#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
#include <string.h>
#include <assert.h>
#include <fcntl.h>
#include <bsd/sys/queue.h>
+#include "osdep.h"
+
#define MAX_PEER_ADDRS 5
/* send at most this many copies; honour at most that many addresses */
#define MAX_NAK_MSG 80
+#define MAX_SIG_KEYS 4
struct hash_if;
struct comm_if;
struct comm_addr;
struct priomsg;
+struct log_if;
+struct buffer_if;
+struct sigpubkey_if;
+struct sigprivkey_if;
typedef char *string_t;
typedef const char *cstring_t;
#endif
};
+#define GRPIDSZ 4
+#define ALGIDSZ 1
+#define KEYIDSZ (GRPIDSZ+ALGIDSZ)
+ /* Changing these is complex: this is the group id plus algo id */
+ /* They are costructed by pubkeys.fl.pl. Also hardcoded in _PR_ */
+struct sigkeyid { uint8_t b[KEYIDSZ]; };
+
+#define SIGKEYID_PR_FMT "%02x%02x%02x%02x%02x"
+#define SIGKEYID_PR_VAL(id) /* SIGKEYID_PR_VAL(const sigkeyid *id) */ \
+ ((id) == (const struct sigkeyid*)0, (id)->b[0]), \
+ (id)->b[1],(id)->b[2],(id)->b[3],(id)->b[4]
+static inline bool_t sigkeyid_equal(const struct sigkeyid *a,
+ const struct sigkeyid *b) {
+ return !memcmp(a->b, b->b, KEYIDSZ);
+}
+
+#define SERIALSZ 4
+typedef uint32_t serialt;
+static inline int serial_cmp(serialt a, serialt b) {
+ if (a==b) return 0;
+ if (!a) return -1;
+ if (!b) return +1;
+ return b-a <= (serialt)0x7fffffffUL ? +1 : -1;
+}
+
#define ASSERT(x) do { if (!(x)) { fatal("assertion failed line %d file " \
__FILE__,__LINE__); } } while(0)
extern list_t *new_closure(closure_t *cl);
extern void add_closure(dict_t *dict, cstring_t name, apply_fn apply);
extern void *find_cl_if(dict_t *dict, cstring_t name, uint32_t type,
- bool_t fail_if_invalid, cstring_t desc,
+ bool_t required, cstring_t desc,
struct cloc loc);
extern item_t *dict_find_item(dict_t *dict, cstring_t key, bool_t required,
cstring_t desc, struct cloc loc);
extern void init_builtin_modules(dict_t *dict);
+extern init_module pubkeys_init;
extern init_module resolver_module;
extern init_module random_module;
extern init_module udp_module;
extern init_module tun_module;
extern init_module sha1_module;
extern init_module log_module;
+extern init_module privcache_module;
/***** END of module support *****/
+/***** SIGNATURE SCHEMES *****/
+
+struct sigscheme_info;
+
+typedef bool_t sigscheme_loadpub(const struct sigscheme_info *algo,
+ struct buffer_if *pubkeydata,
+ struct sigpubkey_if **sigpub_r,
+ closure_t **closure_r,
+ struct log_if *log, struct cloc loc);
+ /* pubkeydata is (supposedly) for this algorithm.
+ * loadpub should log an error if it fails.
+ * pubkeydata may be modified (but not freed).
+ * both *sigpub_r and *closure_r must always be written and must
+ * refer to the same object, so on successful return
+ * (*closure_r)->type==CL_SIGPUBKEY
+ * and (*closure_r)->interface==*sigpub_r */
+
+typedef bool_t sigscheme_loadpriv(const struct sigscheme_info *algo,
+ struct buffer_if *privkeydata,
+ struct sigprivkey_if **sigpriv_r,
+ closure_t **closure_r,
+ struct log_if *log, struct cloc loc);
+ /* Ideally, check whether privkeydata contains data for any algorithm.
+ * That avoids security problems if a key file is misidentified (which
+ * might happen if the file is simply renamed).
+ * If there is an error (including that the key data is not for this
+ * algorithm, return False and log an error at M_ERROR.
+ * On entry privkeydata->base==start. loadpriv may modify
+ * privkeydata, including the contents. */
+
+struct sigscheme_info {
+ const char *name;
+ const uint8_t algid;
+ sigscheme_loadpub *loadpub;
+ sigscheme_loadpriv *loadpriv;
+};
+
+extern const struct sigscheme_info rsa1_sigscheme;
+extern const struct sigscheme_info sigschemes[]; /* sentinel has name==0 */
+
+const struct sigscheme_info *sigscheme_lookup(const char *name);
+
+extern sigscheme_loadpriv rsa1_loadpriv;
+extern sigscheme_loadpub rsa1_loadpub;
+
+/***** END of signature schemes *****/
+
/***** CLOSURE TYPES and interface definitions *****/
#define CL_PURE 0
#define CL_HASH 12
#define CL_BUFFER 13
#define CL_NETLINK 14
+#define CL_PRIVCACHE 15
+/* When editing this list, edit closure_type_names[] too */
+
+extern const char *const closure_type_names[];
+
+const char *closure_type_name(uint32_t ty, char buf[]);
struct buffer_if;
/* SIGPUBKEY interface */
-typedef void sig_sethash_fn(void *st, struct hash_if *hash);
+typedef void sig_dispose_fn(void *st);
+
typedef bool_t sig_unpick_fn(void *sst, struct buffer_if *msg,
struct alg_msg_data *sig);
typedef bool_t sig_checksig_fn(void *st, uint8_t *data, int32_t datalen,
const struct alg_msg_data *sig);
struct sigpubkey_if {
void *st;
- sig_sethash_fn *sethash; /* must be called before check, if non-0 */
sig_unpick_fn *unpick;
sig_checksig_fn *check;
+ const struct hash_if *hash;
+ sig_dispose_fn *dispose;
};
/* SIGPRIVKEY interface */
struct buffer_if *msg);
struct sigprivkey_if {
void *st;
- sig_sethash_fn *sethash; /* must be called before sign, if non-0 */
sig_makesig_fn *sign;
+ const struct hash_if *hash;
+ sig_dispose_fn *dispose;
+};
+
+/* PRIVCACHE interface */
+
+typedef struct sigprivkey_if *privcache_lookup_fn(void *st,
+ const struct sigkeyid *id,
+ struct log_if*);
+ /* Return is valid only until you return from the current event! */
+
+struct privcache_if {
+ void *st;
+ privcache_lookup_fn *lookup;
};
/* COMM interface */
extern void vslilog_part(struct log_if *lf, int class, const char *message,
va_list) FORMAT(printf,3,0);
+void cfgfile_log__vmsg(void *sst, int class, const char *message, va_list);
+struct cfgfile_log {
+ struct log_if log;
+ /* private fields */
+ struct cloc loc;
+ const char *facility;
+};
+static inline void cfgfile_log_init(struct cfgfile_log *cfl,
+ struct cloc loc, const char *facility)
+{
+ cfl->log.st=cfl;
+ cfl->log.vlogfn=cfgfile_log__vmsg;
+ cfl->loc=loc;
+ cfl->facility=facility;
+}
+
+void log_early_init(void);
+void log_early_setlevel(void);
+
/* SITE interface */
/* Pretty much a placeholder; allows starting and stopping of processing,
key expiry, etc. */
-typedef void site_control_fn(void *st, bool_t run);
+typedef void site_startup_fn(void *st);
typedef uint32_t site_status_fn(void *st);
struct site_if {
void *st;
- site_control_fn *control;
+ site_startup_fn *startup;
site_status_fn *status;
};
hash_final_fn *final;
};
+extern struct hash_if *const sha1_hash_if; /* for where this is hardcoded */
+
/* BUFFER interface */
struct buffer_if {
extern void cfgfile_postreadcheck(struct cloc loc, FILE *f);
extern NORETURN(vcfgfatal_maybefile(FILE *maybe_f, struct cloc loc,
cstring_t facility, const char *message,
- va_list))
+ va_list, const char *suffix))
FORMAT(printf,4,0);
extern NORETURN(cfgfatal_maybefile(FILE *maybe_f, struct cloc loc,
cstring_t facility,
const char *message, ...))
FORMAT(printf,4,5);
+extern NORETURN(cfgfatal_cl_type(struct cloc loc, const char *facility,
+ closure_t *cl, uint32_t exp_type,
+ const char *name));
+
extern void Message(uint32_t class, const char *message, ...)
FORMAT(printf,2,3);
extern void log_from_fd(int fd, cstring_t prefix, struct log_if *log);
~ianmdlvl / secnet.git / blobdiff