diff options
Diffstat (limited to 'src/shared')
-rw-r--r-- | src/shared/meson.build | 3 | ||||
-rw-r--r-- | src/shared/module-util.c | 64 |
2 files changed, 67 insertions, 0 deletions
diff --git a/src/shared/meson.build b/src/shared/meson.build index b215e267d..9f4615091 100644 --- a/src/shared/meson.build +++ b/src/shared/meson.build @@ -64,6 +64,8 @@ # machine-image.h # machine-pool.c # machine-pool.h +# module-util.h +# module-util.c # nsflags.c # nsflags.h # output-mode.c @@ -157,6 +159,7 @@ libshared_name = 'elogind-shared-@0@'.format(meson.project_version()) # libcryptsetup, # libgcrypt, # libiptc, +# libkmod, # libseccomp, # libselinux, # libidn, diff --git a/src/shared/module-util.c b/src/shared/module-util.c new file mode 100644 index 000000000..b203239b3 --- /dev/null +++ b/src/shared/module-util.c @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ + +//#include <errno.h> + +//#include "module-util.h" + +int module_load_and_warn(struct kmod_ctx *ctx, const char *module) { + const int probe_flags = KMOD_PROBE_APPLY_BLACKLIST; + struct kmod_list *itr; + _cleanup_(kmod_module_unref_listp) struct kmod_list *modlist = NULL; + int r = 0; + + log_debug("Loading module: %s", module); + + r = kmod_module_new_from_lookup(ctx, module, &modlist); + if (r < 0) + return log_error_errno(r, "Failed to lookup module alias '%s': %m", module); + + if (!modlist) { + log_error("Failed to find module '%s'", module); + return -ENOENT; + } + + kmod_list_foreach(itr, modlist) { + _cleanup_(kmod_module_unrefp) struct kmod_module *mod = NULL; + int state, err; + + mod = kmod_module_get_module(itr); + state = kmod_module_get_initstate(mod); + + switch (state) { + case KMOD_MODULE_BUILTIN: + log_info("Module '%s' is builtin", kmod_module_get_name(mod)); + break; + + case KMOD_MODULE_LIVE: + log_debug("Module '%s' is already loaded", kmod_module_get_name(mod)); + break; + + default: + err = kmod_module_probe_insert_module(mod, probe_flags, + NULL, NULL, NULL, NULL); + + if (err == 0) + log_info("Inserted module '%s'", kmod_module_get_name(mod)); + else if (err == KMOD_PROBE_APPLY_BLACKLIST) + log_info("Module '%s' is blacklisted", kmod_module_get_name(mod)); + else { + assert(err < 0); + + log_full_errno(err == ENODEV ? LOG_NOTICE : + err == ENOENT ? LOG_WARNING : + LOG_ERR, + err, + "Failed to insert module '%s': %m", + kmod_module_get_name(mod)); + if (!IN_SET(err, ENODEV, ENOENT)) + r = err; + } + } + } + + return r; +} |