mirror of
https://github.com/AuxXxilium/kmod.git
synced 2024-11-23 23:10:53 +07:00
43bdf97ce1
When you use pass the -v argument to modprobe we bump the log level from the default modprobe log level of LOG_WARNING (4) to LOG_NOTICE (5), however the library only has avaiable to print: #define DBG(ctx, arg...) kmod_log_cond(ctx, LOG_DEBUG, ## arg) #define INFO(ctx, arg...) kmod_log_cond(ctx, LOG_INFO, ## arg) #define ERR(ctx, arg...) kmod_log_cond(ctx, LOG_ERR, ## arg) LOG_INFO (6) however is too high of a level for it to be effective at printing anything when modprobe -v is passed. And so the only way in which modprobe -v can trigger the library to print a verbose message is to use ERR() but that always prints something and we don't want that in some situations. We need to add a new log level macro which uses LOG_NOTICE (5) for a "normal but significant condition" which users and developers can use to look underneath the hood to confirm if a situation is happening. Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
208 lines
10 KiB
C
208 lines
10 KiB
C
#pragma once
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#include <stdbool.h>
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#include <stdio.h>
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#include <syslog.h>
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#include <limits.h>
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#include <shared/macro.h>
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#include <shared/missing.h>
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#include "libkmod.h"
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static _always_inline_ _printf_format_(2, 3) void
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kmod_log_null(const struct kmod_ctx *ctx, const char *format, ...) {}
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#define kmod_log_cond(ctx, prio, arg...) \
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do { \
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if (kmod_get_log_priority(ctx) >= prio) \
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kmod_log(ctx, prio, __FILE__, __LINE__, __func__, ## arg);\
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} while (0)
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#ifdef ENABLE_LOGGING
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# ifdef ENABLE_DEBUG
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# define DBG(ctx, arg...) kmod_log_cond(ctx, LOG_DEBUG, ## arg)
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# else
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# define DBG(ctx, arg...) kmod_log_null(ctx, ## arg)
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# endif
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# define NOTICE(ctx, arg...) kmod_log_cond(ctx, LOG_NOTICE, ## arg)
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# define INFO(ctx, arg...) kmod_log_cond(ctx, LOG_INFO, ## arg)
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# define ERR(ctx, arg...) kmod_log_cond(ctx, LOG_ERR, ## arg)
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#else
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# define DBG(ctx, arg...) kmod_log_null(ctx, ## arg)
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# define NOTICE(ctx, arg...) kmod_log_null(ctx, ## arg)
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# define INFO(ctx, arg...) kmod_log_null(ctx, ## arg)
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# define ERR(ctx, arg...) kmod_log_null(ctx, ## arg)
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#endif
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#define KMOD_EXPORT __attribute__ ((visibility("default")))
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#define KCMD_LINE_SIZE 4096
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#ifndef HAVE_SECURE_GETENV
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# ifdef HAVE___SECURE_GETENV
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# define secure_getenv __secure_getenv
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# else
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# warning neither secure_getenv nor __secure_getenv is available
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# define secure_getenv getenv
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# endif
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#endif
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void kmod_log(const struct kmod_ctx *ctx,
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int priority, const char *file, int line, const char *fn,
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const char *format, ...) __attribute__((format(printf, 6, 7))) __attribute__((nonnull(1, 3, 5)));
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struct list_node {
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struct list_node *next, *prev;
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};
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struct kmod_list {
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struct list_node node;
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void *data;
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};
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struct kmod_list *kmod_list_append(struct kmod_list *list, const void *data) _must_check_ __attribute__((nonnull(2)));
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struct kmod_list *kmod_list_prepend(struct kmod_list *list, const void *data) _must_check_ __attribute__((nonnull(2)));
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struct kmod_list *kmod_list_remove(struct kmod_list *list) _must_check_;
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struct kmod_list *kmod_list_remove_data(struct kmod_list *list,
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const void *data) _must_check_ __attribute__((nonnull(2)));
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struct kmod_list *kmod_list_remove_n_latest(struct kmod_list *list,
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unsigned int n) _must_check_;
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struct kmod_list *kmod_list_insert_after(struct kmod_list *list, const void *data) __attribute__((nonnull(2)));
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struct kmod_list *kmod_list_insert_before(struct kmod_list *list, const void *data) __attribute__((nonnull(2)));
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struct kmod_list *kmod_list_append_list(struct kmod_list *list1, struct kmod_list *list2) _must_check_;
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#undef kmod_list_foreach
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#define kmod_list_foreach(list_entry, first_entry) \
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for (list_entry = ((first_entry) == NULL) ? NULL : (first_entry); \
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list_entry != NULL; \
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list_entry = (list_entry->node.next == &((first_entry)->node)) ? NULL : \
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container_of(list_entry->node.next, struct kmod_list, node))
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#undef kmod_list_foreach_reverse
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#define kmod_list_foreach_reverse(list_entry, first_entry) \
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for (list_entry = (((first_entry) == NULL) ? NULL : container_of(first_entry->node.prev, struct kmod_list, node)); \
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list_entry != NULL; \
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list_entry = ((list_entry == first_entry) ? NULL : \
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container_of(list_entry->node.prev, struct kmod_list, node)))
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/* libkmod.c */
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int kmod_lookup_alias_from_config(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
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int kmod_lookup_alias_from_symbols_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
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int kmod_lookup_alias_from_aliases_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
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int kmod_lookup_alias_from_moddep_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
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int kmod_lookup_alias_from_kernel_builtin_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
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int kmod_lookup_alias_from_builtin_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
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bool kmod_lookup_alias_is_builtin(struct kmod_ctx *ctx, const char *name) __attribute__((nonnull(1, 2)));
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int kmod_lookup_alias_from_commands(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
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void kmod_set_modules_visited(struct kmod_ctx *ctx, bool visited) __attribute__((nonnull((1))));
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void kmod_set_modules_required(struct kmod_ctx *ctx, bool required) __attribute__((nonnull((1))));
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char *kmod_search_moddep(struct kmod_ctx *ctx, const char *name) __attribute__((nonnull(1,2)));
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struct kmod_module *kmod_pool_get_module(struct kmod_ctx *ctx, const char *key) __attribute__((nonnull(1,2)));
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void kmod_pool_add_module(struct kmod_ctx *ctx, struct kmod_module *mod, const char *key) __attribute__((nonnull(1, 2, 3)));
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void kmod_pool_del_module(struct kmod_ctx *ctx, struct kmod_module *mod, const char *key) __attribute__((nonnull(1, 2, 3)));
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const struct kmod_config *kmod_get_config(const struct kmod_ctx *ctx) __attribute__((nonnull(1)));
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/* libkmod-config.c */
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struct kmod_config_path {
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unsigned long long stamp;
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char path[];
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};
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struct kmod_config {
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struct kmod_ctx *ctx;
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struct kmod_list *aliases;
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struct kmod_list *blacklists;
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struct kmod_list *options;
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struct kmod_list *remove_commands;
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struct kmod_list *install_commands;
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struct kmod_list *softdeps;
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struct kmod_list *paths;
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};
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int kmod_config_new(struct kmod_ctx *ctx, struct kmod_config **config, const char * const *config_paths) __attribute__((nonnull(1, 2,3)));
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void kmod_config_free(struct kmod_config *config) __attribute__((nonnull(1)));
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const char *kmod_blacklist_get_modname(const struct kmod_list *l) __attribute__((nonnull(1)));
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const char *kmod_alias_get_name(const struct kmod_list *l) __attribute__((nonnull(1)));
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const char *kmod_alias_get_modname(const struct kmod_list *l) __attribute__((nonnull(1)));
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const char *kmod_option_get_options(const struct kmod_list *l) __attribute__((nonnull(1)));
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const char *kmod_option_get_modname(const struct kmod_list *l) __attribute__((nonnull(1)));
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const char *kmod_command_get_command(const struct kmod_list *l) __attribute__((nonnull(1)));
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const char *kmod_command_get_modname(const struct kmod_list *l) __attribute__((nonnull(1)));
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const char *kmod_softdep_get_name(const struct kmod_list *l) __attribute__((nonnull(1)));
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const char * const *kmod_softdep_get_pre(const struct kmod_list *l, unsigned int *count) __attribute__((nonnull(1, 2)));
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const char * const *kmod_softdep_get_post(const struct kmod_list *l, unsigned int *count);
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/* libkmod-module.c */
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int kmod_module_new_from_alias(struct kmod_ctx *ctx, const char *alias, const char *name, struct kmod_module **mod);
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int kmod_module_parse_depline(struct kmod_module *mod, char *line) __attribute__((nonnull(1, 2)));
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void kmod_module_set_install_commands(struct kmod_module *mod, const char *cmd) __attribute__((nonnull(1)));
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void kmod_module_set_remove_commands(struct kmod_module *mod, const char *cmd) __attribute__((nonnull(1)));
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void kmod_module_set_visited(struct kmod_module *mod, bool visited) __attribute__((nonnull(1)));
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void kmod_module_set_builtin(struct kmod_module *mod, bool builtin) __attribute__((nonnull((1))));
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void kmod_module_set_required(struct kmod_module *mod, bool required) __attribute__((nonnull(1)));
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bool kmod_module_is_builtin(struct kmod_module *mod) __attribute__((nonnull(1)));
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int kmod_module_get_builtin(struct kmod_ctx *ctx, struct kmod_list **list) __attribute__((nonnull(1, 2)));
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/* libkmod-file.c */
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struct kmod_file *kmod_file_open(const struct kmod_ctx *ctx, const char *filename) _must_check_ __attribute__((nonnull(1,2)));
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struct kmod_elf *kmod_file_get_elf(struct kmod_file *file) __attribute__((nonnull(1)));
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void *kmod_file_get_contents(const struct kmod_file *file) _must_check_ __attribute__((nonnull(1)));
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off_t kmod_file_get_size(const struct kmod_file *file) _must_check_ __attribute__((nonnull(1)));
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bool kmod_file_get_direct(const struct kmod_file *file) _must_check_ __attribute__((nonnull(1)));
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int kmod_file_get_fd(const struct kmod_file *file) _must_check_ __attribute__((nonnull(1)));
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void kmod_file_unref(struct kmod_file *file) __attribute__((nonnull(1)));
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/* libkmod-elf.c */
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struct kmod_elf;
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struct kmod_modversion {
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uint64_t crc;
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enum kmod_symbol_bind bind;
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char *symbol;
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};
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struct kmod_elf *kmod_elf_new(const void *memory, off_t size) _must_check_ __attribute__((nonnull(1)));
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void kmod_elf_unref(struct kmod_elf *elf) __attribute__((nonnull(1)));
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const void *kmod_elf_get_memory(const struct kmod_elf *elf) _must_check_ __attribute__((nonnull(1)));
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int kmod_elf_get_strings(const struct kmod_elf *elf, const char *section, char ***array) _must_check_ __attribute__((nonnull(1,2,3)));
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int kmod_elf_get_modversions(const struct kmod_elf *elf, struct kmod_modversion **array) _must_check_ __attribute__((nonnull(1,2)));
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int kmod_elf_get_symbols(const struct kmod_elf *elf, struct kmod_modversion **array) _must_check_ __attribute__((nonnull(1,2)));
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int kmod_elf_get_dependency_symbols(const struct kmod_elf *elf, struct kmod_modversion **array) _must_check_ __attribute__((nonnull(1,2)));
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int kmod_elf_strip_section(struct kmod_elf *elf, const char *section) _must_check_ __attribute__((nonnull(1,2)));
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int kmod_elf_strip_vermagic(struct kmod_elf *elf) _must_check_ __attribute__((nonnull(1)));
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/*
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* Debug mock lib need to find section ".gnu.linkonce.this_module" in order to
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* get modname
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*/
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int kmod_elf_get_section(const struct kmod_elf *elf, const char *section, const void **buf, uint64_t *buf_size) _must_check_ __attribute__((nonnull(1,2,3,4)));
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/* libkmod-signature.c */
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struct kmod_signature_info {
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const char *signer;
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size_t signer_len;
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const char *key_id;
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size_t key_id_len;
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const char *algo, *hash_algo, *id_type;
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const char *sig;
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size_t sig_len;
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void (*free)(void *);
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void *private;
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};
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bool kmod_module_signature_info(const struct kmod_file *file, struct kmod_signature_info *sig_info) _must_check_ __attribute__((nonnull(1, 2)));
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void kmod_module_signature_info_free(struct kmod_signature_info *sig_info) __attribute__((nonnull));
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/* libkmod-builtin.c */
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struct kmod_builtin_iter;
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struct kmod_builtin_iter *kmod_builtin_iter_new(struct kmod_ctx *ctx) __attribute__((nonnull(1)));
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void kmod_builtin_iter_free(struct kmod_builtin_iter *iter) __attribute__((nonnull(1)));
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bool kmod_builtin_iter_next(struct kmod_builtin_iter *iter) __attribute__((nonnull(1)));
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bool kmod_builtin_iter_get_modname(struct kmod_builtin_iter *iter, char modname[static PATH_MAX]) __attribute__((nonnull(1, 2)));
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ssize_t kmod_builtin_get_modinfo(struct kmod_ctx *ctx, const char *modname, char ***modinfo) __attribute__((nonnull(1, 2, 3)));
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