32 #ifndef __LWIP_TCP_IMPL_H__ 33 #define __LWIP_TCP_IMPL_H__ 84 #define tcp_do_output_nagle(tpcb) ((((tpcb)->unacked == NULL) || \ 85 ((tpcb)->flags & (TF_NODELAY | TF_INFR)) || \ 86 (((tpcb)->unsent != NULL) && (((tpcb)->unsent->next != NULL) || \ 87 ((tpcb)->unsent->len >= (tpcb)->mss))) \ 89 #define tcp_output_nagle(tpcb) (tcp_do_output_nagle(tpcb) ? tcp_output(tpcb) : ERR_OK) 92 #define TCP_SEQ_LT(a,b) ((s32_t)((a)-(b)) < 0) 93 #define TCP_SEQ_LEQ(a,b) ((s32_t)((a)-(b)) <= 0) 94 #define TCP_SEQ_GT(a,b) ((s32_t)((a)-(b)) > 0) 95 #define TCP_SEQ_GEQ(a,b) ((s32_t)((a)-(b)) >= 0) 98 #define TCP_SEQ_BETWEEN(a,b,c) ((c)-(b) >= (a)-(b)) 100 #define TCP_SEQ_BETWEEN(a,b,c) (TCP_SEQ_GEQ(a,b) && TCP_SEQ_LEQ(a,c)) 101 #define TCP_FIN 0x01U 102 #define TCP_SYN 0x02U 103 #define TCP_RST 0x04U 104 #define TCP_PSH 0x08U 105 #define TCP_ACK 0x10U 106 #define TCP_URG 0x20U 107 #define TCP_ECE 0x40U 108 #define TCP_CWR 0x80U 110 #define TCP_FLAGS 0x3fU 115 #ifndef TCP_TMR_INTERVAL 116 #define TCP_TMR_INTERVAL 125 119 #ifndef TCP_FAST_INTERVAL 120 #define TCP_FAST_INTERVAL TCP_TMR_INTERVAL 123 #ifndef TCP_SLOW_INTERVAL 124 #define TCP_SLOW_INTERVAL (2*TCP_TMR_INTERVAL) 127 #define TCP_FIN_WAIT_TIMEOUT 20000 128 #define TCP_SYN_RCVD_TIMEOUT 20000 130 #define TCP_OOSEQ_TIMEOUT 6U 133 #define TCP_MSL 60000UL 137 #ifndef TCP_KEEPIDLE_DEFAULT 138 #define TCP_KEEPIDLE_DEFAULT 120000UL 141 #ifndef TCP_KEEPINTVL_DEFAULT 142 #define TCP_KEEPINTVL_DEFAULT 10000UL 145 #ifndef TCP_KEEPCNT_DEFAULT 146 #define TCP_KEEPCNT_DEFAULT 9U 149 #define TCP_MAXIDLE TCP_KEEPCNT_DEFAULT * TCP_KEEPINTVL_DEFAULT 154 #ifdef PACK_STRUCT_USE_INCLUDES 155 # include "arch/bpstruct.h" 169 #ifdef PACK_STRUCT_USE_INCLUDES 170 # include "arch/epstruct.h" 173 #define TCPH_OFFSET(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) >> 8) 174 #define TCPH_HDRLEN(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) >> 12) 175 #define TCPH_FLAGS(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) & TCP_FLAGS) 177 #define TCPH_OFFSET_SET(phdr, offset) (phdr)->_hdrlen_rsvd_flags = htons(((offset) << 8) | TCPH_FLAGS(phdr)) 178 #define TCPH_HDRLEN_SET(phdr, len) (phdr)->_hdrlen_rsvd_flags = htons(((len) << 12) | TCPH_FLAGS(phdr)) 179 #define TCPH_FLAGS_SET(phdr, flags) (phdr)->_hdrlen_rsvd_flags = (((phdr)->_hdrlen_rsvd_flags & PP_HTONS((u16_t)(~(u16_t)(TCP_FLAGS)))) | htons(flags)) 180 #define TCPH_HDRLEN_FLAGS_SET(phdr, len, flags) (phdr)->_hdrlen_rsvd_flags = htons(((len) << 12) | (flags)) 182 #define TCPH_SET_FLAG(phdr, flags ) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags | htons(flags)) 183 #define TCPH_UNSET_FLAG(phdr, flags) (phdr)->_hdrlen_rsvd_flags = htons(ntohs((phdr)->_hdrlen_rsvd_flags) | (TCPH_FLAGS(phdr) & ~(flags)) ) 185 #define TCP_TCPLEN(seg) ((seg)->len + ((TCPH_FLAGS((seg)->tcphdr) & (TCP_FIN | TCP_SYN)) != 0)) 189 #define TF_RESET (u8_t)0x08U 190 #define TF_CLOSED (u8_t)0x10U 191 #define TF_GOT_FIN (u8_t)0x20U 196 #define TCP_EVENT_ACCEPT(pcb,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ 197 LWIP_EVENT_ACCEPT, NULL, 0, err) 198 #define TCP_EVENT_SENT(pcb,space,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ 199 LWIP_EVENT_SENT, NULL, space, ERR_OK) 200 #define TCP_EVENT_RECV(pcb,p,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ 201 LWIP_EVENT_RECV, (p), 0, (err)) 202 #define TCP_EVENT_CLOSED(pcb,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ 203 LWIP_EVENT_RECV, NULL, 0, ERR_OK) 204 #define TCP_EVENT_CONNECTED(pcb,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ 205 LWIP_EVENT_CONNECTED, NULL, 0, (err)) 206 #define TCP_EVENT_POLL(pcb,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ 207 LWIP_EVENT_POLL, NULL, 0, ERR_OK) 208 #define TCP_EVENT_ERR(errf,arg,err) lwip_tcp_event((arg), NULL, \ 209 LWIP_EVENT_ERR, NULL, 0, (err)) 213 #define TCP_EVENT_ACCEPT(pcb,err,ret) \ 215 if((pcb)->accept != NULL) \ 216 (ret) = (pcb)->accept((pcb)->callback_arg,(pcb),(err)); \ 217 else (ret) = ERR_ARG; \ 220 #define TCP_EVENT_SENT(pcb,space,ret) \ 222 if((pcb)->sent != NULL) \ 223 (ret) = (pcb)->sent((pcb)->callback_arg,(pcb),(space)); \ 224 else (ret) = ERR_OK; \ 227 #define TCP_EVENT_RECV(pcb,p,err,ret) \ 229 if((pcb)->recv != NULL) { \ 230 (ret) = (pcb)->recv((pcb)->callback_arg,(pcb),(p),(err));\ 232 (ret) = tcp_recv_null(NULL, (pcb), (p), (err)); \ 236 #define TCP_EVENT_CLOSED(pcb,ret) \ 238 if(((pcb)->recv != NULL)) { \ 239 (ret) = (pcb)->recv((pcb)->callback_arg,(pcb),NULL,ERR_OK);\ 245 #define TCP_EVENT_CONNECTED(pcb,err,ret) \ 247 if((pcb)->connected != NULL) \ 248 (ret) = (pcb)->connected((pcb)->callback_arg,(pcb),(err)); \ 249 else (ret) = ERR_OK; \ 252 #define TCP_EVENT_POLL(pcb,ret) \ 254 if((pcb)->poll != NULL) \ 255 (ret) = (pcb)->poll((pcb)->callback_arg,(pcb)); \ 256 else (ret) = ERR_OK; \ 259 #define TCP_EVENT_ERR(errf,arg,err) \ 262 (errf)((arg),(err)); \ 268 #if TCP_OVERSIZE && defined(LWIP_DEBUG) 269 #define TCP_OVERSIZE_DBGCHECK 1 271 #define TCP_OVERSIZE_DBGCHECK 0 275 #define TCP_CHECKSUM_ON_COPY (LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_TCP) 279 struct tcp_seg *next;
283 #if TCP_OVERSIZE_DBGCHECK 288 #if TCP_CHECKSUM_ON_COPY 293 #define TF_SEG_OPTS_MSS (u8_t)0x01U 294 #define TF_SEG_OPTS_TS (u8_t)0x02U 295 #define TF_SEG_DATA_CHECKSUMMED (u8_t)0x04U 297 struct tcp_hdr *tcphdr;
300 #define LWIP_TCP_OPT_LENGTH(flags) \ 301 (flags & TF_SEG_OPTS_MSS ? 4 : 0) + \ 302 (flags & TF_SEG_OPTS_TS ? 12 : 0) 305 #define TCP_BUILD_MSS_OPTION(x) (x) = PP_HTONL(((u32_t)2 << 24) | \ 307 (((u32_t)TCP_MSS / 256) << 8) | \ 311 extern struct tcp_pcb *tcp_input_pcb;
312 extern u32_t tcp_ticks;
315 union tcp_listen_pcbs_t {
316 struct tcp_pcb_listen *listen_pcbs;
317 struct tcp_pcb *pcbs;
319 extern struct tcp_pcb *tcp_bound_pcbs;
320 extern union tcp_listen_pcbs_t tcp_listen_pcbs;
321 extern struct tcp_pcb *tcp_active_pcbs;
324 extern struct tcp_pcb *tcp_tw_pcbs;
326 extern struct tcp_pcb *tcp_tmp_pcb;
336 #ifndef TCP_DEBUG_PCB_LISTS 337 #define TCP_DEBUG_PCB_LISTS 0 339 #if TCP_DEBUG_PCB_LISTS 340 #define TCP_REG(pcbs, npcb) do {\ 341 LWIP_DEBUGF(TCP_DEBUG, ("TCP_REG %p local port %d\n", (npcb), (npcb)->local_port)); \ 342 for(tcp_tmp_pcb = *(pcbs); \ 343 tcp_tmp_pcb != NULL; \ 344 tcp_tmp_pcb = tcp_tmp_pcb->next) { \ 345 LWIP_ASSERT("TCP_REG: already registered\n", tcp_tmp_pcb != (npcb)); \ 347 LWIP_ASSERT("TCP_REG: pcb->state != CLOSED", ((pcbs) == &tcp_bound_pcbs) || ((npcb)->state != CLOSED)); \ 348 (npcb)->next = *(pcbs); \ 349 LWIP_ASSERT("TCP_REG: npcb->next != npcb", (npcb)->next != (npcb)); \ 351 LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \ 352 tcp_timer_needed(); \ 354 #define TCP_RMV(pcbs, npcb) do { \ 355 LWIP_ASSERT("TCP_RMV: pcbs != NULL", *(pcbs) != NULL); \ 356 LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removing %p from %p\n", (npcb), *(pcbs))); \ 357 if(*(pcbs) == (npcb)) { \ 358 *(pcbs) = (*pcbs)->next; \ 359 } else for(tcp_tmp_pcb = *(pcbs); tcp_tmp_pcb != NULL; tcp_tmp_pcb = tcp_tmp_pcb->next) { \ 360 if(tcp_tmp_pcb->next == (npcb)) { \ 361 tcp_tmp_pcb->next = (npcb)->next; \ 365 (npcb)->next = NULL; \ 366 LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \ 367 LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removed %p from %p\n", (npcb), *(pcbs))); \ 372 #define TCP_REG(pcbs, npcb) \ 374 (npcb)->next = *pcbs; \ 376 tcp_timer_needed(); \ 379 #define TCP_RMV(pcbs, npcb) \ 381 if(*(pcbs) == (npcb)) { \ 382 (*(pcbs)) = (*pcbs)->next; \ 385 for(tcp_tmp_pcb = *pcbs; \ 386 tcp_tmp_pcb != NULL; \ 387 tcp_tmp_pcb = tcp_tmp_pcb->next) { \ 388 if(tcp_tmp_pcb->next == (npcb)) { \ 389 tcp_tmp_pcb->next = (npcb)->next; \ 394 (npcb)->next = NULL; \ 403 void tcp_pcb_remove(
struct tcp_pcb **pcblist,
struct tcp_pcb *pcb)
ICACHE_FLASH_ATTR;
409 #define tcp_ack(pcb) \ 411 if((pcb)->flags & TF_ACK_DELAY) { \ 412 (pcb)->flags &= ~TF_ACK_DELAY; \ 413 (pcb)->flags |= TF_ACK_NOW; \ 416 (pcb)->flags |= TF_ACK_DELAY; \ 420 #define tcp_ack_now(pcb) \ 422 (pcb)->flags |= TF_ACK_NOW; \ 439 #if TCP_CALCULATE_EFF_SEND_MSS 443 #if LWIP_CALLBACK_API 447 #if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG 454 # define tcp_debug_print(tcphdr) 455 # define tcp_debug_print_flags(flags) 456 # define tcp_debug_print_state(s) 457 # define tcp_debug_print_pcbs() 458 # define tcp_pcbs_sane() 1
void tcp_timer_needed(void)
#define ICACHE_FLASH_ATTR
#define PACK_STRUCT_STRUCT
typedefPACK_STRUCT_END struct ip_addr ip_addr_t
#define PACK_STRUCT_BEGIN
#define PACK_STRUCT_FIELD(x)