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lightningd/cryptomsg: test routines.
This creates output similar to the BOLT #8 test vectors. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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check: lightningd/tests | ||
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# Note that these actually #include everything they need, except ccan/ and bitcoin/. | ||
# That allows for unit testing of statics, and special effects. | ||
LIGHTNINGD_TEST_SRC := $(wildcard lightningd/test/run-*.c) | ||
LIGHTNINGD_TEST_OBJS := $(LIGHTNINGD_TEST_SRC:.c=.o) | ||
LIGHTNINGD_TEST_PROGRAMS := $(LIGHTNINGD_TEST_OBJS:.o=) | ||
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update-mocks: $(LIGHTNINGD_TEST_SRC:%=update-mocks/%) | ||
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$(LIGHTNINGD_TEST_PROGRAMS): $(CCAN_OBJS) $(BITCOIN_OBJS) $(WIRE_OBJS) $(LIBBASE58_OBJS) libsecp256k1.a utils.o $(LIGHTNINGD_HANDSHAKE_GEN_SRC:.c=.o) | ||
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$(LIGHTNINGD_TEST_OBJS): $(LIGHTNINGD_HEADERS) $(BITCOIN_HEADERS) $(CORE_HEADERS) $(GEN_HEADERS) $(WIRE_HEADERS) $(CCAN_HEADERS) $(LIBBASE58_HEADERS) | ||
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lightningd/tests: $(LIGHTNINGD_TEST_PROGRAMS:%=unittest/%) | ||
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#include <assert.h> | ||
#include <ccan/str/hex/hex.h> | ||
#include <ccan/tal/str/str.h> | ||
#include <status.h> | ||
#include <stdio.h> | ||
#include <wire/wire_io.h> | ||
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#undef io_read | ||
#undef io_write | ||
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static char *read_buf; | ||
static size_t read_buf_len; | ||
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static void do_read(void *buf, size_t len) | ||
{ | ||
assert(len <= read_buf_len); | ||
memcpy(buf, read_buf, len); | ||
read_buf += len; | ||
read_buf_len -= len; | ||
} | ||
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#define io_read(conn, p, len, next, arg) \ | ||
(do_read((p), (len)), (next)((conn), (arg)), NULL) | ||
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static char *write_buf; | ||
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static void do_write(const void *buf, size_t len) | ||
{ | ||
size_t oldlen = tal_count(write_buf); | ||
tal_resize(&write_buf, oldlen + len); | ||
memcpy(write_buf + oldlen, buf, len); | ||
} | ||
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#define io_write(conn, p, len, next, arg) \ | ||
(do_write((p), (len)), (next)((conn), (arg)), NULL) | ||
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#define status_trace(fmt, ...) \ | ||
printf(fmt "\n", __VA_ARGS__) | ||
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#include "../cryptomsg.c" | ||
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const void *trc; | ||
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static struct io_plan *check_msg_write(struct io_conn *conn, struct peer *peer) | ||
{ | ||
assert(tal_count(write_buf) == 2 + 16 + 5 + 16); | ||
return NULL; | ||
} | ||
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static struct io_plan *check_msg_read(struct io_conn *conn, struct peer *peer, | ||
u8 *msg) | ||
{ | ||
assert(tal_count(msg) == 5); | ||
assert(memcmp(msg, "hello", 5) == 0); | ||
return NULL; | ||
} | ||
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static struct sha256 sha256_from_hex(const char *hex) | ||
{ | ||
struct sha256 sha256; | ||
hex += 2; | ||
if (!hex_decode(hex, strlen(hex), &sha256, sizeof(sha256))) | ||
abort(); | ||
return sha256; | ||
} | ||
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int main(void) | ||
{ | ||
tal_t *tmpctx = tal_tmpctx(NULL); | ||
struct crypto_state *cs_out, *cs_in; | ||
struct sha256 sk, rk, ck; | ||
const void *msg = tal_dup_arr(tmpctx, char, "hello", 5, 0); | ||
size_t i; | ||
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trc = tal_tmpctx(tmpctx); | ||
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/* BOLT #8: | ||
* | ||
* name: transport-initiator successful handshake | ||
*... | ||
* # ck,temp_k3=0x919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01,0x981a46c820fb7a241bc8184ba4bb1f01bcdfafb00dde80098cb8c38db9141520 | ||
* # encryptWithAD(0x981a46c820fb7a241bc8184ba4bb1f01bcdfafb00dde80098cb8c38db9141520, 0x000000000000000000000000, 0x5dcb5ea9b4ccc755e0e3456af3990641276e1d5dc9afd82f974d90a47c918660, <empty>) | ||
* # t=0x8dc68b1c466263b47fdf31e560e139ba | ||
* output: 0x00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba | ||
* # HKDF(0x919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01,zero) | ||
* output: sk,rk=0x969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9,0xbb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442 | ||
*/ | ||
ck = sha256_from_hex("0x919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01"); | ||
sk = sha256_from_hex("0x969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9"); | ||
rk = sha256_from_hex("0xbb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442"); | ||
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cs_out = crypto_state(tmpctx, &sk, &rk, &ck, &ck, 0, 0); | ||
cs_in = crypto_state(tmpctx, &rk, &sk, &ck, &ck, 0, 0); | ||
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for (i = 0; i < 1002; i++) { | ||
write_buf = tal_arr(tmpctx, char, 0); | ||
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peer_write_message(NULL, cs_out, msg, check_msg_write); | ||
if ((i % 500) < 2) | ||
status_trace("output %zu: 0x%s", i, | ||
tal_hex(tmpctx, write_buf)); | ||
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read_buf = write_buf; | ||
read_buf_len = tal_count(read_buf); | ||
write_buf = tal_arr(tmpctx, char, 0); | ||
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peer_read_message(NULL, cs_in, check_msg_read); | ||
assert(read_buf_len == 0); | ||
} | ||
tal_free(tmpctx); | ||
return 0; | ||
} |