945 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			945 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
|   | #include "test_tcp_oos.h"
 | ||
|  | 
 | ||
|  | #include "lwip/tcp_impl.h"
 | ||
|  | #include "lwip/stats.h"
 | ||
|  | #include "tcp_helper.h"
 | ||
|  | 
 | ||
|  | #if !LWIP_STATS || !TCP_STATS || !MEMP_STATS
 | ||
|  | #error "This tests needs TCP- and MEMP-statistics enabled"
 | ||
|  | #endif
 | ||
|  | #if !TCP_QUEUE_OOSEQ
 | ||
|  | #error "This tests needs TCP_QUEUE_OOSEQ enabled"
 | ||
|  | #endif
 | ||
|  | 
 | ||
|  | /** CHECK_SEGMENTS_ON_OOSEQ:
 | ||
|  |  * 1: check count, seqno and len of segments on pcb->ooseq (strict) | ||
|  |  * 0: only check that bytes are received in correct order (less strict) */ | ||
|  | #define CHECK_SEGMENTS_ON_OOSEQ 1
 | ||
|  | 
 | ||
|  | #if CHECK_SEGMENTS_ON_OOSEQ
 | ||
|  | #define EXPECT_OOSEQ(x) EXPECT(x)
 | ||
|  | #else
 | ||
|  | #define EXPECT_OOSEQ(x)
 | ||
|  | #endif
 | ||
|  | 
 | ||
|  | /* helper functions */ | ||
|  | 
 | ||
|  | /** Get the numbers of segments on the ooseq list */ | ||
|  | static int tcp_oos_count(struct tcp_pcb* pcb) | ||
|  | { | ||
|  |   int num = 0; | ||
|  |   struct tcp_seg* seg = pcb->ooseq; | ||
|  |   while(seg != NULL) { | ||
|  |     num++; | ||
|  |     seg = seg->next; | ||
|  |   } | ||
|  |   return num; | ||
|  | } | ||
|  | 
 | ||
|  | /** Get the numbers of pbufs on the ooseq list */ | ||
|  | static int tcp_oos_pbuf_count(struct tcp_pcb* pcb) | ||
|  | { | ||
|  |   int num = 0; | ||
|  |   struct tcp_seg* seg = pcb->ooseq; | ||
|  |   while(seg != NULL) { | ||
|  |     num += pbuf_clen(seg->p); | ||
|  |     seg = seg->next; | ||
|  |   } | ||
|  |   return num; | ||
|  | } | ||
|  | 
 | ||
|  | /** Get the seqno of a segment (by index) on the ooseq list
 | ||
|  |  * | ||
|  |  * @param pcb the pcb to check for ooseq segments | ||
|  |  * @param seg_index index of the segment on the ooseq list | ||
|  |  * @return seqno of the segment | ||
|  |  */ | ||
|  | static u32_t | ||
|  | tcp_oos_seg_seqno(struct tcp_pcb* pcb, int seg_index) | ||
|  | { | ||
|  |   int num = 0; | ||
|  |   struct tcp_seg* seg = pcb->ooseq; | ||
|  | 
 | ||
|  |   /* then check the actual segment */ | ||
|  |   while(seg != NULL) { | ||
|  |     if(num == seg_index) { | ||
|  |       return seg->tcphdr->seqno; | ||
|  |     } | ||
|  |     num++; | ||
|  |     seg = seg->next; | ||
|  |   } | ||
|  |   fail(); | ||
|  |   return 0; | ||
|  | } | ||
|  | 
 | ||
|  | /** Get the tcplen (datalen + SYN/FIN) of a segment (by index) on the ooseq list
 | ||
|  |  * | ||
|  |  * @param pcb the pcb to check for ooseq segments | ||
|  |  * @param seg_index index of the segment on the ooseq list | ||
|  |  * @return tcplen of the segment | ||
|  |  */ | ||
|  | static int | ||
|  | tcp_oos_seg_tcplen(struct tcp_pcb* pcb, int seg_index) | ||
|  | { | ||
|  |   int num = 0; | ||
|  |   struct tcp_seg* seg = pcb->ooseq; | ||
|  | 
 | ||
|  |   /* then check the actual segment */ | ||
|  |   while(seg != NULL) { | ||
|  |     if(num == seg_index) { | ||
|  |       return TCP_TCPLEN(seg); | ||
|  |     } | ||
|  |     num++; | ||
|  |     seg = seg->next; | ||
|  |   } | ||
|  |   fail(); | ||
|  |   return -1; | ||
|  | } | ||
|  | 
 | ||
|  | /** Get the tcplen (datalen + SYN/FIN) of all segments on the ooseq list
 | ||
|  |  * | ||
|  |  * @param pcb the pcb to check for ooseq segments | ||
|  |  * @return tcplen of all segment | ||
|  |  */ | ||
|  | static int | ||
|  | tcp_oos_tcplen(struct tcp_pcb* pcb) | ||
|  | { | ||
|  |   int len = 0; | ||
|  |   struct tcp_seg* seg = pcb->ooseq; | ||
|  | 
 | ||
|  |   /* then check the actual segment */ | ||
|  |   while(seg != NULL) { | ||
|  |     len += TCP_TCPLEN(seg); | ||
|  |     seg = seg->next; | ||
|  |   } | ||
|  |   return len; | ||
|  | } | ||
|  | 
 | ||
|  | /* Setup/teardown functions */ | ||
|  | 
 | ||
|  | static void | ||
|  | tcp_oos_setup(void) | ||
|  | { | ||
|  |   tcp_remove_all(); | ||
|  | } | ||
|  | 
 | ||
|  | static void | ||
|  | tcp_oos_teardown(void) | ||
|  | { | ||
|  |   tcp_remove_all(); | ||
|  | } | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  | /* Test functions */ | ||
|  | 
 | ||
|  | /** create multiple segments and pass them to tcp_input in a wrong
 | ||
|  |  * order to see if ooseq-caching works correctly | ||
|  |  * FIN is received in out-of-sequence segments only */ | ||
|  | START_TEST(test_tcp_recv_ooseq_FIN_OOSEQ) | ||
|  | { | ||
|  |   struct test_tcp_counters counters; | ||
|  |   struct tcp_pcb* pcb; | ||
|  |   struct pbuf *p_8_9, *p_4_8, *p_4_10, *p_2_14, *p_fin, *pinseq; | ||
|  |   char data[] = { | ||
|  |      1,  2,  3,  4, | ||
|  |      5,  6,  7,  8, | ||
|  |      9, 10, 11, 12, | ||
|  |     13, 14, 15, 16}; | ||
|  |   ip_addr_t remote_ip, local_ip; | ||
|  |   u16_t data_len; | ||
|  |   u16_t remote_port = 0x100, local_port = 0x101; | ||
|  |   struct netif netif; | ||
|  |   LWIP_UNUSED_ARG(_i); | ||
|  | 
 | ||
|  |   /* initialize local vars */ | ||
|  |   memset(&netif, 0, sizeof(netif)); | ||
|  |   IP4_ADDR(&local_ip, 192, 168, 1, 1); | ||
|  |   IP4_ADDR(&remote_ip, 192, 168, 1, 2); | ||
|  |   data_len = sizeof(data); | ||
|  |   /* initialize counter struct */ | ||
|  |   memset(&counters, 0, sizeof(counters)); | ||
|  |   counters.expected_data_len = data_len; | ||
|  |   counters.expected_data = data; | ||
|  | 
 | ||
|  |   /* create and initialize the pcb */ | ||
|  |   pcb = test_tcp_new_counters_pcb(&counters); | ||
|  |   EXPECT_RET(pcb != NULL); | ||
|  |   tcp_set_state(pcb, ESTABLISHED, &local_ip, &remote_ip, local_port, remote_port); | ||
|  | 
 | ||
|  |   /* create segments */ | ||
|  |   /* pinseq is sent as last segment! */ | ||
|  |   pinseq = tcp_create_rx_segment(pcb, &data[0],  4, 0, 0, TCP_ACK); | ||
|  |   /* p1: 8 bytes before FIN */ | ||
|  |   /*     seqno: 8..16 */ | ||
|  |   p_8_9  = tcp_create_rx_segment(pcb, &data[8],  8, 8, 0, TCP_ACK|TCP_FIN); | ||
|  |   /* p2: 4 bytes before p1, including the first 4 bytes of p1 (partly duplicate) */ | ||
|  |   /*     seqno: 4..11 */ | ||
|  |   p_4_8  = tcp_create_rx_segment(pcb, &data[4],  8, 4, 0, TCP_ACK); | ||
|  |   /* p3: same as p2 but 2 bytes longer */ | ||
|  |   /*     seqno: 4..13 */ | ||
|  |   p_4_10 = tcp_create_rx_segment(pcb, &data[4], 10, 4, 0, TCP_ACK); | ||
|  |   /* p4: 14 bytes before FIN, includes data from p1 and p2, plus partly from pinseq */ | ||
|  |   /*     seqno: 2..15 */ | ||
|  |   p_2_14 = tcp_create_rx_segment(pcb, &data[2], 14, 2, 0, TCP_ACK); | ||
|  |   /* FIN, seqno 16 */ | ||
|  |   p_fin  = tcp_create_rx_segment(pcb,     NULL,  0,16, 0, TCP_ACK|TCP_FIN); | ||
|  |   EXPECT(pinseq != NULL); | ||
|  |   EXPECT(p_8_9 != NULL); | ||
|  |   EXPECT(p_4_8 != NULL); | ||
|  |   EXPECT(p_4_10 != NULL); | ||
|  |   EXPECT(p_2_14 != NULL); | ||
|  |   EXPECT(p_fin != NULL); | ||
|  |   if ((pinseq != NULL) && (p_8_9 != NULL) && (p_4_8 != NULL) && (p_4_10 != NULL) && (p_2_14 != NULL) && (p_fin != NULL)) { | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_8_9, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 8); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 9); /* includes FIN */ | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_4_8, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 2); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 4); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 4); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 1) == 8); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 1) == 9); /* includes FIN */ | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_4_10, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* ooseq queue: unchanged */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 2); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 4); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 4); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 1) == 8); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 1) == 9); /* includes FIN */ | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_2_14, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 2); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 15); /* includes FIN */ | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_fin, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* ooseq queue: unchanged */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 2); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 15); /* includes FIN */ | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(pinseq, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 1); | ||
|  |     EXPECT(counters.recv_calls == 1); | ||
|  |     EXPECT(counters.recved_bytes == data_len); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     EXPECT(pcb->ooseq == NULL); | ||
|  |   } | ||
|  | 
 | ||
|  |   /* make sure the pcb is freed */ | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 1); | ||
|  |   tcp_abort(pcb); | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 0); | ||
|  | } | ||
|  | END_TEST | ||
|  | 
 | ||
|  | 
 | ||
|  | /** create multiple segments and pass them to tcp_input in a wrong
 | ||
|  |  * order to see if ooseq-caching works correctly | ||
|  |  * FIN is received IN-SEQUENCE at the end */ | ||
|  | START_TEST(test_tcp_recv_ooseq_FIN_INSEQ) | ||
|  | { | ||
|  |   struct test_tcp_counters counters; | ||
|  |   struct tcp_pcb* pcb; | ||
|  |   struct pbuf *p_1_2, *p_4_8, *p_3_11, *p_2_12, *p_15_1, *p_15_1a, *pinseq, *pinseqFIN; | ||
|  |   char data[] = { | ||
|  |      1,  2,  3,  4, | ||
|  |      5,  6,  7,  8, | ||
|  |      9, 10, 11, 12, | ||
|  |     13, 14, 15, 16}; | ||
|  |   ip_addr_t remote_ip, local_ip; | ||
|  |   u16_t data_len; | ||
|  |   u16_t remote_port = 0x100, local_port = 0x101; | ||
|  |   struct netif netif; | ||
|  |   LWIP_UNUSED_ARG(_i); | ||
|  | 
 | ||
|  |   /* initialize local vars */ | ||
|  |   memset(&netif, 0, sizeof(netif)); | ||
|  |   IP4_ADDR(&local_ip, 192, 168, 1, 1); | ||
|  |   IP4_ADDR(&remote_ip, 192, 168, 1, 2); | ||
|  |   data_len = sizeof(data); | ||
|  |   /* initialize counter struct */ | ||
|  |   memset(&counters, 0, sizeof(counters)); | ||
|  |   counters.expected_data_len = data_len; | ||
|  |   counters.expected_data = data; | ||
|  | 
 | ||
|  |   /* create and initialize the pcb */ | ||
|  |   pcb = test_tcp_new_counters_pcb(&counters); | ||
|  |   EXPECT_RET(pcb != NULL); | ||
|  |   tcp_set_state(pcb, ESTABLISHED, &local_ip, &remote_ip, local_port, remote_port); | ||
|  | 
 | ||
|  |   /* create segments */ | ||
|  |   /* p1: 7 bytes - 2 before FIN */ | ||
|  |   /*     seqno: 1..2 */ | ||
|  |   p_1_2  = tcp_create_rx_segment(pcb, &data[1],  2, 1, 0, TCP_ACK); | ||
|  |   /* p2: 4 bytes before p1, including the first 4 bytes of p1 (partly duplicate) */ | ||
|  |   /*     seqno: 4..11 */ | ||
|  |   p_4_8  = tcp_create_rx_segment(pcb, &data[4],  8, 4, 0, TCP_ACK); | ||
|  |   /* p3: same as p2 but 2 bytes longer and one byte more at the front */ | ||
|  |   /*     seqno: 3..13 */ | ||
|  |   p_3_11 = tcp_create_rx_segment(pcb, &data[3], 11, 3, 0, TCP_ACK); | ||
|  |   /* p4: 13 bytes - 2 before FIN - should be ignored as contained in p1 and p3 */ | ||
|  |   /*     seqno: 2..13 */ | ||
|  |   p_2_12 = tcp_create_rx_segment(pcb, &data[2], 12, 2, 0, TCP_ACK); | ||
|  |   /* pinseq is the first segment that is held back to create ooseq! */ | ||
|  |   /*     seqno: 0..3 */ | ||
|  |   pinseq = tcp_create_rx_segment(pcb, &data[0],  4, 0, 0, TCP_ACK); | ||
|  |   /* p5: last byte before FIN */ | ||
|  |   /*     seqno: 15 */ | ||
|  |   p_15_1 = tcp_create_rx_segment(pcb, &data[15], 1, 15, 0, TCP_ACK); | ||
|  |   /* p6: same as p5, should be ignored */ | ||
|  |   p_15_1a= tcp_create_rx_segment(pcb, &data[15], 1, 15, 0, TCP_ACK); | ||
|  |   /* pinseqFIN: last 2 bytes plus FIN */ | ||
|  |   /*     only segment containing seqno 14 and FIN */ | ||
|  |   pinseqFIN = tcp_create_rx_segment(pcb,  &data[14], 2, 14, 0, TCP_ACK|TCP_FIN); | ||
|  |   EXPECT(pinseq != NULL); | ||
|  |   EXPECT(p_1_2 != NULL); | ||
|  |   EXPECT(p_4_8 != NULL); | ||
|  |   EXPECT(p_3_11 != NULL); | ||
|  |   EXPECT(p_2_12 != NULL); | ||
|  |   EXPECT(p_15_1 != NULL); | ||
|  |   EXPECT(p_15_1a != NULL); | ||
|  |   EXPECT(pinseqFIN != NULL); | ||
|  |   if ((pinseq != NULL) && (p_1_2 != NULL) && (p_4_8 != NULL) && (p_3_11 != NULL) && (p_2_12 != NULL) | ||
|  |     && (p_15_1 != NULL) && (p_15_1a != NULL) && (pinseqFIN != NULL)) { | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_1_2, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 2); | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_4_8, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 2); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 2); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 1) == 4); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 1) == 8); | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_3_11, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 2); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 2); | ||
|  |     /* p_3_11 has removed p_4_8 from ooseq */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 1) == 3); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 1) == 11); | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_2_12, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 2); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 1) == 2); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 1) == 12); | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(pinseq, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 1); | ||
|  |     EXPECT(counters.recved_bytes == 14); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     EXPECT(pcb->ooseq == NULL); | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_15_1, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 1); | ||
|  |     EXPECT(counters.recved_bytes == 14); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 15); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 1); | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p_15_1a, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 1); | ||
|  |     EXPECT(counters.recved_bytes == 14); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue: unchanged */ | ||
|  |     EXPECT_OOSEQ(tcp_oos_count(pcb) == 1); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_seqno(pcb, 0) == 15); | ||
|  |     EXPECT_OOSEQ(tcp_oos_seg_tcplen(pcb, 0) == 1); | ||
|  | 
 | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(pinseqFIN, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 1); | ||
|  |     EXPECT(counters.recv_calls == 2); | ||
|  |     EXPECT(counters.recved_bytes == data_len); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     EXPECT(pcb->ooseq == NULL); | ||
|  |   } | ||
|  | 
 | ||
|  |   /* make sure the pcb is freed */ | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 1); | ||
|  |   tcp_abort(pcb); | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 0); | ||
|  | } | ||
|  | END_TEST | ||
|  | 
 | ||
|  | static char data_full_wnd[TCP_WND]; | ||
|  | 
 | ||
|  | /** create multiple segments and pass them to tcp_input with the first segment missing
 | ||
|  |  * to simulate overruning the rxwin with ooseq queueing enabled */ | ||
|  | START_TEST(test_tcp_recv_ooseq_overrun_rxwin) | ||
|  | { | ||
|  | #if !TCP_OOSEQ_MAX_BYTES && !TCP_OOSEQ_MAX_PBUFS
 | ||
|  |   int i, k; | ||
|  |   struct test_tcp_counters counters; | ||
|  |   struct tcp_pcb* pcb; | ||
|  |   struct pbuf *pinseq, *p_ovr; | ||
|  |   ip_addr_t remote_ip, local_ip; | ||
|  |   u16_t remote_port = 0x100, local_port = 0x101; | ||
|  |   struct netif netif; | ||
|  |   int datalen = 0; | ||
|  |   int datalen2; | ||
|  | 
 | ||
|  |   for(i = 0; i < sizeof(data_full_wnd); i++) { | ||
|  |     data_full_wnd[i] = (char)i; | ||
|  |   } | ||
|  | 
 | ||
|  |   /* initialize local vars */ | ||
|  |   memset(&netif, 0, sizeof(netif)); | ||
|  |   IP4_ADDR(&local_ip, 192, 168, 1, 1); | ||
|  |   IP4_ADDR(&remote_ip, 192, 168, 1, 2); | ||
|  |   /* initialize counter struct */ | ||
|  |   memset(&counters, 0, sizeof(counters)); | ||
|  |   counters.expected_data_len = TCP_WND; | ||
|  |   counters.expected_data = data_full_wnd; | ||
|  | 
 | ||
|  |   /* create and initialize the pcb */ | ||
|  |   pcb = test_tcp_new_counters_pcb(&counters); | ||
|  |   EXPECT_RET(pcb != NULL); | ||
|  |   tcp_set_state(pcb, ESTABLISHED, &local_ip, &remote_ip, local_port, remote_port); | ||
|  |   pcb->rcv_nxt = 0x8000; | ||
|  | 
 | ||
|  |   /* create segments */ | ||
|  |   /* pinseq is sent as last segment! */ | ||
|  |   pinseq = tcp_create_rx_segment(pcb, &data_full_wnd[0],  TCP_MSS, 0, 0, TCP_ACK); | ||
|  | 
 | ||
|  |   for(i = TCP_MSS, k = 0; i < TCP_WND; i += TCP_MSS, k++) { | ||
|  |     int count, expected_datalen; | ||
|  |     struct pbuf *p = tcp_create_rx_segment(pcb, &data_full_wnd[TCP_MSS*(k+1)], | ||
|  |                                            TCP_MSS, TCP_MSS*(k+1), 0, TCP_ACK); | ||
|  |     EXPECT_RET(p != NULL); | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     count = tcp_oos_count(pcb); | ||
|  |     EXPECT_OOSEQ(count == k+1); | ||
|  |     datalen = tcp_oos_tcplen(pcb); | ||
|  |     if (i + TCP_MSS < TCP_WND) { | ||
|  |       expected_datalen = (k+1)*TCP_MSS; | ||
|  |     } else { | ||
|  |       expected_datalen = TCP_WND - TCP_MSS; | ||
|  |     } | ||
|  |     if (datalen != expected_datalen) { | ||
|  |       EXPECT_OOSEQ(datalen == expected_datalen); | ||
|  |     } | ||
|  |   } | ||
|  | 
 | ||
|  |   /* pass in one more segment, cleary overrunning the rxwin */ | ||
|  |   p_ovr = tcp_create_rx_segment(pcb, &data_full_wnd[TCP_MSS*(k+1)], TCP_MSS, TCP_MSS*(k+1), 0, TCP_ACK); | ||
|  |   EXPECT_RET(p_ovr != NULL); | ||
|  |   /* pass the segment to tcp_input */ | ||
|  |   test_tcp_input(p_ovr, &netif); | ||
|  |   /* check if counters are as expected */ | ||
|  |   EXPECT(counters.close_calls == 0); | ||
|  |   EXPECT(counters.recv_calls == 0); | ||
|  |   EXPECT(counters.recved_bytes == 0); | ||
|  |   EXPECT(counters.err_calls == 0); | ||
|  |   /* check ooseq queue */ | ||
|  |   EXPECT_OOSEQ(tcp_oos_count(pcb) == k); | ||
|  |   datalen2 = tcp_oos_tcplen(pcb); | ||
|  |   EXPECT_OOSEQ(datalen == datalen2); | ||
|  | 
 | ||
|  |   /* now pass inseq */ | ||
|  |   test_tcp_input(pinseq, &netif); | ||
|  |   EXPECT(pcb->ooseq == NULL); | ||
|  | 
 | ||
|  |   /* make sure the pcb is freed */ | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 1); | ||
|  |   tcp_abort(pcb); | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 0); | ||
|  | #endif /* !TCP_OOSEQ_MAX_BYTES && !TCP_OOSEQ_MAX_PBUFS */
 | ||
|  |   LWIP_UNUSED_ARG(_i); | ||
|  | } | ||
|  | END_TEST | ||
|  | 
 | ||
|  | START_TEST(test_tcp_recv_ooseq_max_bytes) | ||
|  | { | ||
|  | #if TCP_OOSEQ_MAX_BYTES && (TCP_OOSEQ_MAX_BYTES < (TCP_WND + 1)) && (PBUF_POOL_BUFSIZE >= (TCP_MSS + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))
 | ||
|  |   int i, k; | ||
|  |   struct test_tcp_counters counters; | ||
|  |   struct tcp_pcb* pcb; | ||
|  |   struct pbuf *p_ovr; | ||
|  |   ip_addr_t remote_ip, local_ip; | ||
|  |   u16_t remote_port = 0x100, local_port = 0x101; | ||
|  |   struct netif netif; | ||
|  |   int datalen = 0; | ||
|  |   int datalen2; | ||
|  | 
 | ||
|  |   for(i = 0; i < sizeof(data_full_wnd); i++) { | ||
|  |     data_full_wnd[i] = (char)i; | ||
|  |   } | ||
|  | 
 | ||
|  |   /* initialize local vars */ | ||
|  |   memset(&netif, 0, sizeof(netif)); | ||
|  |   IP4_ADDR(&local_ip, 192, 168, 1, 1); | ||
|  |   IP4_ADDR(&remote_ip, 192, 168, 1, 2); | ||
|  |   /* initialize counter struct */ | ||
|  |   memset(&counters, 0, sizeof(counters)); | ||
|  |   counters.expected_data_len = TCP_WND; | ||
|  |   counters.expected_data = data_full_wnd; | ||
|  | 
 | ||
|  |   /* create and initialize the pcb */ | ||
|  |   pcb = test_tcp_new_counters_pcb(&counters); | ||
|  |   EXPECT_RET(pcb != NULL); | ||
|  |   tcp_set_state(pcb, ESTABLISHED, &local_ip, &remote_ip, local_port, remote_port); | ||
|  |   pcb->rcv_nxt = 0x8000; | ||
|  | 
 | ||
|  |   /* don't 'recv' the first segment (1 byte) so that all other segments will be ooseq */ | ||
|  | 
 | ||
|  |   /* create segments and 'recv' them */ | ||
|  |   for(k = 1, i = 1; k < TCP_OOSEQ_MAX_BYTES; k += TCP_MSS, i++) { | ||
|  |     int count; | ||
|  |     struct pbuf *p = tcp_create_rx_segment(pcb, &data_full_wnd[k], | ||
|  |                                            TCP_MSS, k, 0, TCP_ACK); | ||
|  |     EXPECT_RET(p != NULL); | ||
|  |     EXPECT_RET(p->next == NULL); | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     count = tcp_oos_pbuf_count(pcb); | ||
|  |     EXPECT_OOSEQ(count == i); | ||
|  |     datalen = tcp_oos_tcplen(pcb); | ||
|  |     EXPECT_OOSEQ(datalen == (i * TCP_MSS)); | ||
|  |   } | ||
|  | 
 | ||
|  |   /* pass in one more segment, overrunning the limit */ | ||
|  |   p_ovr = tcp_create_rx_segment(pcb, &data_full_wnd[k+1], 1, k+1, 0, TCP_ACK); | ||
|  |   EXPECT_RET(p_ovr != NULL); | ||
|  |   /* pass the segment to tcp_input */ | ||
|  |   test_tcp_input(p_ovr, &netif); | ||
|  |   /* check if counters are as expected */ | ||
|  |   EXPECT(counters.close_calls == 0); | ||
|  |   EXPECT(counters.recv_calls == 0); | ||
|  |   EXPECT(counters.recved_bytes == 0); | ||
|  |   EXPECT(counters.err_calls == 0); | ||
|  |   /* check ooseq queue (ensure the new segment was not accepted) */ | ||
|  |   EXPECT_OOSEQ(tcp_oos_count(pcb) == (i-1)); | ||
|  |   datalen2 = tcp_oos_tcplen(pcb); | ||
|  |   EXPECT_OOSEQ(datalen2 == ((i-1) * TCP_MSS)); | ||
|  | 
 | ||
|  |   /* make sure the pcb is freed */ | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 1); | ||
|  |   tcp_abort(pcb); | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 0); | ||
|  | #endif /* TCP_OOSEQ_MAX_BYTES && (TCP_OOSEQ_MAX_BYTES < (TCP_WND + 1)) && (PBUF_POOL_BUFSIZE >= (TCP_MSS + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)) */
 | ||
|  |   LWIP_UNUSED_ARG(_i); | ||
|  | } | ||
|  | END_TEST | ||
|  | 
 | ||
|  | START_TEST(test_tcp_recv_ooseq_max_pbufs) | ||
|  | { | ||
|  | #if TCP_OOSEQ_MAX_PBUFS && (TCP_OOSEQ_MAX_PBUFS < ((TCP_WND / TCP_MSS) + 1)) && (PBUF_POOL_BUFSIZE >= (TCP_MSS + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))
 | ||
|  |   int i; | ||
|  |   struct test_tcp_counters counters; | ||
|  |   struct tcp_pcb* pcb; | ||
|  |   struct pbuf *p_ovr; | ||
|  |   ip_addr_t remote_ip, local_ip; | ||
|  |   u16_t remote_port = 0x100, local_port = 0x101; | ||
|  |   struct netif netif; | ||
|  |   int datalen = 0; | ||
|  |   int datalen2; | ||
|  | 
 | ||
|  |   for(i = 0; i < sizeof(data_full_wnd); i++) { | ||
|  |     data_full_wnd[i] = (char)i; | ||
|  |   } | ||
|  | 
 | ||
|  |   /* initialize local vars */ | ||
|  |   memset(&netif, 0, sizeof(netif)); | ||
|  |   IP4_ADDR(&local_ip, 192, 168, 1, 1); | ||
|  |   IP4_ADDR(&remote_ip, 192, 168, 1, 2); | ||
|  |   /* initialize counter struct */ | ||
|  |   memset(&counters, 0, sizeof(counters)); | ||
|  |   counters.expected_data_len = TCP_WND; | ||
|  |   counters.expected_data = data_full_wnd; | ||
|  | 
 | ||
|  |   /* create and initialize the pcb */ | ||
|  |   pcb = test_tcp_new_counters_pcb(&counters); | ||
|  |   EXPECT_RET(pcb != NULL); | ||
|  |   tcp_set_state(pcb, ESTABLISHED, &local_ip, &remote_ip, local_port, remote_port); | ||
|  |   pcb->rcv_nxt = 0x8000; | ||
|  | 
 | ||
|  |   /* don't 'recv' the first segment (1 byte) so that all other segments will be ooseq */ | ||
|  | 
 | ||
|  |   /* create segments and 'recv' them */ | ||
|  |   for(i = 1; i <= TCP_OOSEQ_MAX_PBUFS; i++) { | ||
|  |     int count; | ||
|  |     struct pbuf *p = tcp_create_rx_segment(pcb, &data_full_wnd[i], | ||
|  |                                            1, i, 0, TCP_ACK); | ||
|  |     EXPECT_RET(p != NULL); | ||
|  |     EXPECT_RET(p->next == NULL); | ||
|  |     /* pass the segment to tcp_input */ | ||
|  |     test_tcp_input(p, &netif); | ||
|  |     /* check if counters are as expected */ | ||
|  |     EXPECT(counters.close_calls == 0); | ||
|  |     EXPECT(counters.recv_calls == 0); | ||
|  |     EXPECT(counters.recved_bytes == 0); | ||
|  |     EXPECT(counters.err_calls == 0); | ||
|  |     /* check ooseq queue */ | ||
|  |     count = tcp_oos_pbuf_count(pcb); | ||
|  |     EXPECT_OOSEQ(count == i); | ||
|  |     datalen = tcp_oos_tcplen(pcb); | ||
|  |     EXPECT_OOSEQ(datalen == i); | ||
|  |   } | ||
|  | 
 | ||
|  |   /* pass in one more segment, overrunning the limit */ | ||
|  |   p_ovr = tcp_create_rx_segment(pcb, &data_full_wnd[i+1], 1, i+1, 0, TCP_ACK); | ||
|  |   EXPECT_RET(p_ovr != NULL); | ||
|  |   /* pass the segment to tcp_input */ | ||
|  |   test_tcp_input(p_ovr, &netif); | ||
|  |   /* check if counters are as expected */ | ||
|  |   EXPECT(counters.close_calls == 0); | ||
|  |   EXPECT(counters.recv_calls == 0); | ||
|  |   EXPECT(counters.recved_bytes == 0); | ||
|  |   EXPECT(counters.err_calls == 0); | ||
|  |   /* check ooseq queue (ensure the new segment was not accepted) */ | ||
|  |   EXPECT_OOSEQ(tcp_oos_count(pcb) == (i-1)); | ||
|  |   datalen2 = tcp_oos_tcplen(pcb); | ||
|  |   EXPECT_OOSEQ(datalen2 == (i-1)); | ||
|  | 
 | ||
|  |   /* make sure the pcb is freed */ | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 1); | ||
|  |   tcp_abort(pcb); | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 0); | ||
|  | #endif /* TCP_OOSEQ_MAX_PBUFS && (TCP_OOSEQ_MAX_BYTES < (TCP_WND + 1)) && (PBUF_POOL_BUFSIZE >= (TCP_MSS + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)) */
 | ||
|  |   LWIP_UNUSED_ARG(_i); | ||
|  | } | ||
|  | END_TEST | ||
|  | 
 | ||
|  | static void | ||
|  | check_rx_counters(struct tcp_pcb *pcb, struct test_tcp_counters *counters, u32_t exp_close_calls, u32_t exp_rx_calls, | ||
|  |                   u32_t exp_rx_bytes, u32_t exp_err_calls, int exp_oos_count, int exp_oos_len) | ||
|  | { | ||
|  |   int oos_len; | ||
|  |   EXPECT(counters->close_calls == exp_close_calls); | ||
|  |   EXPECT(counters->recv_calls == exp_rx_calls); | ||
|  |   EXPECT(counters->recved_bytes == exp_rx_bytes); | ||
|  |   EXPECT(counters->err_calls == exp_err_calls); | ||
|  |   /* check that pbuf is queued in ooseq */ | ||
|  |   EXPECT_OOSEQ(tcp_oos_count(pcb) == exp_oos_count); | ||
|  |   oos_len = tcp_oos_tcplen(pcb); | ||
|  |   EXPECT_OOSEQ(exp_oos_len == oos_len); | ||
|  | } | ||
|  | 
 | ||
|  | /* this test uses 4 packets:
 | ||
|  |  * - data (len=TCP_MSS) | ||
|  |  * - FIN | ||
|  |  * - data after FIN (len=1) (invalid) | ||
|  |  * - 2nd FIN (invalid) | ||
|  |  * | ||
|  |  * the parameter 'delay_packet' is a bitmask that choses which on these packets is ooseq | ||
|  |  */ | ||
|  | static void test_tcp_recv_ooseq_double_FINs(int delay_packet) | ||
|  | { | ||
|  |   int i, k; | ||
|  |   struct test_tcp_counters counters; | ||
|  |   struct tcp_pcb* pcb; | ||
|  |   struct pbuf *p_normal_fin, *p_data_after_fin, *p, *p_2nd_fin_ooseq; | ||
|  |   ip_addr_t remote_ip, local_ip; | ||
|  |   u16_t remote_port = 0x100, local_port = 0x101; | ||
|  |   struct netif netif; | ||
|  |   u32_t exp_rx_calls = 0, exp_rx_bytes = 0, exp_close_calls = 0, exp_oos_pbufs = 0, exp_oos_tcplen = 0; | ||
|  |   int first_dropped = 0xff; | ||
|  |   int last_dropped = 0; | ||
|  | 
 | ||
|  |   for(i = 0; i < sizeof(data_full_wnd); i++) { | ||
|  |     data_full_wnd[i] = (char)i; | ||
|  |   } | ||
|  | 
 | ||
|  |   /* initialize local vars */ | ||
|  |   memset(&netif, 0, sizeof(netif)); | ||
|  |   IP4_ADDR(&local_ip, 192, 168, 1, 1); | ||
|  |   IP4_ADDR(&remote_ip, 192, 168, 1, 2); | ||
|  |   /* initialize counter struct */ | ||
|  |   memset(&counters, 0, sizeof(counters)); | ||
|  |   counters.expected_data_len = TCP_WND; | ||
|  |   counters.expected_data = data_full_wnd; | ||
|  | 
 | ||
|  |   /* create and initialize the pcb */ | ||
|  |   pcb = test_tcp_new_counters_pcb(&counters); | ||
|  |   EXPECT_RET(pcb != NULL); | ||
|  |   tcp_set_state(pcb, ESTABLISHED, &local_ip, &remote_ip, local_port, remote_port); | ||
|  |   pcb->rcv_nxt = 0x8000; | ||
|  | 
 | ||
|  |   /* create segments */ | ||
|  |   p = tcp_create_rx_segment(pcb, &data_full_wnd[0], TCP_MSS, 0, 0, TCP_ACK); | ||
|  |   p_normal_fin = tcp_create_rx_segment(pcb, NULL, 0, TCP_MSS, 0, TCP_ACK|TCP_FIN); | ||
|  |   k = 1; | ||
|  |   p_data_after_fin = tcp_create_rx_segment(pcb, &data_full_wnd[TCP_MSS+1], k, TCP_MSS+1, 0, TCP_ACK); | ||
|  |   p_2nd_fin_ooseq = tcp_create_rx_segment(pcb, NULL, 0, TCP_MSS+1+k, 0, TCP_ACK|TCP_FIN); | ||
|  | 
 | ||
|  |   if(delay_packet & 1) { | ||
|  |     /* drop normal data */ | ||
|  |     first_dropped = 1; | ||
|  |     last_dropped = 1; | ||
|  |   } else { | ||
|  |     /* send normal data */ | ||
|  |     test_tcp_input(p, &netif); | ||
|  |     exp_rx_calls++; | ||
|  |     exp_rx_bytes += TCP_MSS; | ||
|  |   } | ||
|  |   /* check if counters are as expected */ | ||
|  |   check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); | ||
|  | 
 | ||
|  |   if(delay_packet & 2) { | ||
|  |     /* drop FIN */ | ||
|  |     if(first_dropped > 2) { | ||
|  |       first_dropped = 2; | ||
|  |     } | ||
|  |     last_dropped = 2; | ||
|  |   } else { | ||
|  |     /* send FIN */ | ||
|  |     test_tcp_input(p_normal_fin, &netif); | ||
|  |     if (first_dropped < 2) { | ||
|  |       /* already dropped packets, this one is ooseq */ | ||
|  |       exp_oos_pbufs++; | ||
|  |       exp_oos_tcplen++; | ||
|  |     } else { | ||
|  |       /* inseq */ | ||
|  |       exp_close_calls++; | ||
|  |     } | ||
|  |   } | ||
|  |   /* check if counters are as expected */ | ||
|  |   check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); | ||
|  | 
 | ||
|  |   if(delay_packet & 4) { | ||
|  |     /* drop data-after-FIN */ | ||
|  |     if(first_dropped > 3) { | ||
|  |       first_dropped = 3; | ||
|  |     } | ||
|  |     last_dropped = 3; | ||
|  |   } else { | ||
|  |     /* send data-after-FIN */ | ||
|  |     test_tcp_input(p_data_after_fin, &netif); | ||
|  |     if (first_dropped < 3) { | ||
|  |       /* already dropped packets, this one is ooseq */ | ||
|  |       if (delay_packet & 2) { | ||
|  |         /* correct FIN was ooseq */ | ||
|  |         exp_oos_pbufs++; | ||
|  |         exp_oos_tcplen += k; | ||
|  |       } | ||
|  |     } else { | ||
|  |       /* inseq: no change */ | ||
|  |     } | ||
|  |   } | ||
|  |   /* check if counters are as expected */ | ||
|  |   check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); | ||
|  | 
 | ||
|  |   if(delay_packet & 8) { | ||
|  |     /* drop 2nd-FIN */ | ||
|  |     if(first_dropped > 4) { | ||
|  |       first_dropped = 4; | ||
|  |     } | ||
|  |     last_dropped = 4; | ||
|  |   } else { | ||
|  |     /* send 2nd-FIN */ | ||
|  |     test_tcp_input(p_2nd_fin_ooseq, &netif); | ||
|  |     if (first_dropped < 3) { | ||
|  |       /* already dropped packets, this one is ooseq */ | ||
|  |       if (delay_packet & 2) { | ||
|  |         /* correct FIN was ooseq */ | ||
|  |         exp_oos_pbufs++; | ||
|  |         exp_oos_tcplen++; | ||
|  |       } | ||
|  |     } else { | ||
|  |       /* inseq: no change */ | ||
|  |     } | ||
|  |   } | ||
|  |   /* check if counters are as expected */ | ||
|  |   check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); | ||
|  | 
 | ||
|  |   if(delay_packet & 1) { | ||
|  |     /* dropped normal data before */ | ||
|  |     test_tcp_input(p, &netif); | ||
|  |     exp_rx_calls++; | ||
|  |     exp_rx_bytes += TCP_MSS; | ||
|  |     if((delay_packet & 2) == 0) { | ||
|  |       /* normal FIN was NOT delayed */ | ||
|  |       exp_close_calls++; | ||
|  |       exp_oos_pbufs = exp_oos_tcplen = 0; | ||
|  |     } | ||
|  |   } | ||
|  |   /* check if counters are as expected */ | ||
|  |   check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); | ||
|  | 
 | ||
|  |   if(delay_packet & 2) { | ||
|  |     /* dropped normal FIN before */ | ||
|  |     test_tcp_input(p_normal_fin, &netif); | ||
|  |     exp_close_calls++; | ||
|  |     exp_oos_pbufs = exp_oos_tcplen = 0; | ||
|  |   } | ||
|  |   /* check if counters are as expected */ | ||
|  |   check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); | ||
|  | 
 | ||
|  |   if(delay_packet & 4) { | ||
|  |     /* dropped data-after-FIN before */ | ||
|  |     test_tcp_input(p_data_after_fin, &netif); | ||
|  |   } | ||
|  |   /* check if counters are as expected */ | ||
|  |   check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); | ||
|  | 
 | ||
|  |   if(delay_packet & 8) { | ||
|  |     /* dropped 2nd-FIN before */ | ||
|  |     test_tcp_input(p_2nd_fin_ooseq, &netif); | ||
|  |   } | ||
|  |   /* check if counters are as expected */ | ||
|  |   check_rx_counters(pcb, &counters, exp_close_calls, exp_rx_calls, exp_rx_bytes, 0, exp_oos_pbufs, exp_oos_tcplen); | ||
|  | 
 | ||
|  |   /* check that ooseq data has been dumped */ | ||
|  |   EXPECT(pcb->ooseq == NULL); | ||
|  | 
 | ||
|  |   /* make sure the pcb is freed */ | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 1); | ||
|  |   tcp_abort(pcb); | ||
|  |   EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 0); | ||
|  | } | ||
|  | 
 | ||
|  | /** create multiple segments and pass them to tcp_input with the first segment missing
 | ||
|  |  * to simulate overruning the rxwin with ooseq queueing enabled */ | ||
|  | #define FIN_TEST(name, num) \
 | ||
|  |   START_TEST(name) \ | ||
|  |   { \ | ||
|  |     LWIP_UNUSED_ARG(_i); \ | ||
|  |     test_tcp_recv_ooseq_double_FINs(num); \ | ||
|  |   } \ | ||
|  |   END_TEST | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_0, 0) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_1, 1) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_2, 2) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_3, 3) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_4, 4) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_5, 5) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_6, 6) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_7, 7) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_8, 8) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_9, 9) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_10, 10) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_11, 11) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_12, 12) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_13, 13) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_14, 14) | ||
|  | FIN_TEST(test_tcp_recv_ooseq_double_FIN_15, 15) | ||
|  | 
 | ||
|  | 
 | ||
|  | /** Create the suite including all tests for this module */ | ||
|  | Suite * | ||
|  | tcp_oos_suite(void) | ||
|  | { | ||
|  |   TFun tests[] = { | ||
|  |     test_tcp_recv_ooseq_FIN_OOSEQ, | ||
|  |     test_tcp_recv_ooseq_FIN_INSEQ, | ||
|  |     test_tcp_recv_ooseq_overrun_rxwin, | ||
|  |     test_tcp_recv_ooseq_max_bytes, | ||
|  |     test_tcp_recv_ooseq_max_pbufs, | ||
|  |     test_tcp_recv_ooseq_double_FIN_0, | ||
|  |     test_tcp_recv_ooseq_double_FIN_1, | ||
|  |     test_tcp_recv_ooseq_double_FIN_2, | ||
|  |     test_tcp_recv_ooseq_double_FIN_3, | ||
|  |     test_tcp_recv_ooseq_double_FIN_4, | ||
|  |     test_tcp_recv_ooseq_double_FIN_5, | ||
|  |     test_tcp_recv_ooseq_double_FIN_6, | ||
|  |     test_tcp_recv_ooseq_double_FIN_7, | ||
|  |     test_tcp_recv_ooseq_double_FIN_8, | ||
|  |     test_tcp_recv_ooseq_double_FIN_9, | ||
|  |     test_tcp_recv_ooseq_double_FIN_10, | ||
|  |     test_tcp_recv_ooseq_double_FIN_11, | ||
|  |     test_tcp_recv_ooseq_double_FIN_12, | ||
|  |     test_tcp_recv_ooseq_double_FIN_13, | ||
|  |     test_tcp_recv_ooseq_double_FIN_14, | ||
|  |     test_tcp_recv_ooseq_double_FIN_15 | ||
|  |   }; | ||
|  |   return create_suite("TCP_OOS", tests, sizeof(tests)/sizeof(TFun), tcp_oos_setup, tcp_oos_teardown); | ||
|  | } |