return err;
}
-#define INSMOD_RECURSION_STEP 15
-
-static int concat_options(const char *conf_opts, const char *extra_opts,
- char **opts)
-{
- if (conf_opts == NULL && extra_opts == NULL)
- *opts = NULL;
- else if (conf_opts == NULL)
- *opts = strdup(extra_opts);
- else if (extra_opts == NULL)
- *opts = strdup(conf_opts);
- else if (asprintf(opts, "%s %s", conf_opts, extra_opts) < 0)
- return -ENOMEM;
-
- return 0;
-}
-
-static int insmod_do_insert_module(struct kmod_module *mod, const char *opts)
-{
- int flags = 0, err;
-
- SHOW("insmod %s %s\n", kmod_module_get_path(mod), opts ? opts : "");
-
- if (dry_run)
- return 0;
-
- if (strip_modversion || force)
- flags |= KMOD_INSERT_FORCE_MODVERSION;
- if (strip_vermagic || force)
- flags |= KMOD_INSERT_FORCE_VERMAGIC;
-
- err = kmod_module_insert_module(mod, flags, opts);
- switch (err) {
- case -EEXIST:
- /*
- * We checked for EEXIST with an earlier call to
- * retrieve the initstate, but to avoid a race
- * condition, we don't make any assumptions and handle
- * the error again here
- */
- if (!first_time)
- err = 0;
- else
- ERR("Module %s already in kernel.\n",
- kmod_module_get_name(mod));
- break;
- case -EPERM:
- ERR("could not insert '%s': %s\n", kmod_module_get_name(mod),
- strerror(-err));
- break;
- }
-
- return err;
-
-}
-
-static bool insmod_recursion_has_loop(struct kmod_module *mod,
- struct array *recursion)
-{
- unsigned int i;
-
- /*
- * Don't check every time to not impact normal use cases. If the
- * recursion hits INSMOD_RECURSION_STEP, then search loop in
- * @recursion.
- */
- if ((recursion->count + 1) % INSMOD_RECURSION_STEP != 0)
- return false;
-
- for (i = 0; i < recursion->count; i++) {
- if (recursion->array[i] != mod)
- continue;
-
- ERR("Dependency loop detected while inserting '%s'. Operation aborted.\n",
- kmod_module_get_name(mod));
-
- for (; i < recursion->count; i++)
- ERR("\t%s\n", kmod_module_get_name(recursion->array[i]));
-
- return true;
- }
-
- return false;
-}
-
-static int insmod_do_module(struct kmod_module *mod, const char *extra_opts,
- bool do_dependencies, struct array *recursion);
-
-static int insmod_do_deps_list(struct kmod_list *list,
- bool stop_on_errors, struct array *recursion)
-{
- struct kmod_list *l;
- struct kmod_module *m;
- int r;
-
- if (list == NULL)
- return 0;
-
- m = kmod_module_get_module(list);
- r = insmod_recursion_has_loop(m, recursion);
- kmod_module_unref(m);
-
- if (r)
- return -ELOOP;
-
- kmod_list_foreach(l, list) {
- m = kmod_module_get_module(l);
- array_append(recursion, m);
- r = insmod_do_module(m, NULL, false, recursion);
- kmod_module_unref(m);
- array_pop(recursion);
-
- if (r == -ELOOP)
- return r;
-
- if (r < 0 && stop_on_errors)
- return r;
- }
-
- return 0;
-}
-
-static int insmod_do_module(struct kmod_module *mod, const char *extra_opts,
- bool do_dependencies, struct array *recursion)
-{
- const char *modname = kmod_module_get_name(mod);
- const char *conf_opts = kmod_module_get_options(mod);
- struct kmod_list *pre = NULL, *post = NULL;
- const char *cmd = NULL;
- char *opts = NULL;
- int err;
-
- if (!ignore_commands) {
- err = kmod_module_get_softdeps(mod, &pre, &post);
- if (err < 0) {
- WRN("could not get softdeps of '%s': %s\n",
- modname, strerror(-err));
- return err;
- }
-
- cmd = kmod_module_get_install_commands(mod);
- }
-
- if (cmd == NULL && !ignore_loaded) {
- int state = kmod_module_get_initstate(mod);
-
- if (state == KMOD_MODULE_BUILTIN) {
- if (first_time) {
- err = -EEXIST;
- LOG("Module %s already in kernel (builtin).\n",
- modname);
- } else
- err = 0;
-
- goto error;
- } else if (state == KMOD_MODULE_LIVE) {
- if (first_time) {
- err = -EEXIST;
- LOG("Module %s already in kernel.\n", modname);
-
- } else
- err = 0;
-
- goto error;
- }
- }
-
- if (cmd == NULL && kmod_module_get_path(mod) == NULL) {
- err = -ENOENT;
- LOG("Module %s not found.\n", modname);
- goto error;
- }
-
- err = insmod_do_deps_list(pre, false, recursion);
- if (err == -ELOOP)
- goto error;
-
- if (do_dependencies) {
- struct kmod_list *deps = kmod_module_get_dependencies(mod);
-
- err = insmod_do_deps_list(deps, true, recursion);
- if (err < 0)
- goto error;
- }
-
- if ((err = concat_options(conf_opts, extra_opts, &opts)) < 0)
- goto error;
-
- if (cmd == NULL)
- err = insmod_do_insert_module(mod, opts);
- else
- err = command_do(mod, "install", cmd, NULL);
-
- if (err < 0)
- goto error;
-
- err = insmod_do_deps_list(post, false, recursion);
-
-error:
- kmod_module_unref_list(pre);
- kmod_module_unref_list(post);
- free(opts);
-
- return err;
-}
-
static int handle_failed_lookup(struct kmod_ctx *ctx, const char *alias)
{
struct kmod_module *mod;
return 0;
}
+static void print_action(struct kmod_module *m, bool install,
+ const char *options)
+{
+ if (install)
+ printf("install %s %s\n", kmod_module_get_install_commands(m),
+ options);
+ else
+ printf("insmod %s %s\n", kmod_module_get_path(m), options);
+}
+
static int insmod(struct kmod_ctx *ctx, const char *alias,
const char *extra_options)
{
struct kmod_list *l, *list = NULL;
- int err;
+ int err, flags = 0;
+
+ void (*show)(struct kmod_module *m, bool install,
+ const char *options) = NULL;
err = kmod_module_new_from_lookup(ctx, alias, &list);
if (err < 0)
if (list == NULL)
return handle_failed_lookup(ctx, alias);
- if (use_blacklist) {
- struct kmod_list *filtered = NULL;
- err = kmod_module_get_filtered_blacklist(ctx, list, &filtered);
- DBG("using blacklist: input %p, output=%p\n", list, filtered);
- kmod_module_unref_list(list);
- if (err < 0) {
- LOG("could not filter alias list!\n");
- return err;
- }
- list = filtered;
- }
+ if (strip_modversion || force)
+ flags |= KMOD_PROBE_FORCE_MODVERSION;
+ if (strip_vermagic || force)
+ flags |= KMOD_PROBE_FORCE_VERMAGIC;
+ if (ignore_commands)
+ flags |= KMOD_PROBE_IGNORE_COMMAND;
+ if (ignore_loaded)
+ flags |= KMOD_PROBE_IGNORE_LOADED;
+ if (dry_run)
+ flags |= KMOD_PROBE_DRY_RUN;
+ if (do_show || verbose > DEFAULT_VERBOSE)
+ show = &print_action;
+
+
+ if (use_blacklist)
+ flags |= KMOD_PROBE_APPLY_BLACKLIST;
+ if (first_time)
+ flags |= KMOD_PROBE_STOP_ON_ALREADY_LOADED;
kmod_list_foreach(l, list) {
struct kmod_module *mod = kmod_module_get_module(l);
if (lookup_only)
printf("%s\n", kmod_module_get_name(mod));
else {
- struct array recursion;
+ err = kmod_module_probe_insert_module(mod, flags,
+ extra_options, NULL, NULL, show);
+ }
- array_init(&recursion, INSMOD_RECURSION_STEP);
- err = insmod_do_module(mod, extra_options, true,
- &recursion);
- array_free_array(&recursion);
+ if (err == KMOD_PROBE_STOP_ON_ALREADY_LOADED) {
+ ERR("Module %s already in kernel.\n",
+ kmod_module_get_name(mod));
+ err = -EEXIST;
}
+
kmod_module_unref(mod);
- if (err < 0)
+ if (err != 0)
break;
}
projects / thirdparty / kmod.git / commitdiff
