kmod/libkmod/libkmod-private.h
Lucas De Marchi 6ad5f26362 Add private function kmod_module_new_from_alias()
This function will create a new kmod_module() by calling
kmod_module_new_from_name(), but instead of given the module name, it
gives the alias. This way, the modules' hash will contain the alias
instead of the name. If module was created successfully, then it swap
the alias with the actual name.

The downside is that the structure is not shared anymore if we create a
kmod_module by alias and after by name. However, in modprobe's
configuration it's possible to have different options for different
aliases. In future we might want to create a way to share the common
part of the structure (then having only one instance as we had before).
2011-12-13 14:12:50 -02:00

137 lines
6.5 KiB
C

#ifndef _LIBKMOD_PRIVATE_H_
#define _LIBKMOD_PRIVATE_H_
#include <stdbool.h>
#include <stdio.h>
#include <syslog.h>
#include <limits.h>
#include "macro.h"
#include "libkmod.h"
static __always_inline __printf_format(2, 3) void
kmod_log_null(struct kmod_ctx *ctx, const char *format, ...) {}
#define kmod_log_cond(ctx, prio, arg...) \
do { \
if (kmod_get_log_priority(ctx) >= prio) \
kmod_log(ctx, prio, __FILE__, __LINE__, __FUNCTION__, ## arg);\
} while (0)
#ifdef ENABLE_LOGGING
# ifdef ENABLE_DEBUG
# define DBG(ctx, arg...) kmod_log_cond(ctx, LOG_DEBUG, ## arg)
# else
# define DBG(ctx, arg...) kmod_log_null(ctx, ## arg)
# endif
# define INFO(ctx, arg...) kmod_log_cond(ctx, LOG_INFO, ## arg)
# define ERR(ctx, arg...) kmod_log_cond(ctx, LOG_ERR, ## arg)
#else
# define DBG(ctx, arg...) kmod_log_null(ctx, ## arg)
# define INFO(ctx, arg...) kmod_log_null(ctx, ## arg)
# define ERR(ctx, arg...) kmod_log_null(ctx, ## arg)
#endif
#define KMOD_EXPORT __attribute__ ((visibility("default")))
void kmod_log(const struct kmod_ctx *ctx,
int priority, const char *file, int line, const char *fn,
const char *format, ...) __attribute__((format(printf, 6, 7))) __attribute__((nonnull(1, 3, 5)));
struct list_node {
struct list_node *next, *prev;
};
struct kmod_list {
struct list_node node;
void *data;
};
struct kmod_list *kmod_list_append(struct kmod_list *list, const void *data) __must_check __attribute__((nonnull(2)));
struct kmod_list *kmod_list_prepend(struct kmod_list *list, const void *data) __must_check __attribute__((nonnull(2)));
struct kmod_list *kmod_list_remove(struct kmod_list *list) __must_check;
struct kmod_list *kmod_list_remove_data(struct kmod_list *list,
const void *data) __must_check __attribute__((nonnull(2)));
struct kmod_list *kmod_list_remove_n_latest(struct kmod_list *list,
unsigned int n) __must_check;
struct kmod_list *kmod_list_insert_after(struct kmod_list *list, const void *data) __attribute__((nonnull(2)));
struct kmod_list *kmod_list_insert_before(struct kmod_list *list, const void *data) __attribute__((nonnull(2)));
struct kmod_list *kmod_list_append_list(struct kmod_list *list1, struct kmod_list *list2) __must_check;
#undef kmod_list_foreach
#define kmod_list_foreach(list_entry, first_entry) \
for (list_entry = ((first_entry) == NULL) ? NULL : (first_entry); \
list_entry != NULL; \
list_entry = (list_entry->node.next == &((first_entry)->node)) ? NULL : \
container_of(list_entry->node.next, struct kmod_list, node))
/* libkmod.c */
const char *kmod_get_dirname(const struct kmod_ctx *ctx) __attribute__((nonnull(1)));
int kmod_lookup_alias_from_config(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
int kmod_lookup_alias_from_symbols_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
int kmod_lookup_alias_from_aliases_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
int kmod_lookup_alias_from_moddep_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
char *kmod_search_moddep(struct kmod_ctx *ctx, const char *name) __attribute__((nonnull(1,2)));
struct kmod_module *kmod_pool_get_module(struct kmod_ctx *ctx, const char *name) __attribute__((nonnull(1,2)));
void kmod_pool_add_module(struct kmod_ctx *ctx, struct kmod_module *mod) __attribute__((nonnull(1,2)));
void kmod_pool_del_module(struct kmod_ctx *ctx, struct kmod_module *mod) __attribute__((nonnull(1,2)));
const struct kmod_list *kmod_get_options(const struct kmod_ctx *ctx) __must_check __attribute__((nonnull(1)));
const struct kmod_list *kmod_get_install_commands(const struct kmod_ctx *ctx) __must_check __attribute__((nonnull(1)));
const struct kmod_list *kmod_get_remove_commands(const struct kmod_ctx *ctx) __must_check __attribute__((nonnull(1)));
/* libkmod-config.c */
struct kmod_config {
struct kmod_ctx *ctx;
struct kmod_list *aliases;
struct kmod_list *blacklists;
struct kmod_list *options;
struct kmod_list *remove_commands;
struct kmod_list *install_commands;
};
int kmod_config_new(struct kmod_ctx *ctx, struct kmod_config **config, const char * const *config_paths) __attribute__((nonnull(1, 2,3)));
void kmod_config_free(struct kmod_config *config) __attribute__((nonnull(1)));
const char *kmod_alias_get_name(const struct kmod_list *l) __attribute__((nonnull(1)));
const char *kmod_alias_get_modname(const struct kmod_list *l) __attribute__((nonnull(1)));
const char *kmod_option_get_options(const struct kmod_list *l) __attribute__((nonnull(1)));
const char *kmod_option_get_modname(const struct kmod_list *l) __attribute__((nonnull(1)));
const char *kmod_command_get_command(const struct kmod_list *l) __attribute__((nonnull(1)));
const char *kmod_command_get_modname(const struct kmod_list *l) __attribute__((nonnull(1)));
/* libkmod-module.c */
int kmod_module_new_from_alias(struct kmod_ctx *ctx, const char *alias, const char *name, struct kmod_module **mod);
char *modname_normalize(const char *modname, char buf[NAME_MAX], size_t *len) __attribute__((nonnull(1, 2)));
int kmod_module_parse_depline(struct kmod_module *mod, char *line) __attribute__((nonnull(1, 2)));
/* libkmod-hash.c */
struct kmod_hash;
struct kmod_hash *kmod_hash_new(unsigned int n_buckets, void (*free_value)(void *value));
void kmod_hash_free(struct kmod_hash *hash);
int kmod_hash_add(struct kmod_hash *hash, const char *key, const void *value);
int kmod_hash_del(struct kmod_hash *hash, const char *key);
void *kmod_hash_find(const struct kmod_hash *hash, const char *key);
/* util functions */
char *getline_wrapped(FILE *fp, unsigned int *linenum) __attribute__((nonnull(1)));
char *underscores(struct kmod_ctx *ctx, char *s) __attribute__((nonnull(1, 2)));
#define streq(a, b) (strcmp((a), (b)) == 0)
bool startswith(const char *s, const char *prefix) __attribute__((nonnull(1, 2)));
void *memdup(const void *p, size_t n) __attribute__((nonnull(1)));
ssize_t read_str_safe(int fd, char *buf, size_t buflen) __must_check __attribute__((nonnull(2)));
int read_str_long(int fd, long *value, int base) __must_check __attribute__((nonnull(2)));
int read_str_ulong(int fd, unsigned long *value, int base) __must_check __attribute__((nonnull(2)));
char *strchr_replace(char *s, int c, char r);
bool path_is_absolute(const char *p) __must_check __attribute__((nonnull(1)));
char *path_make_absolute_cwd(const char *p) __must_check __attribute__((nonnull(1)));
int alias_normalize(const char *alias, char buf[NAME_MAX], size_t *len) __must_check __attribute__((nonnull(1,2)));
#endif