoring.", s->path, line);
+ continue;
+ }
+
+ r = free_and_strdup(&s->pid_file, fn);
+ if (r < 0)
+ return log_oom();
+ }
+
+ } else if (state == DESCRIPTION) {
+
+ /* Try to parse Red Hat style description
+ * continuation */
+
+ size_t k;
+ char *j;
+
+ k = strlen(t);
+ if (k > 0 && t[k-1] == '\\')
+ t[k-1] = 0;
+ else
+ state = NORMAL;
+
+ j = strstrip(t);
+ if (!isempty(j)) {
+ char *d = NULL;
+
+ if (chkconfig_description)
+ d = strjoin(chkconfig_description, " ", j, NULL);
+ else
+ d = strdup(j);
+ if (!d)
+ return log_oom();
+
+ free(chkconfig_description);
+ chkconfig_description = d;
+ }
+
+ } else if (state == LSB || state == LSB_DESCRIPTION) {
+
+ if (startswith_no_case(t, "Provides:")) {
+ state = LSB;
+
+ r = handle_provides(s, line, t, t + 9);
+ if (r < 0)
+ return r;
+
+ } else if (startswith_no_case(t, "Required-Start:") ||
+ startswith_no_case(t, "Should-Start:") ||
+ startswith_no_case(t, "X-Start-Before:") ||
+ startswith_no_case(t, "X-Start-After:")) {
+
+ state = LSB;
+
+ r = handle_dependencies(s, line, t, strchr(t, ':') + 1);
+ if (r < 0)
+ return r;
+
+ } else if (startswith_no_case(t, "Description:")) {
+ const char *j;
+
+ state = LSB_DESCRIPTION;
+
+ j = strstrip(t+12);
+ if (isempty(j))
+ j = NULL;
+
+ r = free_and_strdup(&long_description, j);
+ if (r < 0)
+ return log_oom();
+
+ } else if (startswith_no_case(t, "Short-Description:")) {
+ const char *j;
+
+ state = LSB;
+
+ j = strstrip(t+18);
+ if (isempty(j))
+ j = NULL;
+
+ r = free_and_strdup(&short_description, j);
+ if (r < 0)
+ return log_oom();
+
+ } else if (state == LSB_DESCRIPTION) {
+
+ if (startswith(l, "#\t") || startswith(l, "# ")) {
+ const char *j;
+
+ j = strstrip(t);
+ if (!isempty(j)) {
+ char *d = NULL;
+
+ if (long_description)
+ d = strjoin(long_description, " ", t, NULL);
+ else
+ d = strdup(j);
+ if (!d)
+ return log_oom();
+
+ free(long_description);
+ long_description = d;
+ }
+
+ } else
+ state = LSB;
+ }
+ }
+ }
+
+ s->reload = supports_reload;
+
+ /* We use the long description only if
+ * no short description is set. */
+
+ if (short_description)
+ description = short_description;
+ else if (chkconfig_description)
+ description = chkconfig_description;
+ else if (long_description)
+ description = long_description;
+ else
+ description = NULL;
+
+ if (description) {
+ char *d;
+
+ d = strappend(s->has_lsb ? "LSB: " : "SYSV: ", description);
+ if (!d)
+ return log_oom();
+
+ s->description = d;
+ }
+
+ s->loaded = true;
+ return 0;
+
+fail:
+ return log_error_errno(errno, "Failed to read configuration file '%s': %m", s->path);
+}
+
+static int fix_order(SysvStub *s, Hashmap *all_services) {
+ SysvStub *other;
+ Iterator j;
+ int r;
+
+ assert(s);
+
+ if (!s->loaded)
+ return 0;
+
+ if (s->sysv_start_priority < 0)
+ return 0;
+
+ HASHMAP_FOREACH(other, all_services, j) {
+ if (s == other)
+ continue;
+
+ if (!other->loaded)
+ continue;
+
+ if (other->sysv_start_priority < 0)
+ continue;
+
+ /* If both units have modern headers we don't care
+ * about the priorities */
+ if (s->has_lsb && other->has_lsb)
+ continue;
+
+ if (other->sysv_start_priority < s->sysv_start_priority) {
+ r = strv_extend(&s->after, other->name);
+ if (r < 0)
+ return log_oom();
+
+ } else if (other->sysv_start_priority > s->sysv_start_priority) {
+ r = strv_extend(&s->before, other->name);
+ if (r < 0)
+ return log_oom();
+ } else
+ continue;
+
+ /* FIXME: Maybe we should compare the name here lexicographically? */
+ }
+
+ return 0;
+}
+
+static int acquire_search_path(const char *def, const char *envvar, char ***ret) {
+ _cleanup_strv_free_ char **l = NULL;
+ const char *e;
+ int r;
+
+ assert(def);
+ assert(envvar);
+
+ e = getenv(envvar);
+ if (e) {
+ r = path_split_and_make_absolute(e, &l);
+ if (r < 0)
+ return log_error_errno(r, "Failed to make $%s search path absolute: %m", envvar);
+ }
+
+ if (strv_isempty(l)) {
+ strv_free(l);
+
+ l = strv_new(def, NULL);
+ if (!l)
+ return log_oom();
+ }
+
+ if (!path_strv_resolve_uniq(l, NULL))
+ return log_oom();
+
+ *ret = l;
+ l = NULL;
+
+ return 0;
+}
+
+static int enumerate_sysv(const LookupPaths *lp, Hashmap *all_services) {
+ _cleanup_strv_free_ char **sysvinit_path = NULL;
+ char **path;
+ int r;
+
+ assert(lp);
+
+ r = acquire_search_path(SYSTEM_SYSVINIT_PATH, "SYSTEMD_SYSVINIT_PATH", &sysvinit_path);
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(path, sysvinit_path) {
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de;
+
+ d = opendir(*path);
+ if (!d) {
+ if (errno != ENOENT)
+ log_warning_errno(errno, "Opening %s failed, ignoring: %m", *path);
+ continue;
+ }
+
+ FOREACH_DIRENT(de, d, log_error_errno(errno, "Failed to enumerate directory %s, ignoring: %m", *path)) {
+ _cleanup_free_ char *fpath = NULL, *name = NULL;
+ _cleanup_(free_sysvstubp) SysvStub *service = NULL;
+ struct stat st;
+
+ if (fstatat(dirfd(d), de->d_name, &st, 0) < 0) {
+ log_warning_errno(errno, "stat() failed on %s/%s, ignoring: %m", *path, de->d_name);
+ continue;
+ }
+
+ if (!(st.st_mode & S_IXUSR))
+ continue;
+
+ if (!S_ISREG(st.st_mode))
+ continue;
+
+ name = sysv_translate_name(de->d_name);
+ if (!name)
+ return log_oom();
+
+ if (hashmap_contains(all_services, name))
+ continue;
+
+ r = unit_file_exists(UNIT_FILE_SYSTEM, lp, name);
+ if (r < 0 && !IN_SET(r, -ELOOP, -ERFKILL, -EADDRNOTAVAIL)) {
+ log_debug_errno(r, "Failed to detect whether %s exists, skipping: %m", name);
+ continue;
+ } else if (r != 0) {
+ log_debug("Native unit for %s already exists, skipping.", name);
+ continue;
+ }
+
+ fpath = strjoin(*path, "/", de->d_name, NULL);
+ if (!fpath)
+ return log_oom();
+
+ service = new0(SysvStub, 1);
+ if (!service)
+ return log_oom();
+
+ service->sysv_start_priority = -1;
+ service->name = name;
+ service->path = fpath;
+ name = fpath = NULL;
+
+ r = hashmap_put(all_services, service->name, service);
+ if (r < 0)
+ return log_oom();
+
+ service = NULL;
+ }
+ }
+
+ return 0;
+}
+
+static int set_dependencies_from_rcnd(const LookupPaths *lp, Hashmap *all_services) {
+ Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
+ _cleanup_set_free_ Set *shutdown_services = NULL;
+ _cleanup_strv_free_ char **sysvrcnd_path = NULL;
+ SysvStub *service;
+ unsigned i;
+ Iterator j;
+ char **p;
+ int r;
+
+ assert(lp);
+
+ r = acquire_search_path(SYSTEM_SYSVRCND_PATH, "SYSTEMD_SYSVRCND_PATH", &sysvrcnd_path);
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(p, sysvrcnd_path) {
+ for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
+
+ _cleanup_closedir_ DIR *d = NULL;
+ _cleanup_free_ char *path = NULL;
+ struct dirent *de;
+
+ path = strjoin(*p, "/", rcnd_table[i].path, NULL);
+ if (!path) {
+ r = log_oom();
+ goto finish;
+ }
+
+ d = opendir(path);
+ if (!d) {
+ if (errno != ENOENT)
+ log_warning_errno(errno, "Opening %s failed, ignoring: %m", path);
+
+ continue;
+ }
+
+ FOREACH_DIRENT(de, d, log_error_errno(errno, "Failed to enumerate directory %s, ignoring: %m", path)) {
+ _cleanup_free_ char *name = NULL, *fpath = NULL;
+ int a, b;
+
+ if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
+ continue;
+
+ if (strlen(de->d_name) < 4)
+ continue;
+
+ a = undecchar(de->d_name[1]);
+ b = undecchar(de->d_name[2]);
+
+ if (a < 0 || b < 0)
+ continue;
+
+ fpath = strjoin(*p, "/", de->d_name, NULL);
+ if (!fpath) {
+ r = log_oom();
+ goto finish;
+ }
+
+ name = sysv_translate_name(de->d_name + 3);
+ if (!name) {
+ r = log_oom();
+ goto finish;
+ }
+
+ service = hashmap_get(all_services, name);
+ if (!service) {
+ log_debug("Ignoring %s symlink in %s, not generating %s.", de->d_name, rcnd_table[i].path, name);
+ continue;
+ }
+
+ if (de->d_name[0] == 'S') {
+
+ if (rcnd_table[i].type == RUNLEVEL_UP)
+ service->sysv_start_priority = MAX(a*10 + b, service->sysv_start_priority);
+
+ r = set_ensure_allocated(&runlevel_services[i], NULL);
+ if (r < 0) {
+ log_oom();
+ goto finish;
+ }
+
+ r = set_put(runlevel_services[i], service);
+ if (r < 0) {
+ log_oom();
+ goto finish;
+ }
+
+ } else if (de->d_name[0] == 'K' &&
+ (rcnd_table[i].type == RUNLEVEL_DOWN)) {
+
+ r = set_ensure_allocated(&shutdown_services, NULL);
+ if (r < 0) {
+ log_oom();
+ goto finish;
+ }
+
+ r = set_put(shutdown_services, service);
+ if (r < 0) {
+ log_oom();
+ goto finish;
+ }
+ }
+ }
+ }
+ }
+
+
+ for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
+ SET_FOREACH(service, runlevel_services[i], j) {
+ r = strv_extend(&service->before, rcnd_table[i].target);
+ if (r < 0) {
+ log_oom();
+ goto finish;
+ }
+ r = strv_extend(&service->wanted_by, rcnd_table[i].target);
+ if (r < 0) {
+ log_oom();
+ goto finish;
+ }
+ }
+
+ SET_FOREACH(service, shutdown_services, j) {
+ r = strv_extend(&service->before, SPECIAL_SHUTDOWN_TARGET);
+ if (r < 0) {
+ log_oom();
+ goto finish;
+ }
+ r = strv_extend(&service->conflicts, SPECIAL_SHUTDOWN_TARGET);
+ if (r < 0) {
+ log_oom();
+ goto finish;
+ }
+ }
+
+ r = 0;
+
+finish:
+ for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
+ set_free(runlevel_services[i]);
+
+ return r;
+}
+
+int main(int argc, char *argv[]) {
+ _cleanup_(free_sysvstub_hashmapp) Hashmap *all_services = NULL;
+ _cleanup_lookup_paths_free_ LookupPaths lp = {};
+ SysvStub *service;
+ Iterator j;
+ int r;
+
+ if (argc > 1 && argc != 4) {
+ log_error("This program takes three or no arguments.");
+ return EXIT_FAILURE;
+ }
+
+ if (argc > 1)
+ arg_dest = argv[3];
+
+ log_set_target(LOG_TARGET_SAFE);
+ log_parse_environment();
+ log_open();
+
+ umask(0022);
+
+ r = lookup_paths_init(&lp, UNIT_FILE_SYSTEM, LOOKUP_PATHS_EXCLUDE_GENERATED, NULL);
+ if (r < 0) {
+ log_error_errno(r, "Failed to find lookup paths: %m");
+ goto finish;
+ }
+
+ all_services = hashmap_new(&string_hash_ops);
+ if (!all_services) {
+ r = log_oom();
+ goto finish;
+ }
+
+ r = enumerate_sysv(&lp, all_services);
+ if (r < 0)
+ goto finish;
+
+ r = set_dependencies_from_rcnd(&lp, all_services);
+ if (r < 0)
+ goto finish;
+
+ HASHMAP_FOREACH(service, all_services, j)
+ (void) load_sysv(service);
+
+ HASHMAP_FOREACH(service, all_services, j) {
+ (void) fix_order(service, all_services);
+ (void) generate_unit_file(service);
+ }
+
+ r = 0;
+
+finish:
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-03 07:30:42 +0000