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-rw-r--r--regress/unittests/sshbuf/test_sshbuf.c243
1 files changed, 243 insertions, 0 deletions
diff --git a/regress/unittests/sshbuf/test_sshbuf.c b/regress/unittests/sshbuf/test_sshbuf.c
new file mode 100644
index 0000000..e22b390
--- /dev/null
+++ b/regress/unittests/sshbuf/test_sshbuf.c
@@ -0,0 +1,243 @@
+/* $OpenBSD: test_sshbuf.c,v 1.2 2021/12/14 21:25:27 deraadt Exp $ */
+/*
+ * Regress test for sshbuf.h buffer API
+ *
+ * Placed in the public domain
+ */
+
+#define SSHBUF_INTERNAL 1 /* access internals for testing */
+#include "includes.h"
+
+#include <sys/types.h>
+#include <stdio.h>
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+
+#include "../test_helper/test_helper.h"
+
+#include "ssherr.h"
+#include "sshbuf.h"
+
+void sshbuf_tests(void);
+
+#ifndef roundup
+#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
+#endif
+
+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();
+}