diff options
Diffstat (limited to 'libkmod/libkmod-module.c')
| -rw-r--r-- | libkmod/libkmod-module.c | 64 |
1 files changed, 58 insertions, 6 deletions
diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c index 585da41..5c26e03 100644 --- a/libkmod/libkmod-module.c +++ b/libkmod/libkmod-module.c @@ -903,8 +903,6 @@ static int do_init_module(struct kmod_module *mod, unsigned int flags, off_t size; int err; - kmod_file_load_contents(mod->file); - if (flags & (KMOD_INSERT_FORCE_VERMAGIC | KMOD_INSERT_FORCE_MODVERSION)) { elf = kmod_file_get_elf(mod->file); if (elf == NULL) { @@ -926,6 +924,10 @@ static int do_init_module(struct kmod_module *mod, unsigned int flags, mem = kmod_elf_get_memory(elf); } else { + err = kmod_file_load_contents(mod->file); + if (err) + return err; + mem = kmod_file_get_contents(mod->file); } size = kmod_file_get_size(mod->file); @@ -1589,7 +1591,7 @@ void kmod_module_set_install_commands(struct kmod_module *mod, const char *cmd) mod->install_commands = cmd; } -static struct kmod_list *lookup_softdep(struct kmod_ctx *ctx, const char * const * array, unsigned int count) +static struct kmod_list *lookup_dep(struct kmod_ctx *ctx, const char * const * array, unsigned int count) { struct kmod_list *ret = NULL; unsigned i; @@ -1601,7 +1603,7 @@ static struct kmod_list *lookup_softdep(struct kmod_ctx *ctx, const char * const err = kmod_module_new_from_lookup(ctx, depname, &lst); if (err < 0) { - ERR(ctx, "failed to lookup soft dependency '%s', continuing anyway.\n", depname); + ERR(ctx, "failed to lookup dependency '%s', continuing anyway.\n", depname); continue; } else if (lst != NULL) ret = kmod_list_append_list(ret, lst); @@ -1650,9 +1652,59 @@ KMOD_EXPORT int kmod_module_get_softdeps(const struct kmod_module *mod, continue; array = kmod_softdep_get_pre(l, &count); - *pre = lookup_softdep(mod->ctx, array, count); + *pre = lookup_dep(mod->ctx, array, count); array = kmod_softdep_get_post(l, &count); - *post = lookup_softdep(mod->ctx, array, count); + *post = lookup_dep(mod->ctx, array, count); + + /* + * find only the first command, as modprobe from + * module-init-tools does + */ + break; + } + + return 0; +} + +/* + * kmod_module_get_weakdeps: + * @mod: kmod module + * @weak: where to save the list of weak dependencies. + * + * Get weak dependencies for this kmod module. Weak dependencies come + * from configuration file and are not cached in @mod because it may include + * dependency cycles that would make we leak kmod_module. Any call + * to this function will search for this module in configuration, allocate a + * list and return the result. + * + * @weak is newly created list of kmod_module and + * should be unreferenced with kmod_module_unref_list(). + * + * Returns: 0 on success or < 0 otherwise. + */ +KMOD_EXPORT int kmod_module_get_weakdeps(const struct kmod_module *mod, + struct kmod_list **weak) +{ + const struct kmod_list *l; + const struct kmod_config *config; + + if (mod == NULL || weak == NULL) + return -ENOENT; + + assert(*weak == NULL); + + config = kmod_get_config(mod->ctx); + + kmod_list_foreach(l, config->weakdeps) { + const char *modname = kmod_weakdep_get_name(l); + const char * const *array; + unsigned count; + + if (fnmatch(modname, mod->name, 0) != 0) + continue; + + array = kmod_weakdep_get_weak(l, &count); + *weak = lookup_dep(mod->ctx, array, count); /* * find only the first command, as modprobe from |