21 #include <sys/types.h>
25 # include <openssl/bn.h>
26 # ifdef OPENSSL_HAS_ECC
27 # include <openssl/ec.h>
31 #define SSHBUF_SIZE_MAX 0xF000000
32 #define SSHBUF_REFS_MAX 0x100000
33 #define SSHBUF_MAX_BIGNUM (16384 / 8)
34 #define SSHBUF_MAX_ECPOINT ((528 * 2 / 8) + 1)
42 struct sshbuf *sshbuf_new(
void);
48 struct sshbuf *sshbuf_from(
const void *blob,
size_t len);
56 struct sshbuf *sshbuf_fromb(
struct sshbuf *buf);
65 int sshbuf_froms(
struct sshbuf *buf,
struct sshbuf **bufp);
70 void sshbuf_free(
struct sshbuf *buf);
75 void sshbuf_reset(
struct sshbuf *buf);
80 size_t sshbuf_max_size(
const struct sshbuf *buf);
86 int sshbuf_set_max_size(
struct sshbuf *buf,
size_t max_size);
91 size_t sshbuf_len(
const struct sshbuf *buf);
96 size_t sshbuf_avail(
const struct sshbuf *buf);
101 const u_char *sshbuf_ptr(
const struct sshbuf *buf);
107 u_char *sshbuf_mutable_ptr(
const struct sshbuf *buf);
115 int sshbuf_check_reserve(
const struct sshbuf *buf,
size_t len);
123 int sshbuf_allocate(
struct sshbuf *buf,
size_t len);
130 int sshbuf_reserve(
struct sshbuf *buf,
size_t len, u_char **dpp);
136 int sshbuf_consume(
struct sshbuf *buf,
size_t len);
142 int sshbuf_consume_end(
struct sshbuf *buf,
size_t len);
145 int sshbuf_get(
struct sshbuf *buf,
void *v,
size_t len);
146 int sshbuf_put(
struct sshbuf *buf,
const void *v,
size_t len);
147 int sshbuf_putb(
struct sshbuf *buf,
const struct sshbuf *v);
150 int sshbuf_putf(
struct sshbuf *buf,
const char *fmt, ...)
151 __attribute__((format(printf, 2, 3)));
152 int sshbuf_putfv(struct sshbuf *buf, const
char *fmt, va_list ap);
155 int sshbuf_get_u64(struct sshbuf *buf, u_int64_t *valp);
156 int sshbuf_get_u32(struct sshbuf *buf, u_int32_t *valp);
157 int sshbuf_get_u16(struct sshbuf *buf, u_int16_t *valp);
158 int sshbuf_get_u8(struct sshbuf *buf, u_char *valp);
159 int sshbuf_put_u64(struct sshbuf *buf, u_int64_t val);
160 int sshbuf_put_u32(struct sshbuf *buf, u_int32_t val);
161 int sshbuf_put_u16(struct sshbuf *buf, u_int16_t val);
162 int sshbuf_put_u8(struct sshbuf *buf, u_char val);
165 int sshbuf_peek_u64(const struct sshbuf *buf,
size_t offset,
167 int sshbuf_peek_u32(const struct sshbuf *buf,
size_t offset,
169 int sshbuf_peek_u16(const struct sshbuf *buf,
size_t offset,
171 int sshbuf_peek_u8(const struct sshbuf *buf,
size_t offset,
178 int sshbuf_poke_u64(struct sshbuf *buf,
size_t offset, u_int64_t val);
179 int sshbuf_poke_u32(struct sshbuf *buf,
size_t offset, u_int32_t val);
180 int sshbuf_poke_u16(struct sshbuf *buf,
size_t offset, u_int16_t val);
181 int sshbuf_poke_u8(struct sshbuf *buf,
size_t offset, u_char val);
182 int sshbuf_poke(struct sshbuf *buf,
size_t offset,
void *v,
size_t len);
189 int sshbuf_get_string(struct sshbuf *buf, u_char **valp,
size_t *lenp);
190 int sshbuf_get_cstring(struct sshbuf *buf,
char **valp,
size_t *lenp);
191 int sshbuf_get_stringb(struct sshbuf *buf, struct sshbuf *v);
192 int sshbuf_put_string(struct sshbuf *buf, const
void *v,
size_t len);
193 int sshbuf_put_cstring(struct sshbuf *buf, const
char *v);
194 int sshbuf_put_stringb(struct sshbuf *buf, const struct sshbuf *v);
201 int sshbuf_get_string_direct(struct sshbuf *buf, const u_char **valp,
205 #define sshbuf_skip_string(buf) sshbuf_get_string_direct(buf, NULL, NULL)
208 int sshbuf_peek_string_direct(
const struct sshbuf *buf,
const u_char **valp,
215 int sshbuf_put_bignum2_bytes(
struct sshbuf *buf,
const void *v,
size_t len);
216 int sshbuf_get_bignum2_bytes_direct(
struct sshbuf *buf,
217 const u_char **valp,
size_t *lenp);
219 int sshbuf_get_bignum2(
struct sshbuf *buf, BIGNUM **valp);
220 int sshbuf_put_bignum2(
struct sshbuf *buf,
const BIGNUM *v);
221 # ifdef OPENSSL_HAS_ECC
222 int sshbuf_get_ec(
struct sshbuf *buf, EC_POINT *v,
const EC_GROUP *g);
223 int sshbuf_get_eckey(
struct sshbuf *buf, EC_KEY *v);
224 int sshbuf_put_ec(
struct sshbuf *buf,
const EC_POINT *v,
const EC_GROUP *g);
225 int sshbuf_put_eckey(
struct sshbuf *buf,
const EC_KEY *v);
230 void sshbuf_dump(
const struct sshbuf *buf, FILE *f);
233 void sshbuf_dump_data(
const void *s,
size_t len, FILE *f);
236 char *sshbuf_dtob16(
struct sshbuf *buf);
239 char *sshbuf_dtob64_string(
const struct sshbuf *buf,
int wrap);
240 int sshbuf_dtob64(
const struct sshbuf *d,
struct sshbuf *b64,
int wrap);
242 int sshbuf_dtourlb64(
const struct sshbuf *d,
struct sshbuf *b64,
int wrap);
245 int sshbuf_b64tod(
struct sshbuf *buf,
const char *b64);
259 int sshbuf_cmp(
const struct sshbuf *b,
size_t offset,
260 const void *s,
size_t len);
271 sshbuf_find(
const struct sshbuf *b,
size_t start_offset,
272 const void *s,
size_t len,
size_t *offsetp);
279 char *sshbuf_dup_string(
struct sshbuf *buf);
285 int sshbuf_load_fd(
int,
struct sshbuf **)
286 __attribute__((__nonnull__ (2)));
287 int sshbuf_load_file(const
char *, struct sshbuf **)
288 __attribute__((__nonnull__ (2)));
294 int sshbuf_write_file(const
char *path, struct sshbuf *buf)
295 __attribute__((__nonnull__ (2)));
298 int sshbuf_read(
int, struct sshbuf *,
size_t,
size_t *)
299 __attribute__((__nonnull__ (2)));
302 #define PEEK_U64(p) \
303 (((u_int64_t)(((const u_char *)(p))[0]) << 56) | \
304 ((u_int64_t)(((const u_char *)(p))[1]) << 48) | \
305 ((u_int64_t)(((const u_char *)(p))[2]) << 40) | \
306 ((u_int64_t)(((const u_char *)(p))[3]) << 32) | \
307 ((u_int64_t)(((const u_char *)(p))[4]) << 24) | \
308 ((u_int64_t)(((const u_char *)(p))[5]) << 16) | \
309 ((u_int64_t)(((const u_char *)(p))[6]) << 8) | \
310 (u_int64_t)(((const u_char *)(p))[7]))
311 #define PEEK_U32(p) \
312 (((u_int32_t)(((const u_char *)(p))[0]) << 24) | \
313 ((u_int32_t)(((const u_char *)(p))[1]) << 16) | \
314 ((u_int32_t)(((const u_char *)(p))[2]) << 8) | \
315 (u_int32_t)(((const u_char *)(p))[3]))
316 #define PEEK_U16(p) \
317 (((u_int16_t)(((const u_char *)(p))[0]) << 8) | \
318 (u_int16_t)(((const u_char *)(p))[1]))
320 #define POKE_U64(p, v) \
322 const u_int64_t __v = (v); \
323 ((u_char *)(p))[0] = (__v >> 56) & 0xff; \
324 ((u_char *)(p))[1] = (__v >> 48) & 0xff; \
325 ((u_char *)(p))[2] = (__v >> 40) & 0xff; \
326 ((u_char *)(p))[3] = (__v >> 32) & 0xff; \
327 ((u_char *)(p))[4] = (__v >> 24) & 0xff; \
328 ((u_char *)(p))[5] = (__v >> 16) & 0xff; \
329 ((u_char *)(p))[6] = (__v >> 8) & 0xff; \
330 ((u_char *)(p))[7] = __v & 0xff; \
332 #define POKE_U32(p, v) \
334 const u_int32_t __v = (v); \
335 ((u_char *)(p))[0] = (__v >> 24) & 0xff; \
336 ((u_char *)(p))[1] = (__v >> 16) & 0xff; \
337 ((u_char *)(p))[2] = (__v >> 8) & 0xff; \
338 ((u_char *)(p))[3] = __v & 0xff; \
340 #define POKE_U16(p, v) \
342 const u_int16_t __v = (v); \
343 ((u_char *)(p))[0] = (__v >> 8) & 0xff; \
344 ((u_char *)(p))[1] = __v & 0xff; \
348 #ifdef SSHBUF_INTERNAL
353 size_t sshbuf_alloc(
const struct sshbuf *buf);
358 int sshbuf_set_parent(
struct sshbuf *child,
struct sshbuf *parent);
363 const struct sshbuf *sshbuf_parent(
const struct sshbuf *buf);
368 u_int sshbuf_refcount(
const struct sshbuf *buf);
370 # define SSHBUF_SIZE_INIT 256
371 # define SSHBUF_SIZE_INC 256
372 # define SSHBUF_PACK_MIN 8192
377 # ifndef SSHBUF_ABORT
378 # define SSHBUF_ABORT()
382 # define SSHBUF_DBG(x) do { \
383 printf("%s:%d %s: ", __FILE__, __LINE__, __func__); \
389 # define SSHBUF_DBG(x)