summaryrefslogtreecommitdiff
path: root/test/unit/core/test_pbuf.c
diff options
context:
space:
mode:
Diffstat (limited to 'test/unit/core/test_pbuf.c')
-rw-r--r--test/unit/core/test_pbuf.c359
1 files changed, 359 insertions, 0 deletions
diff --git a/test/unit/core/test_pbuf.c b/test/unit/core/test_pbuf.c
new file mode 100644
index 00000000000..6163e4fabef
--- /dev/null
+++ b/test/unit/core/test_pbuf.c
@@ -0,0 +1,359 @@
+#include "test_pbuf.h"
+
+#include "lwip/pbuf.h"
+#include "lwip/stats.h"
+
+#if !LWIP_STATS || !MEM_STATS ||!MEMP_STATS
+#error "This tests needs MEM- and MEMP-statistics enabled"
+#endif
+#if !LWIP_TCP || !TCP_QUEUE_OOSEQ || !LWIP_WND_SCALE
+#error "This test needs TCP OOSEQ queueing and window scaling enabled"
+#endif
+
+/* Setups/teardown functions */
+
+static void
+pbuf_setup(void)
+{
+ lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT));
+}
+
+static void
+pbuf_teardown(void)
+{
+ lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT));
+}
+
+
+#define TESTBUFSIZE_1 65535
+#define TESTBUFSIZE_2 65530
+#define TESTBUFSIZE_3 50050
+static u8_t testbuf_1[TESTBUFSIZE_1];
+static u8_t testbuf_1a[TESTBUFSIZE_1];
+static u8_t testbuf_2[TESTBUFSIZE_2];
+static u8_t testbuf_2a[TESTBUFSIZE_2];
+static u8_t testbuf_3[TESTBUFSIZE_3];
+static u8_t testbuf_3a[TESTBUFSIZE_3];
+
+/* Test functions */
+START_TEST(test_pbuf_alloc_zero_pbufs)
+{
+ struct pbuf *p;
+ LWIP_UNUSED_ARG(_i);
+
+ p = pbuf_alloc(PBUF_RAW, 0, PBUF_ROM);
+ fail_unless(p != NULL);
+ if (p != NULL) {
+ pbuf_free(p);
+ }
+
+ p = pbuf_alloc(PBUF_RAW, 0, PBUF_RAM);
+ fail_unless(p != NULL);
+ if (p != NULL) {
+ pbuf_free(p);
+ }
+
+ p = pbuf_alloc(PBUF_RAW, 0, PBUF_REF);
+ fail_unless(p != NULL);
+ if (p != NULL) {
+ pbuf_free(p);
+ }
+
+ p = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
+ fail_unless(p != NULL);
+ if (p != NULL) {
+ pbuf_free(p);
+ }
+}
+END_TEST
+
+/** Call pbuf_copy on a pbuf with zero length */
+START_TEST(test_pbuf_copy_zero_pbuf)
+{
+ struct pbuf *p1, *p2, *p3;
+ err_t err;
+ LWIP_UNUSED_ARG(_i);
+
+ p1 = pbuf_alloc(PBUF_RAW, 1024, PBUF_RAM);
+ fail_unless(p1 != NULL);
+ fail_unless(p1->ref == 1);
+
+ p2 = pbuf_alloc(PBUF_RAW, 2, PBUF_POOL);
+ fail_unless(p2 != NULL);
+ fail_unless(p2->ref == 1);
+ p2->len = p2->tot_len = 0;
+
+ pbuf_cat(p1, p2);
+ fail_unless(p1->ref == 1);
+ fail_unless(p2->ref == 1);
+
+ p3 = pbuf_alloc(PBUF_RAW, p1->tot_len, PBUF_POOL);
+ err = pbuf_copy(p3, p1);
+ fail_unless(err == ERR_VAL);
+
+ pbuf_free(p1);
+ pbuf_free(p3);
+}
+END_TEST
+
+/** Call pbuf_copy on pbufs with chains of different sizes */
+START_TEST(test_pbuf_copy_unmatched_chains)
+{
+ uint16_t i, j;
+ err_t err;
+ struct pbuf *source, *dest, *p;
+ LWIP_UNUSED_ARG(_i);
+
+ source = NULL;
+ /* Build source pbuf from linked 16 byte parts,
+ * with payload bytes containing their offset */
+ for (i = 0; i < 8; i++) {
+ p = pbuf_alloc(PBUF_RAW, 16, PBUF_RAM);
+ fail_unless(p != NULL);
+ for (j = 0; j < p->len; j++) {
+ ((u8_t*)p->payload)[j] = (u8_t)((i << 4) | j);
+ }
+ if (source) {
+ pbuf_cat(source, p);
+ } else {
+ source = p;
+ }
+ }
+ for (i = 0; i < source->tot_len; i++) {
+ fail_unless(pbuf_get_at(source, i) == i);
+ }
+
+ /* Build dest pbuf from other lengths */
+ dest = pbuf_alloc(PBUF_RAW, 35, PBUF_RAM);
+ fail_unless(dest != NULL);
+ p = pbuf_alloc(PBUF_RAW, 81, PBUF_RAM);
+ fail_unless(p != NULL);
+ pbuf_cat(dest, p);
+ p = pbuf_alloc(PBUF_RAW, 27, PBUF_RAM);
+ fail_unless(p != NULL);
+ pbuf_cat(dest, p);
+
+ /* Copy contents and verify data */
+ err = pbuf_copy(dest, source);
+ fail_unless(err == ERR_OK);
+ for (i = 0; i < source->tot_len; i++) {
+ fail_unless(pbuf_get_at(dest, i) == i);
+ }
+
+ pbuf_free(source);
+ pbuf_free(dest);
+}
+END_TEST
+
+START_TEST(test_pbuf_copy_partial_pbuf)
+{
+ struct pbuf *a, *b, *dest;
+ char lwip[] = "lwip ";
+ char packet[] = "packet";
+ err_t err;
+ LWIP_UNUSED_ARG(_i);
+
+ a = pbuf_alloc(PBUF_RAW, 5, PBUF_REF);
+ fail_unless(a != NULL);
+ a->payload = lwip;
+ b = pbuf_alloc(PBUF_RAW, 7, PBUF_REF);
+ fail_unless(b != NULL);
+ b->payload = packet;
+ pbuf_cat(a, b);
+ dest = pbuf_alloc(PBUF_RAW, 14, PBUF_RAM);
+ memset(dest->payload, 0, dest->len);
+ fail_unless(dest != NULL);
+
+ /* Don't copy if data will not fit */
+ err = pbuf_copy_partial_pbuf(dest, a, a->tot_len, 4);
+ fail_unless(err == ERR_ARG);
+ /* Don't copy if length is longer than source */
+ err = pbuf_copy_partial_pbuf(dest, a, a->tot_len + 1, 0);
+ fail_unless(err == ERR_ARG);
+ /* Normal copy */
+ err = pbuf_copy_partial_pbuf(dest, a, a->tot_len, 0);
+ fail_unless(err == ERR_OK);
+ fail_unless(strcmp("lwip packet", (char*)dest->payload) == 0);
+ /* Copy at offset */
+ err = pbuf_copy_partial_pbuf(dest, a, a->tot_len, 1);
+ fail_unless(err == ERR_OK);
+ fail_unless(strcmp("llwip packet", (char*)dest->payload) == 0);
+ /* Copy at offset with shorter length */
+ err = pbuf_copy_partial_pbuf(dest, a, 6, 6);
+ fail_unless(err == ERR_OK);
+ fail_unless(strcmp("llwip lwip p", (char*)dest->payload) == 0);
+ /* Copy with shorter length */
+ err = pbuf_copy_partial_pbuf(dest, a, 5, 0);
+ fail_unless(err == ERR_OK);
+ fail_unless(strcmp("lwip lwip p", (char*)dest->payload) == 0);
+
+ pbuf_free(dest);
+ pbuf_free(a);
+}
+END_TEST
+
+START_TEST(test_pbuf_split_64k_on_small_pbufs)
+{
+ struct pbuf *p, *rest=NULL;
+ LWIP_UNUSED_ARG(_i);
+
+ p = pbuf_alloc(PBUF_RAW, 1, PBUF_POOL);
+ pbuf_split_64k(p, &rest);
+ fail_unless(p->tot_len == 1);
+ pbuf_free(p);
+}
+END_TEST
+
+START_TEST(test_pbuf_queueing_bigger_than_64k)
+{
+ int i;
+ err_t err;
+ struct pbuf *p1, *p2, *p3, *rest2=NULL, *rest3=NULL;
+ LWIP_UNUSED_ARG(_i);
+
+ for(i = 0; i < TESTBUFSIZE_1; i++) {
+ testbuf_1[i] = (u8_t)rand();
+ }
+ for(i = 0; i < TESTBUFSIZE_2; i++) {
+ testbuf_2[i] = (u8_t)rand();
+ }
+ for(i = 0; i < TESTBUFSIZE_3; i++) {
+ testbuf_3[i] = (u8_t)rand();
+ }
+
+ p1 = pbuf_alloc(PBUF_RAW, TESTBUFSIZE_1, PBUF_POOL);
+ fail_unless(p1 != NULL);
+ p2 = pbuf_alloc(PBUF_RAW, TESTBUFSIZE_2, PBUF_POOL);
+ fail_unless(p2 != NULL);
+ p3 = pbuf_alloc(PBUF_RAW, TESTBUFSIZE_3, PBUF_POOL);
+ fail_unless(p3 != NULL);
+ err = pbuf_take(p1, testbuf_1, TESTBUFSIZE_1);
+ fail_unless(err == ERR_OK);
+ err = pbuf_take(p2, testbuf_2, TESTBUFSIZE_2);
+ fail_unless(err == ERR_OK);
+ err = pbuf_take(p3, testbuf_3, TESTBUFSIZE_3);
+ fail_unless(err == ERR_OK);
+
+ pbuf_cat(p1, p2);
+ pbuf_cat(p1, p3);
+
+ pbuf_split_64k(p1, &rest2);
+ fail_unless(p1->tot_len == TESTBUFSIZE_1);
+ fail_unless(rest2->tot_len == (u16_t)((TESTBUFSIZE_2+TESTBUFSIZE_3) & 0xFFFF));
+ pbuf_split_64k(rest2, &rest3);
+ fail_unless(rest2->tot_len == TESTBUFSIZE_2);
+ fail_unless(rest3->tot_len == TESTBUFSIZE_3);
+
+ pbuf_copy_partial(p1, testbuf_1a, TESTBUFSIZE_1, 0);
+ pbuf_copy_partial(rest2, testbuf_2a, TESTBUFSIZE_2, 0);
+ pbuf_copy_partial(rest3, testbuf_3a, TESTBUFSIZE_3, 0);
+ fail_if(memcmp(testbuf_1, testbuf_1a, TESTBUFSIZE_1));
+ fail_if(memcmp(testbuf_2, testbuf_2a, TESTBUFSIZE_2));
+ fail_if(memcmp(testbuf_3, testbuf_3a, TESTBUFSIZE_3));
+
+ pbuf_free(p1);
+ pbuf_free(rest2);
+ pbuf_free(rest3);
+}
+END_TEST
+
+/* Test for bug that writing with pbuf_take_at() did nothing
+ * and returned ERR_OK when writing at beginning of a pbuf
+ * in the chain.
+ */
+START_TEST(test_pbuf_take_at_edge)
+{
+ err_t res;
+ u8_t *out;
+ int i;
+ u8_t testdata[] = { 0x01, 0x08, 0x82, 0x02 };
+ struct pbuf *p = pbuf_alloc(PBUF_RAW, 1024, PBUF_POOL);
+ struct pbuf *q = p->next;
+ LWIP_UNUSED_ARG(_i);
+ /* alloc big enough to get a chain of pbufs */
+ fail_if(p->tot_len == p->len);
+ memset(p->payload, 0, p->len);
+ memset(q->payload, 0, q->len);
+
+ /* copy data to the beginning of first pbuf */
+ res = pbuf_take_at(p, &testdata, sizeof(testdata), 0);
+ fail_unless(res == ERR_OK);
+
+ out = (u8_t*)p->payload;
+ for (i = 0; i < (int)sizeof(testdata); i++) {
+ fail_unless(out[i] == testdata[i],
+ "Bad data at pos %d, was %02X, expected %02X", i, out[i], testdata[i]);
+ }
+
+ /* copy data to the just before end of first pbuf */
+ res = pbuf_take_at(p, &testdata, sizeof(testdata), p->len - 1);
+ fail_unless(res == ERR_OK);
+
+ out = (u8_t*)p->payload;
+ fail_unless(out[p->len - 1] == testdata[0],
+ "Bad data at pos %d, was %02X, expected %02X", p->len - 1, out[p->len - 1], testdata[0]);
+ out = (u8_t*)q->payload;
+ for (i = 1; i < (int)sizeof(testdata); i++) {
+ fail_unless(out[i-1] == testdata[i],
+ "Bad data at pos %d, was %02X, expected %02X", p->len - 1 + i, out[i-1], testdata[i]);
+ }
+
+ /* copy data to the beginning of second pbuf */
+ res = pbuf_take_at(p, &testdata, sizeof(testdata), p->len);
+ fail_unless(res == ERR_OK);
+
+ out = (u8_t*)p->payload;
+ for (i = 0; i < (int)sizeof(testdata); i++) {
+ fail_unless(out[i] == testdata[i],
+ "Bad data at pos %d, was %02X, expected %02X", p->len+i, out[i], testdata[i]);
+ }
+ pbuf_free(p);
+}
+END_TEST
+
+/* Verify pbuf_put_at()/pbuf_get_at() when using
+ * offsets equal to beginning of new pbuf in chain
+ */
+START_TEST(test_pbuf_get_put_at_edge)
+{
+ u8_t *out;
+ u8_t testdata = 0x01;
+ u8_t getdata;
+ struct pbuf *p = pbuf_alloc(PBUF_RAW, 1024, PBUF_POOL);
+ struct pbuf *q = p->next;
+ LWIP_UNUSED_ARG(_i);
+ /* alloc big enough to get a chain of pbufs */
+ fail_if(p->tot_len == p->len);
+ memset(p->payload, 0, p->len);
+ memset(q->payload, 0, q->len);
+
+ /* put byte at the beginning of second pbuf */
+ pbuf_put_at(p, p->len, testdata);
+
+ out = (u8_t*)q->payload;
+ fail_unless(*out == testdata,
+ "Bad data at pos %d, was %02X, expected %02X", p->len, *out, testdata);
+
+ getdata = pbuf_get_at(p, p->len);
+ fail_unless(*out == getdata,
+ "pbuf_get_at() returned bad data at pos %d, was %02X, expected %02X", p->len, getdata, *out);
+ pbuf_free(p);
+}
+END_TEST
+
+/** Create the suite including all tests for this module */
+Suite *
+pbuf_suite(void)
+{
+ testfunc tests[] = {
+ TESTFUNC(test_pbuf_alloc_zero_pbufs),
+ TESTFUNC(test_pbuf_copy_zero_pbuf),
+ TESTFUNC(test_pbuf_copy_unmatched_chains),
+ TESTFUNC(test_pbuf_copy_partial_pbuf),
+ TESTFUNC(test_pbuf_split_64k_on_small_pbufs),
+ TESTFUNC(test_pbuf_queueing_bigger_than_64k),
+ TESTFUNC(test_pbuf_take_at_edge),
+ TESTFUNC(test_pbuf_get_put_at_edge)
+ };
+ return create_suite("PBUF", tests, sizeof(tests)/sizeof(testfunc), pbuf_setup, pbuf_teardown);
+}
generated by cgit v1.2.3 (git 2.0.4) at 2025-09-21 18:09:28 +0000