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/* $OpenBSD: test_sshbuf.c,v 1.1 2014/04/30 05:32:00 djm Exp $ */
/*
* Regress test for sshbuf.h buffer API
*
* Placed in the public domain
*/
#include <sys/types.h>
#include <sys/param.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "test_helper.h"
#include "ssherr.h"
#define SSHBUF_INTERNAL 1 /* access internals for testing */
#include "sshbuf.h"
void sshbuf_tests(void);
void
sshbuf_tests(void)
{
struct sshbuf *p1;
const u_char *cdp;
u_char *dp;
size_t sz;
int r;
TEST_START("allocate sshbuf");
p1 = sshbuf_new();
ASSERT_PTR_NE(p1, NULL);
TEST_DONE();
TEST_START("max size on fresh buffer");
ASSERT_SIZE_T_GT(sshbuf_max_size(p1), 0);
TEST_DONE();
TEST_START("available on fresh buffer");
ASSERT_SIZE_T_GT(sshbuf_avail(p1), 0);
TEST_DONE();
TEST_START("len = 0 on empty buffer");
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 0);
TEST_DONE();
TEST_START("set valid max size");
ASSERT_INT_EQ(sshbuf_set_max_size(p1, 65536), 0);
ASSERT_SIZE_T_EQ(sshbuf_max_size(p1), 65536);
TEST_DONE();
TEST_START("available on limited buffer");
ASSERT_SIZE_T_EQ(sshbuf_avail(p1), 65536);
TEST_DONE();
TEST_START("free");
sshbuf_free(p1);
TEST_DONE();
TEST_START("consume on empty buffer");
p1 = sshbuf_new();
ASSERT_PTR_NE(p1, NULL);
ASSERT_INT_EQ(sshbuf_consume(p1, 0), 0);
ASSERT_INT_EQ(sshbuf_consume(p1, 1), SSH_ERR_MESSAGE_INCOMPLETE);
sshbuf_free(p1);
TEST_DONE();
TEST_START("consume_end on empty buffer");
p1 = sshbuf_new();
ASSERT_PTR_NE(p1, NULL);
ASSERT_INT_EQ(sshbuf_consume_end(p1, 0), 0);
ASSERT_INT_EQ(sshbuf_consume_end(p1, 1), SSH_ERR_MESSAGE_INCOMPLETE);
sshbuf_free(p1);
TEST_DONE();
TEST_START("reserve space");
p1 = sshbuf_new();
ASSERT_PTR_NE(p1, NULL);
r = sshbuf_reserve(p1, 1, &dp);
ASSERT_INT_EQ(r, 0);
ASSERT_PTR_NE(dp, NULL);
*dp = 0x11;
r = sshbuf_reserve(p1, 3, &dp);
ASSERT_INT_EQ(r, 0);
ASSERT_PTR_NE(dp, NULL);
*dp++ = 0x22;
*dp++ = 0x33;
*dp++ = 0x44;
TEST_DONE();
TEST_START("sshbuf_len on filled buffer");
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 4);
TEST_DONE();
TEST_START("sshbuf_ptr on filled buffer");
cdp = sshbuf_ptr(p1);
ASSERT_PTR_NE(cdp, NULL);
ASSERT_U8_EQ(cdp[0], 0x11);
ASSERT_U8_EQ(cdp[1], 0x22);
ASSERT_U8_EQ(cdp[2], 0x33);
ASSERT_U8_EQ(cdp[3], 0x44);
TEST_DONE();
TEST_START("consume on filled buffer");
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 4);
ASSERT_INT_EQ(sshbuf_consume(p1, 0), 0);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 4);
r = sshbuf_consume(p1, 64);
ASSERT_INT_EQ(r, SSH_ERR_MESSAGE_INCOMPLETE);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 4);
ASSERT_INT_EQ(sshbuf_consume(p1, 1), 0);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 3);
cdp = sshbuf_ptr(p1);
ASSERT_PTR_NE(p1, NULL);
ASSERT_U8_EQ(cdp[0], 0x22);
ASSERT_INT_EQ(sshbuf_consume(p1, 2), 0);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 1);
cdp = sshbuf_ptr(p1);
ASSERT_PTR_NE(p1, NULL);
ASSERT_U8_EQ(cdp[0], 0x44);
r = sshbuf_consume(p1, 2);
ASSERT_INT_EQ(r, SSH_ERR_MESSAGE_INCOMPLETE);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 1);
ASSERT_INT_EQ(sshbuf_consume(p1, 1), 0);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 0);
r = sshbuf_consume(p1, 1);
ASSERT_INT_EQ(r, SSH_ERR_MESSAGE_INCOMPLETE);
sshbuf_free(p1);
TEST_DONE();
TEST_START("consume_end on filled buffer");
p1 = sshbuf_new();
ASSERT_PTR_NE(p1, NULL);
r = sshbuf_reserve(p1, 4, &dp);
ASSERT_INT_EQ(r, 0);
ASSERT_PTR_NE(dp, NULL);
*dp++ = 0x11;
*dp++ = 0x22;
*dp++ = 0x33;
*dp++ = 0x44;
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 4);
r = sshbuf_consume_end(p1, 5);
ASSERT_INT_EQ(r, SSH_ERR_MESSAGE_INCOMPLETE);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 4);
ASSERT_INT_EQ(sshbuf_consume_end(p1, 3), 0);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 1);
cdp = sshbuf_ptr(p1);
ASSERT_PTR_NE(cdp, NULL);
ASSERT_U8_EQ(*cdp, 0x11);
r = sshbuf_consume_end(p1, 2);
ASSERT_INT_EQ(r, SSH_ERR_MESSAGE_INCOMPLETE);
ASSERT_INT_EQ(sshbuf_consume_end(p1, 1), 0);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 0);
sshbuf_free(p1);
TEST_DONE();
TEST_START("fill limited buffer");
p1 = sshbuf_new();
ASSERT_PTR_NE(p1, NULL);
ASSERT_INT_EQ(sshbuf_set_max_size(p1, 1223), 0);
ASSERT_SIZE_T_EQ(sshbuf_max_size(p1), 1223);
ASSERT_SIZE_T_EQ(sshbuf_avail(p1), 1223);
r = sshbuf_reserve(p1, 1223, &dp);
ASSERT_INT_EQ(r, 0);
ASSERT_PTR_NE(dp, NULL);
memset(dp, 0xd7, 1223);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 1223);
ASSERT_SIZE_T_EQ(sshbuf_avail(p1), 0);
r = sshbuf_reserve(p1, 1, &dp);
ASSERT_INT_EQ(r, SSH_ERR_NO_BUFFER_SPACE);
ASSERT_PTR_EQ(dp, NULL);
TEST_DONE();
TEST_START("consume and force compaction");
ASSERT_INT_EQ(sshbuf_consume(p1, 223), 0);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 1000);
ASSERT_SIZE_T_EQ(sshbuf_avail(p1), 223);
r = sshbuf_reserve(p1, 224, &dp);
ASSERT_INT_EQ(r, SSH_ERR_NO_BUFFER_SPACE);
ASSERT_PTR_EQ(dp, NULL);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 1000);
ASSERT_SIZE_T_EQ(sshbuf_avail(p1), 223);
r = sshbuf_reserve(p1, 223, &dp);
ASSERT_INT_EQ(r, 0);
ASSERT_PTR_NE(dp, NULL);
memset(dp, 0x7d, 223);
cdp = sshbuf_ptr(p1);
ASSERT_PTR_NE(cdp, NULL);
ASSERT_MEM_FILLED_EQ(cdp, 0xd7, 1000);
ASSERT_MEM_FILLED_EQ(cdp + 1000, 0x7d, 223);
TEST_DONE();
TEST_START("resize full buffer");
r = sshbuf_set_max_size(p1, 1000);
ASSERT_INT_EQ(r, SSH_ERR_NO_BUFFER_SPACE);
sz = roundup(1223 + SSHBUF_SIZE_INC * 3, SSHBUF_SIZE_INC);
ASSERT_INT_EQ(sshbuf_set_max_size(p1, sz), 0);
ASSERT_SIZE_T_EQ(sshbuf_max_size(p1), sz);
ASSERT_SIZE_T_EQ(sshbuf_avail(p1), sz - 1223);
ASSERT_INT_EQ(sshbuf_len(p1), 1223);
TEST_DONE();
/* NB. uses sshbuf internals */
TEST_START("alloc chunking");
r = sshbuf_reserve(p1, 1, &dp);
ASSERT_INT_EQ(r, 0);
ASSERT_PTR_NE(dp, NULL);
*dp = 0xff;
cdp = sshbuf_ptr(p1);
ASSERT_PTR_NE(cdp, NULL);
ASSERT_MEM_FILLED_EQ(cdp, 0xd7, 1000);
ASSERT_MEM_FILLED_EQ(cdp + 1000, 0x7d, 223);
ASSERT_MEM_FILLED_EQ(cdp + 1223, 0xff, 1);
ASSERT_SIZE_T_EQ(sshbuf_alloc(p1) % SSHBUF_SIZE_INC, 0);
sshbuf_free(p1);
TEST_DONE();
TEST_START("reset buffer");
p1 = sshbuf_new();
ASSERT_PTR_NE(p1, NULL);
ASSERT_INT_EQ(sshbuf_set_max_size(p1, 1223), 0);
ASSERT_SIZE_T_EQ(sshbuf_max_size(p1), 1223);
r = sshbuf_reserve(p1, 1223, &dp);
ASSERT_INT_EQ(r, 0);
ASSERT_PTR_NE(dp, NULL);
memset(dp, 0xd7, 1223);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 1223);
sshbuf_reset(p1);
ASSERT_SIZE_T_EQ(sshbuf_max_size(p1), 1223);
ASSERT_SIZE_T_EQ(sshbuf_len(p1), 0);
ASSERT_SIZE_T_EQ(sshbuf_avail(p1), 1223);
sshbuf_free(p1);
TEST_DONE();
}
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