summaryrefslogtreecommitdiff
path: root/libkmod/libkmod-internal.h
blob: 01801243cc58345bba4a718fd9d9a3b3221dc862 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
#pragma once

#include <stdbool.h>
#include <stdio.h>
#include <syslog.h>
#include <limits.h>

#include "missing.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__, __func__, ## 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")))

#define KCMD_LINE_SIZE 4096

#ifndef HAVE_SECURE_GETENV
#  ifdef HAVE___SECURE_GETENV
#    define secure_getenv __secure_getenv
#  else
#    warning neither secure_getenv nor __secure_getenv is available
#    define secure_getenv getenv
#  endif
#endif

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))

#undef kmod_list_foreach_reverse
#define kmod_list_foreach_reverse(list_entry, first_entry) \
	for (list_entry = (((first_entry) == NULL) ? NULL : container_of(first_entry->node.prev, struct kmod_list, node)); \
		list_entry != NULL; \
		list_entry = ((list_entry == first_entry) ? NULL :	\
		container_of(list_entry->node.prev, 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)));
int kmod_lookup_alias_from_builtin_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
int kmod_lookup_alias_from_commands(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3)));
void kmod_set_modules_visited(struct kmod_ctx *ctx, bool visited) __attribute__((nonnull((1))));

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 *key) __attribute__((nonnull(1,2)));
void kmod_pool_add_module(struct kmod_ctx *ctx, struct kmod_module *mod, const char *key) __attribute__((nonnull(1, 2, 3)));
void kmod_pool_del_module(struct kmod_ctx *ctx, struct kmod_module *mod, const char *key) __attribute__((nonnull(1, 2, 3)));

const struct kmod_config *kmod_get_config(const struct kmod_ctx *ctx) __attribute__((nonnull(1)));

/* libkmod-config.c */
struct kmod_config_path {
	unsigned long long stamp;
	char path[];
};

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;
	struct kmod_list *softdeps;

	struct kmod_list *paths;
};

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_blacklist_get_modname(const struct kmod_list *l) __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)));

const char *kmod_softdep_get_name(const struct kmod_list *l) __attribute__((nonnull(1)));
const char * const *kmod_softdep_get_pre(const struct kmod_list *l, unsigned int *count) __attribute__((nonnull(1, 2)));
const char * const *kmod_softdep_get_post(const struct kmod_list *l, unsigned int *count);


/* libkmod-module.c */
int kmod_module_new_from_alias(struct kmod_ctx *ctx, const char *alias, const char *name, struct kmod_module **mod);
int kmod_module_parse_depline(struct kmod_module *mod, char *line) __attribute__((nonnull(1, 2)));
void kmod_module_set_install_commands(struct kmod_module *mod, const char *cmd) __attribute__((nonnull(1)));
void kmod_module_set_remove_commands(struct kmod_module *mod, const char *cmd) __attribute__((nonnull(1)));
void kmod_module_set_visited(struct kmod_module *mod, bool visited) __attribute__((nonnull(1)));
void kmod_module_set_builtin(struct kmod_module *mod, bool builtin) __attribute__((nonnull((1))));

/* libkmod-hash.c */

#include "libkmod-hash.h"

/* libkmod-file.c */
struct kmod_file *kmod_file_open(const struct kmod_ctx *ctx, const char *filename) _must_check_ __attribute__((nonnull(1,2)));
struct kmod_elf *kmod_file_get_elf(struct kmod_file *file) __attribute__((nonnull(1)));
void *kmod_file_get_contents(const struct kmod_file *file) _must_check_ __attribute__((nonnull(1)));
off_t kmod_file_get_size(const struct kmod_file *file) _must_check_ __attribute__((nonnull(1)));
bool kmod_file_get_direct(const struct kmod_file *file) _must_check_ __attribute__((nonnull(1)));
int kmod_file_get_fd(const struct kmod_file *file) _must_check_ __attribute__((nonnull(1)));
void kmod_file_unref(struct kmod_file *file) __attribute__((nonnull(1)));

/* libkmod-elf.c */
struct kmod_elf;
struct kmod_modversion {
	uint64_t crc;
	enum kmod_symbol_bind bind;
	char *symbol;
};

struct kmod_elf *kmod_elf_new(const void *memory, off_t size) _must_check_ __attribute__((nonnull(1)));
void kmod_elf_unref(struct kmod_elf *elf) __attribute__((nonnull(1)));
const void *kmod_elf_get_memory(const struct kmod_elf *elf) _must_check_ __attribute__((nonnull(1)));
int kmod_elf_get_strings(const struct kmod_elf *elf, const char *section, char ***array) _must_check_ __attribute__((nonnull(1,2,3)));
int kmod_elf_get_modversions(const struct kmod_elf *elf, struct kmod_modversion **array) _must_check_ __attribute__((nonnull(1,2)));
int kmod_elf_get_symbols(const struct kmod_elf *elf, struct kmod_modversion **array) _must_check_ __attribute__((nonnull(1,2)));
int kmod_elf_get_dependency_symbols(const struct kmod_elf *elf, struct kmod_modversion **array) _must_check_ __attribute__((nonnull(1,2)));
int kmod_elf_strip_section(struct kmod_elf *elf, const char *section) _must_check_ __attribute__((nonnull(1,2)));
int kmod_elf_strip_vermagic(struct kmod_elf *elf) _must_check_ __attribute__((nonnull(1)));

/*
 * Debug mock lib need to find section ".gnu.linkonce.this_module" in order to
 * get modname
 */
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)));

/* libkmod-signature.c */
struct kmod_signature_info {
	const char *signer;
	size_t signer_len;
	const char *key_id;
	size_t key_id_len;
	const char *algo, *hash_algo, *id_type;
};
bool kmod_module_signature_info(const struct kmod_file *file, struct kmod_signature_info *sig_info) _must_check_ __attribute__((nonnull(1, 2)));
/* util functions */
#include "libkmod-util.h"