mirror of
https://github.com/systemd/systemd.git
synced 2025-03-25 18:50:18 +03:00
builtin: kmod - switch to kmod_module_probe_insert_module()
This commit is contained in:
Kay Sievers
parent
3cf5266b02
commit
fe6784cfd4
@ -33,289 +33,41 @@
|
||||
|
||||
static struct kmod_ctx *ctx;
|
||||
|
||||
static int command_do(struct kmod_module *module, const char *type, const char *command, const char *cmdline_opts)
|
||||
static int load_module(struct udev *udev, const char *alias)
|
||||
{
|
||||
const char *modname = kmod_module_get_name(module);
|
||||
char *p, *cmd = NULL;
|
||||
size_t cmdlen, cmdline_opts_len, varlen;
|
||||
int ret = 0;
|
||||
|
||||
if (cmdline_opts == NULL)
|
||||
cmdline_opts = "";
|
||||
cmdline_opts_len = strlen(cmdline_opts);
|
||||
|
||||
cmd = strdup(command);
|
||||
if (cmd == NULL)
|
||||
return -ENOMEM;
|
||||
cmdlen = strlen(cmd);
|
||||
varlen = sizeof("$CMDLINE_OPTS") - 1;
|
||||
while ((p = strstr(cmd, "$CMDLINE_OPTS")) != NULL) {
|
||||
size_t prefixlen = p - cmd;
|
||||
size_t suffixlen = cmdlen - prefixlen - varlen;
|
||||
size_t slen = cmdlen - varlen + cmdline_opts_len;
|
||||
char *suffix = p + varlen;
|
||||
char *s = malloc(slen + 1);
|
||||
if (s == NULL) {
|
||||
free(cmd);
|
||||
return -ENOMEM;
|
||||
}
|
||||
memcpy(s, cmd, p - cmd);
|
||||
memcpy(s + prefixlen, cmdline_opts, cmdline_opts_len);
|
||||
memcpy(s + prefixlen + cmdline_opts_len, suffix, suffixlen);
|
||||
s[slen] = '\0';
|
||||
|
||||
free(cmd);
|
||||
cmd = s;
|
||||
cmdlen = slen;
|
||||
}
|
||||
|
||||
setenv("MODPROBE_MODULE", modname, 1);
|
||||
ret = system(cmd);
|
||||
unsetenv("MODPROBE_MODULE");
|
||||
if (ret == -1 || WEXITSTATUS(ret)) {
|
||||
//LOG("Error running %s command for %s\n", type, modname);
|
||||
if (ret != -1)
|
||||
ret = -WEXITSTATUS(ret);
|
||||
}
|
||||
|
||||
end:
|
||||
free(cmd);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int insmod_do_dependencies(struct kmod_module *parent);
|
||||
static int insmod_do_soft_dependencies(struct kmod_module *mod, struct kmod_list *deps);
|
||||
|
||||
static int insmod_do_deps_list(struct kmod_module *parent, struct kmod_list *deps, unsigned stop_on_errors)
|
||||
{
|
||||
struct kmod_list *d;
|
||||
int err = 0;
|
||||
|
||||
kmod_list_foreach(d, deps) {
|
||||
struct kmod_module *dm = kmod_module_get_module(d);
|
||||
struct kmod_list *pre = NULL, *post = NULL;
|
||||
const char *cmd, *opts, *dmname = kmod_module_get_name(dm);
|
||||
int state;
|
||||
int r;
|
||||
|
||||
r = insmod_do_dependencies(dm);
|
||||
if (r < 0) {
|
||||
//WRN("could not insert dependencies of '%s': %s\n", dmname, strerror(-r));
|
||||
goto dep_error;
|
||||
}
|
||||
|
||||
r = kmod_module_get_softdeps(dm, &pre, &post);
|
||||
if (r < 0) {
|
||||
//WRN("could not get softdeps of '%s': %s\n", dmname, strerror(-r));
|
||||
goto dep_done;
|
||||
}
|
||||
|
||||
r = insmod_do_soft_dependencies(dm, pre);
|
||||
if (r < 0) {
|
||||
//WRN("could not insert pre softdeps of '%s': %s\n", dmname, strerror(-r));
|
||||
goto dep_error;
|
||||
}
|
||||
|
||||
state = kmod_module_get_initstate(dm);
|
||||
if (state == KMOD_MODULE_LIVE ||
|
||||
state == KMOD_MODULE_COMING ||
|
||||
state == KMOD_MODULE_BUILTIN)
|
||||
goto dep_done;
|
||||
|
||||
cmd = kmod_module_get_install_commands(dm);
|
||||
if (cmd) {
|
||||
r = command_do(dm, "install", cmd, NULL);
|
||||
if (r < 0) {
|
||||
//WRN("failed to execute install command of '%s':" " %s\n", dmname, strerror(-r));
|
||||
goto dep_error;
|
||||
} else
|
||||
goto dep_done;
|
||||
}
|
||||
|
||||
opts = kmod_module_get_options(dm);
|
||||
|
||||
r = kmod_module_insert_module(dm, 0, opts);
|
||||
if (r < 0) {
|
||||
//WRN("could not insert '%s': %s\n", dmname, strerror(-r));
|
||||
goto dep_error;
|
||||
}
|
||||
|
||||
dep_done:
|
||||
r = insmod_do_soft_dependencies(dm, post);
|
||||
if (r < 0) {
|
||||
//WRN("could not insert post softdeps of '%s': %s\n", dmname, strerror(-r));
|
||||
goto dep_error;
|
||||
}
|
||||
|
||||
kmod_module_unref_list(pre);
|
||||
kmod_module_unref_list(post);
|
||||
kmod_module_unref(dm);
|
||||
continue;
|
||||
|
||||
dep_error:
|
||||
err = r;
|
||||
kmod_module_unref_list(pre);
|
||||
kmod_module_unref_list(post);
|
||||
kmod_module_unref(dm);
|
||||
if (stop_on_errors)
|
||||
break;
|
||||
else
|
||||
continue;
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int insmod_do_soft_dependencies(struct kmod_module *mod, struct kmod_list *deps)
|
||||
{
|
||||
return insmod_do_deps_list(mod, deps, 0);
|
||||
}
|
||||
|
||||
static int insmod_do_dependencies(struct kmod_module *parent)
|
||||
{
|
||||
struct kmod_list *deps = kmod_module_get_dependencies(parent);
|
||||
int err = insmod_do_deps_list(parent, deps, 1);
|
||||
kmod_module_unref_list(deps);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int insmod_do(struct kmod_module *mod, const char *extra_opts)
|
||||
{
|
||||
const char *modname = kmod_module_get_name(mod);
|
||||
const char *conf_opts = kmod_module_get_options(mod);
|
||||
struct kmod_list *pre = NULL, *post = NULL;
|
||||
char *opts = NULL;
|
||||
const char *cmd;
|
||||
int state;
|
||||
int err;
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
err = insmod_do_soft_dependencies(mod, pre);
|
||||
if (err < 0) {
|
||||
//WRN("could not insert pre softdeps of '%s': %s\n", modname, strerror(-err));
|
||||
goto error;
|
||||
}
|
||||
|
||||
cmd = kmod_module_get_install_commands(mod);
|
||||
if (cmd != NULL) {
|
||||
err = command_do(mod, "install", cmd, extra_opts);
|
||||
goto done;
|
||||
}
|
||||
|
||||
state = kmod_module_get_initstate(mod);
|
||||
if (state == KMOD_MODULE_BUILTIN || state == KMOD_MODULE_LIVE)
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* At this point it's not possible to be a install/remove command
|
||||
* anymore. So if we can't get module's path, it's because it was
|
||||
* really intended to be a module and it doesn't exist
|
||||
*/
|
||||
if (kmod_module_get_path(mod) == NULL) {
|
||||
//LOG("Module %s not found.\n", modname);
|
||||
return -ENOENT;
|
||||
}
|
||||
|
||||
err = insmod_do_dependencies(mod);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
if (conf_opts || extra_opts) {
|
||||
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)
|
||||
opts = NULL;
|
||||
|
||||
if (opts == NULL) {
|
||||
err = -ENOMEM;
|
||||
goto error;
|
||||
}
|
||||
}
|
||||
|
||||
err = kmod_module_insert_module(mod, 0, opts);
|
||||
if (err == -EEXIST)
|
||||
err = 0;
|
||||
|
||||
done:
|
||||
err = insmod_do_soft_dependencies(mod, post);
|
||||
if (err < 0) {
|
||||
//WRN("could not insert post softdeps of '%s': %s\n", modname, strerror(-err));
|
||||
goto error;
|
||||
}
|
||||
|
||||
error:
|
||||
kmod_module_unref_list(pre);
|
||||
kmod_module_unref_list(post);
|
||||
free(opts);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int insmod_path(struct kmod_ctx *ctx, const char *path, const char *extra_options)
|
||||
{
|
||||
struct kmod_module *mod;
|
||||
int err;
|
||||
|
||||
err = kmod_module_new_from_path(ctx, path, &mod);
|
||||
if (err < 0) {
|
||||
//LOG("Module %s not found.\n", path);
|
||||
return err;
|
||||
}
|
||||
err = insmod_do(mod, extra_options);
|
||||
kmod_module_unref(mod);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int insmod_alias(struct kmod_ctx *ctx, const char *alias, const char *extra_options)
|
||||
{
|
||||
struct kmod_list *l, *list = NULL;
|
||||
struct kmod_list *filtered = NULL;
|
||||
struct kmod_list *list = NULL;
|
||||
struct kmod_list *listb = NULL;
|
||||
struct kmod_list *l;
|
||||
int err;
|
||||
|
||||
err = kmod_module_new_from_lookup(ctx, alias, &list);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
if (list == NULL) {
|
||||
//LOG("Module %s not found.\n", alias);
|
||||
err = kmod_module_get_filtered_blacklist(ctx, list, &listb);
|
||||
if (err < 0)
|
||||
return err;
|
||||
}
|
||||
|
||||
err = kmod_module_get_filtered_blacklist(ctx, list, &filtered);
|
||||
kmod_module_unref_list(list);
|
||||
if (err < 0) {
|
||||
//LOG("Could not filter alias list!\n");
|
||||
return err;
|
||||
}
|
||||
list = filtered;
|
||||
if (list == NULL)
|
||||
info(udev, "no module matches '%s'\n", alias);
|
||||
|
||||
kmod_list_foreach(l, list) {
|
||||
kmod_list_foreach(l, listb) {
|
||||
struct kmod_module *mod = kmod_module_get_module(l);
|
||||
err = insmod_do(mod, extra_options);
|
||||
|
||||
err = kmod_module_probe_insert_module(mod, 0, NULL, NULL, NULL);
|
||||
if (err >=0 )
|
||||
info(udev, "inserted '%s'\n", kmod_module_get_name(mod));
|
||||
else
|
||||
info(udev, "failed to insert '%s'\n", kmod_module_get_name(mod));
|
||||
|
||||
kmod_module_unref(mod);
|
||||
if (err < 0)
|
||||
break;
|
||||
}
|
||||
|
||||
kmod_module_unref_list(list);
|
||||
kmod_module_unref_list(listb);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int insmod(struct kmod_ctx *ctx, const char *name, const char *extra_options)
|
||||
{
|
||||
struct stat st;
|
||||
if (stat(name, &st) == 0)
|
||||
return insmod_path(ctx, name, extra_options);
|
||||
else
|
||||
return insmod_alias(ctx, name, extra_options);
|
||||
}
|
||||
|
||||
static void udev_kmod_log(void *data, int priority, const char *file, int line,
|
||||
const char *fn, const char *format, va_list args)
|
||||
{
|
||||
@ -345,7 +97,7 @@ static int builtin_kmod(struct udev_device *dev, int argc, char *argv[], bool te
|
||||
|
||||
for (i = 2; argv[i]; i++) {
|
||||
info(udev, "execute '%s' '%s'\n", argv[1], argv[i]);
|
||||
insmod(ctx, argv[i], NULL);
|
||||
load_module(udev, argv[i]);
|
||||
}
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user