17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 2366ac517eSjk115741 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate * 267c478bd9Sstevel@tonic-gate * socket.c, Code implementing a simple socket interface. 277c478bd9Sstevel@tonic-gate */ 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate #include <sys/types.h> 327c478bd9Sstevel@tonic-gate #include "socket_impl.h" 337c478bd9Sstevel@tonic-gate #include <sys/isa_defs.h> 347c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h> 357c478bd9Sstevel@tonic-gate #include <sys/bootconf.h> 367c478bd9Sstevel@tonic-gate #include <sys/socket.h> 377c478bd9Sstevel@tonic-gate #include <netinet/in.h> 387c478bd9Sstevel@tonic-gate #include <netinet/ip.h> 397c478bd9Sstevel@tonic-gate #include <netinet/tcp.h> 407c478bd9Sstevel@tonic-gate #include <sys/uio.h> 417c478bd9Sstevel@tonic-gate #include <sys/salib.h> 427c478bd9Sstevel@tonic-gate #include "socket_inet.h" 437c478bd9Sstevel@tonic-gate #include "ipv4.h" 447c478bd9Sstevel@tonic-gate #include "ipv4_impl.h" 457c478bd9Sstevel@tonic-gate #include "udp_inet.h" 467c478bd9Sstevel@tonic-gate #include "tcp_inet.h" 477c478bd9Sstevel@tonic-gate #include "mac.h" 487c478bd9Sstevel@tonic-gate #include "mac_impl.h" 497c478bd9Sstevel@tonic-gate #include <sys/promif.h> 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate struct inetboot_socket sockets[MAXSOCKET] = { 0 }; 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate /* Default send and receive socket buffer size */ 547c478bd9Sstevel@tonic-gate #define SO_DEF_SNDBUF 48*1024 557c478bd9Sstevel@tonic-gate #define SO_DEF_RCVBUF 48*1024 567c478bd9Sstevel@tonic-gate 577c478bd9Sstevel@tonic-gate /* Default max socket buffer size */ 587c478bd9Sstevel@tonic-gate #define SO_MAX_BUF 4*1024*1024 597c478bd9Sstevel@tonic-gate 607c478bd9Sstevel@tonic-gate static ssize_t dgram_sendto(int, const void *, size_t, int, 617c478bd9Sstevel@tonic-gate const struct sockaddr *, int); 627c478bd9Sstevel@tonic-gate static ssize_t stream_sendto(int, const void *, size_t, int); 637c478bd9Sstevel@tonic-gate static int bind_check(int, const struct sockaddr *); 647c478bd9Sstevel@tonic-gate static int quickbind(int); 657c478bd9Sstevel@tonic-gate 667c478bd9Sstevel@tonic-gate /* Check the validity of a fd and return the socket index of that fd. */ 677c478bd9Sstevel@tonic-gate int 687c478bd9Sstevel@tonic-gate so_check_fd(int fd, int *errno) 697c478bd9Sstevel@tonic-gate { 707c478bd9Sstevel@tonic-gate int i; 717c478bd9Sstevel@tonic-gate 727c478bd9Sstevel@tonic-gate i = FD_TO_SOCKET(fd); 737c478bd9Sstevel@tonic-gate if (i < 0 || i >= MAXSOCKET) { 747c478bd9Sstevel@tonic-gate *errno = ENOTSOCK; 757c478bd9Sstevel@tonic-gate return (-1); 767c478bd9Sstevel@tonic-gate } 777c478bd9Sstevel@tonic-gate if (sockets[i].type == INETBOOT_UNUSED) { 787c478bd9Sstevel@tonic-gate *errno = ENOTSOCK; 797c478bd9Sstevel@tonic-gate return (-1); 807c478bd9Sstevel@tonic-gate } 817c478bd9Sstevel@tonic-gate return (i); 827c478bd9Sstevel@tonic-gate } 837c478bd9Sstevel@tonic-gate 847c478bd9Sstevel@tonic-gate /* 857c478bd9Sstevel@tonic-gate * Create an endpoint for network communication. Returns a descriptor. 867c478bd9Sstevel@tonic-gate * 877c478bd9Sstevel@tonic-gate * Notes: 887c478bd9Sstevel@tonic-gate * Only PF_INET communication domains are supported. Within 897c478bd9Sstevel@tonic-gate * this domain, only SOCK_RAW, SOCK_DGRAM and SOCK_STREAM types are 907c478bd9Sstevel@tonic-gate * supported. 917c478bd9Sstevel@tonic-gate */ 927c478bd9Sstevel@tonic-gate int 937c478bd9Sstevel@tonic-gate socket(int domain, int type, int protocol) 947c478bd9Sstevel@tonic-gate { 957c478bd9Sstevel@tonic-gate static int sock_initialized; 967c478bd9Sstevel@tonic-gate int i; 977c478bd9Sstevel@tonic-gate 987c478bd9Sstevel@tonic-gate errno = 0; 997c478bd9Sstevel@tonic-gate 1007c478bd9Sstevel@tonic-gate if (!sock_initialized) { 1017c478bd9Sstevel@tonic-gate for (i = 0; i < MAXSOCKET; i++) 1027c478bd9Sstevel@tonic-gate sockets[i].type = INETBOOT_UNUSED; 1037c478bd9Sstevel@tonic-gate sock_initialized = B_TRUE; 1047c478bd9Sstevel@tonic-gate } 1057c478bd9Sstevel@tonic-gate if (domain != AF_INET) { 1067c478bd9Sstevel@tonic-gate errno = EPROTONOSUPPORT; 1077c478bd9Sstevel@tonic-gate return (-1); 1087c478bd9Sstevel@tonic-gate } 1097c478bd9Sstevel@tonic-gate 1107c478bd9Sstevel@tonic-gate /* Find available socket */ 1117c478bd9Sstevel@tonic-gate for (i = 0; i < MAXSOCKET; i++) { 1127c478bd9Sstevel@tonic-gate if (sockets[i].type == INETBOOT_UNUSED) 1137c478bd9Sstevel@tonic-gate break; 1147c478bd9Sstevel@tonic-gate } 1157c478bd9Sstevel@tonic-gate if (i >= MAXSOCKET) { 1167c478bd9Sstevel@tonic-gate errno = EMFILE; /* No slots left. */ 1177c478bd9Sstevel@tonic-gate return (-1); 1187c478bd9Sstevel@tonic-gate } 1197c478bd9Sstevel@tonic-gate 1207c478bd9Sstevel@tonic-gate /* Some socket initialization... */ 1217c478bd9Sstevel@tonic-gate sockets[i].so_rcvbuf = SO_DEF_RCVBUF; 1227c478bd9Sstevel@tonic-gate sockets[i].so_sndbuf = SO_DEF_SNDBUF; 1237c478bd9Sstevel@tonic-gate 1247c478bd9Sstevel@tonic-gate /* 1257c478bd9Sstevel@tonic-gate * Note that we ignore the protocol field for SOCK_DGRAM and 1267c478bd9Sstevel@tonic-gate * SOCK_STREAM. When we support different protocols in future, 1277c478bd9Sstevel@tonic-gate * this needs to be changed. 1287c478bd9Sstevel@tonic-gate */ 1297c478bd9Sstevel@tonic-gate switch (type) { 1307c478bd9Sstevel@tonic-gate case SOCK_RAW: 1317c478bd9Sstevel@tonic-gate ipv4_raw_socket(&sockets[i], (uint8_t)protocol); 1327c478bd9Sstevel@tonic-gate break; 1337c478bd9Sstevel@tonic-gate case SOCK_DGRAM: 1347c478bd9Sstevel@tonic-gate udp_socket_init(&sockets[i]); 1357c478bd9Sstevel@tonic-gate break; 1367c478bd9Sstevel@tonic-gate case SOCK_STREAM: 1377c478bd9Sstevel@tonic-gate tcp_socket_init(&sockets[i]); 1387c478bd9Sstevel@tonic-gate break; 1397c478bd9Sstevel@tonic-gate default: 1407c478bd9Sstevel@tonic-gate errno = EPROTOTYPE; 1417c478bd9Sstevel@tonic-gate break; 1427c478bd9Sstevel@tonic-gate } 1437c478bd9Sstevel@tonic-gate 1447c478bd9Sstevel@tonic-gate if (errno != 0) 1457c478bd9Sstevel@tonic-gate return (-1); 1467c478bd9Sstevel@tonic-gate 1477c478bd9Sstevel@tonic-gate /* IPv4 generic initialization. */ 1487c478bd9Sstevel@tonic-gate ipv4_socket_init(&sockets[i]); 1497c478bd9Sstevel@tonic-gate 1507c478bd9Sstevel@tonic-gate /* MAC generic initialization. */ 1517c478bd9Sstevel@tonic-gate mac_socket_init(&sockets[i]); 1527c478bd9Sstevel@tonic-gate 1537c478bd9Sstevel@tonic-gate return (i + SOCKETTYPE); 1547c478bd9Sstevel@tonic-gate } 1557c478bd9Sstevel@tonic-gate 1567c478bd9Sstevel@tonic-gate int 1577c478bd9Sstevel@tonic-gate getsockname(int s, struct sockaddr *name, socklen_t *namelen) 1587c478bd9Sstevel@tonic-gate { 1597c478bd9Sstevel@tonic-gate int i; 1607c478bd9Sstevel@tonic-gate 1617c478bd9Sstevel@tonic-gate errno = 0; 1627c478bd9Sstevel@tonic-gate if ((i = so_check_fd(s, &errno)) == -1) 1637c478bd9Sstevel@tonic-gate return (-1); 1647c478bd9Sstevel@tonic-gate 1657c478bd9Sstevel@tonic-gate if (*namelen < sizeof (struct sockaddr_in)) { 1667c478bd9Sstevel@tonic-gate errno = ENOMEM; 1677c478bd9Sstevel@tonic-gate return (-1); 1687c478bd9Sstevel@tonic-gate } 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate /* Structure assignment... */ 1717c478bd9Sstevel@tonic-gate *((struct sockaddr_in *)name) = sockets[i].bind; 1727c478bd9Sstevel@tonic-gate *namelen = sizeof (struct sockaddr_in); 1737c478bd9Sstevel@tonic-gate return (0); 1747c478bd9Sstevel@tonic-gate } 1757c478bd9Sstevel@tonic-gate 1767c478bd9Sstevel@tonic-gate /* 1777c478bd9Sstevel@tonic-gate * The socket options we support are: 1787c478bd9Sstevel@tonic-gate * SO_RCVTIMEO - Value is in msecs, and is of uint32_t. 1797c478bd9Sstevel@tonic-gate * SO_DONTROUTE - Value is an int, and is a boolean (nonzero if set). 1807c478bd9Sstevel@tonic-gate * SO_REUSEADDR - Value is an int boolean. 1817c478bd9Sstevel@tonic-gate * SO_RCVBUF - Value is an int. 1827c478bd9Sstevel@tonic-gate * SO_SNDBUF - Value is an int. 1837c478bd9Sstevel@tonic-gate */ 1847c478bd9Sstevel@tonic-gate int 1857c478bd9Sstevel@tonic-gate getsockopt(int s, int level, int option, void *optval, socklen_t *optlen) 1867c478bd9Sstevel@tonic-gate { 1877c478bd9Sstevel@tonic-gate int i; 1887c478bd9Sstevel@tonic-gate 1897c478bd9Sstevel@tonic-gate errno = 0; 1907c478bd9Sstevel@tonic-gate if ((i = so_check_fd(s, &errno)) == -1) 1917c478bd9Sstevel@tonic-gate return (-1); 1927c478bd9Sstevel@tonic-gate 1937c478bd9Sstevel@tonic-gate switch (level) { 1947c478bd9Sstevel@tonic-gate case SOL_SOCKET: { 1957c478bd9Sstevel@tonic-gate switch (option) { 1967c478bd9Sstevel@tonic-gate case SO_RCVTIMEO: 1977c478bd9Sstevel@tonic-gate if (*optlen == sizeof (uint32_t)) { 1987c478bd9Sstevel@tonic-gate *(uint32_t *)optval = sockets[i].in_timeout; 1997c478bd9Sstevel@tonic-gate } else { 2007c478bd9Sstevel@tonic-gate *optlen = 0; 2017c478bd9Sstevel@tonic-gate errno = EINVAL; 2027c478bd9Sstevel@tonic-gate } 2037c478bd9Sstevel@tonic-gate break; 2047c478bd9Sstevel@tonic-gate case SO_DONTROUTE: 2057c478bd9Sstevel@tonic-gate if (*optlen == sizeof (int)) { 2067c478bd9Sstevel@tonic-gate *(int *)optval = 2077c478bd9Sstevel@tonic-gate (sockets[i].out_flags & SO_DONTROUTE); 2087c478bd9Sstevel@tonic-gate } else { 2097c478bd9Sstevel@tonic-gate *optlen = 0; 2107c478bd9Sstevel@tonic-gate errno = EINVAL; 2117c478bd9Sstevel@tonic-gate } 2127c478bd9Sstevel@tonic-gate break; 2137c478bd9Sstevel@tonic-gate case SO_REUSEADDR: 2147c478bd9Sstevel@tonic-gate if (*optlen == sizeof (int)) { 2157c478bd9Sstevel@tonic-gate *(int *)optval = 2167c478bd9Sstevel@tonic-gate (sockets[i].so_opt & SO_REUSEADDR); 2177c478bd9Sstevel@tonic-gate } else { 2187c478bd9Sstevel@tonic-gate *optlen = 0; 2197c478bd9Sstevel@tonic-gate errno = EINVAL; 2207c478bd9Sstevel@tonic-gate } 2217c478bd9Sstevel@tonic-gate break; 2227c478bd9Sstevel@tonic-gate case SO_RCVBUF: 2237c478bd9Sstevel@tonic-gate if (*optlen == sizeof (int)) { 2247c478bd9Sstevel@tonic-gate *(int *)optval = sockets[i].so_rcvbuf; 2257c478bd9Sstevel@tonic-gate } else { 2267c478bd9Sstevel@tonic-gate *optlen = 0; 2277c478bd9Sstevel@tonic-gate errno = EINVAL; 2287c478bd9Sstevel@tonic-gate } 2297c478bd9Sstevel@tonic-gate break; 2307c478bd9Sstevel@tonic-gate case SO_SNDBUF: 2317c478bd9Sstevel@tonic-gate if (*optlen == sizeof (int)) { 2327c478bd9Sstevel@tonic-gate *(int *)optval = sockets[i].so_sndbuf; 2337c478bd9Sstevel@tonic-gate } else { 2347c478bd9Sstevel@tonic-gate *optlen = 0; 2357c478bd9Sstevel@tonic-gate errno = EINVAL; 2367c478bd9Sstevel@tonic-gate } 2377c478bd9Sstevel@tonic-gate break; 2387c478bd9Sstevel@tonic-gate case SO_LINGER: 2397c478bd9Sstevel@tonic-gate if (*optlen == sizeof (struct linger)) { 2407c478bd9Sstevel@tonic-gate /* struct copy */ 2417c478bd9Sstevel@tonic-gate *(struct linger *)optval = sockets[i].so_linger; 2427c478bd9Sstevel@tonic-gate } else { 2437c478bd9Sstevel@tonic-gate *optlen = 0; 2447c478bd9Sstevel@tonic-gate errno = EINVAL; 2457c478bd9Sstevel@tonic-gate } 2467c478bd9Sstevel@tonic-gate default: 2477c478bd9Sstevel@tonic-gate errno = ENOPROTOOPT; 2487c478bd9Sstevel@tonic-gate break; 2497c478bd9Sstevel@tonic-gate } 2507c478bd9Sstevel@tonic-gate break; 2517c478bd9Sstevel@tonic-gate } /* case SOL_SOCKET */ 2527c478bd9Sstevel@tonic-gate case IPPROTO_TCP: 2537c478bd9Sstevel@tonic-gate case IPPROTO_IP: { 2547c478bd9Sstevel@tonic-gate switch (option) { 2557c478bd9Sstevel@tonic-gate default: 2567c478bd9Sstevel@tonic-gate *optlen = 0; 2577c478bd9Sstevel@tonic-gate errno = ENOPROTOOPT; 2587c478bd9Sstevel@tonic-gate break; 2597c478bd9Sstevel@tonic-gate } 2607c478bd9Sstevel@tonic-gate break; 2617c478bd9Sstevel@tonic-gate } /* case IPPROTO_IP or IPPROTO_TCP */ 2627c478bd9Sstevel@tonic-gate default: 2637c478bd9Sstevel@tonic-gate errno = ENOPROTOOPT; 2647c478bd9Sstevel@tonic-gate break; 2657c478bd9Sstevel@tonic-gate } /* switch (level) */ 2667c478bd9Sstevel@tonic-gate 2677c478bd9Sstevel@tonic-gate if (errno != 0) 2687c478bd9Sstevel@tonic-gate return (-1); 2697c478bd9Sstevel@tonic-gate else 2707c478bd9Sstevel@tonic-gate return (0); 2717c478bd9Sstevel@tonic-gate } 2727c478bd9Sstevel@tonic-gate 2737c478bd9Sstevel@tonic-gate /* 2747c478bd9Sstevel@tonic-gate * Generate a network-order source port from the privileged range if 2757c478bd9Sstevel@tonic-gate * "reserved" is true, dynamic/private range otherwise. We consider the 2767c478bd9Sstevel@tonic-gate * range of 512-1023 privileged ports as ports we can use. This mirrors 2777c478bd9Sstevel@tonic-gate * historical rpc client practice for privileged port selection. 2787c478bd9Sstevel@tonic-gate */ 2797c478bd9Sstevel@tonic-gate in_port_t 2807c478bd9Sstevel@tonic-gate get_source_port(boolean_t reserved) 2817c478bd9Sstevel@tonic-gate { 2827c478bd9Sstevel@tonic-gate static in_port_t dynamic = IPPORT_DYNAMIC_START - 1, 2837c478bd9Sstevel@tonic-gate rsvdport = (IPPORT_RESERVED / 2) - 1; 2847c478bd9Sstevel@tonic-gate in_port_t p; 2857c478bd9Sstevel@tonic-gate 2867c478bd9Sstevel@tonic-gate if (reserved) { 2877c478bd9Sstevel@tonic-gate if (++rsvdport >= IPPORT_RESERVED) 2887c478bd9Sstevel@tonic-gate p = rsvdport = IPPORT_RESERVED / 2; 2897c478bd9Sstevel@tonic-gate else 2907c478bd9Sstevel@tonic-gate p = rsvdport; 2917c478bd9Sstevel@tonic-gate } else 2927c478bd9Sstevel@tonic-gate p = ++dynamic; 2937c478bd9Sstevel@tonic-gate 2947c478bd9Sstevel@tonic-gate return (htons(p)); 2957c478bd9Sstevel@tonic-gate } 2967c478bd9Sstevel@tonic-gate 2977c478bd9Sstevel@tonic-gate /* 2987c478bd9Sstevel@tonic-gate * The socket options we support are: 2997c478bd9Sstevel@tonic-gate * SO_RECVTIMEO - Value is uint32_t msecs. 3007c478bd9Sstevel@tonic-gate * SO_DONTROUTE - Value is int boolean (nonzero == TRUE, zero == FALSE). 3017c478bd9Sstevel@tonic-gate * SO_REUSEADDR - value is int boolean. 3027c478bd9Sstevel@tonic-gate * SO_RCVBUF - Value is int. 3037c478bd9Sstevel@tonic-gate * SO_SNDBUF - Value is int. 3047c478bd9Sstevel@tonic-gate */ 3057c478bd9Sstevel@tonic-gate int 3067c478bd9Sstevel@tonic-gate setsockopt(int s, int level, int option, const void *optval, socklen_t optlen) 3077c478bd9Sstevel@tonic-gate { 3087c478bd9Sstevel@tonic-gate int i; 3097c478bd9Sstevel@tonic-gate 3107c478bd9Sstevel@tonic-gate errno = 0; 3117c478bd9Sstevel@tonic-gate if ((i = so_check_fd(s, &errno)) == -1) 3127c478bd9Sstevel@tonic-gate return (-1); 3137c478bd9Sstevel@tonic-gate 3147c478bd9Sstevel@tonic-gate switch (level) { 3157c478bd9Sstevel@tonic-gate case SOL_SOCKET: { 3167c478bd9Sstevel@tonic-gate switch (option) { 3177c478bd9Sstevel@tonic-gate case SO_RCVTIMEO: 3187c478bd9Sstevel@tonic-gate if (optlen == sizeof (uint32_t)) 3197c478bd9Sstevel@tonic-gate sockets[i].in_timeout = *(uint32_t *)optval; 3207c478bd9Sstevel@tonic-gate else { 3217c478bd9Sstevel@tonic-gate errno = EINVAL; 3227c478bd9Sstevel@tonic-gate } 3237c478bd9Sstevel@tonic-gate break; 3247c478bd9Sstevel@tonic-gate case SO_DONTROUTE: 3257c478bd9Sstevel@tonic-gate if (optlen == sizeof (int)) { 3267c478bd9Sstevel@tonic-gate if (*(int *)optval) 3277c478bd9Sstevel@tonic-gate sockets[i].out_flags |= SO_DONTROUTE; 3287c478bd9Sstevel@tonic-gate else 3297c478bd9Sstevel@tonic-gate sockets[i].out_flags &= ~SO_DONTROUTE; 3307c478bd9Sstevel@tonic-gate } else { 3317c478bd9Sstevel@tonic-gate errno = EINVAL; 3327c478bd9Sstevel@tonic-gate } 3337c478bd9Sstevel@tonic-gate break; 3347c478bd9Sstevel@tonic-gate case SO_REUSEADDR: 3357c478bd9Sstevel@tonic-gate if (optlen == sizeof (int)) { 3367c478bd9Sstevel@tonic-gate if (*(int *)optval) 3377c478bd9Sstevel@tonic-gate sockets[i].so_opt |= SO_REUSEADDR; 3387c478bd9Sstevel@tonic-gate else 3397c478bd9Sstevel@tonic-gate sockets[i].so_opt &= ~SO_REUSEADDR; 3407c478bd9Sstevel@tonic-gate } else { 3417c478bd9Sstevel@tonic-gate errno = EINVAL; 3427c478bd9Sstevel@tonic-gate } 3437c478bd9Sstevel@tonic-gate break; 3447c478bd9Sstevel@tonic-gate case SO_RCVBUF: 3457c478bd9Sstevel@tonic-gate if (optlen == sizeof (int)) { 3467c478bd9Sstevel@tonic-gate sockets[i].so_rcvbuf = *(int *)optval; 3477c478bd9Sstevel@tonic-gate if (sockets[i].so_rcvbuf > SO_MAX_BUF) 3487c478bd9Sstevel@tonic-gate sockets[i].so_rcvbuf = SO_MAX_BUF; 3497c478bd9Sstevel@tonic-gate (void) tcp_opt_set(sockets[i].pcb, 3507c478bd9Sstevel@tonic-gate level, option, optval, optlen); 3517c478bd9Sstevel@tonic-gate } else { 3527c478bd9Sstevel@tonic-gate errno = EINVAL; 3537c478bd9Sstevel@tonic-gate } 3547c478bd9Sstevel@tonic-gate break; 3557c478bd9Sstevel@tonic-gate case SO_SNDBUF: 3567c478bd9Sstevel@tonic-gate if (optlen == sizeof (int)) { 3577c478bd9Sstevel@tonic-gate sockets[i].so_sndbuf = *(int *)optval; 3587c478bd9Sstevel@tonic-gate if (sockets[i].so_sndbuf > SO_MAX_BUF) 3597c478bd9Sstevel@tonic-gate sockets[i].so_sndbuf = SO_MAX_BUF; 3607c478bd9Sstevel@tonic-gate (void) tcp_opt_set(sockets[i].pcb, 3617c478bd9Sstevel@tonic-gate level, option, optval, optlen); 3627c478bd9Sstevel@tonic-gate } else { 3637c478bd9Sstevel@tonic-gate errno = EINVAL; 3647c478bd9Sstevel@tonic-gate } 3657c478bd9Sstevel@tonic-gate break; 3667c478bd9Sstevel@tonic-gate case SO_LINGER: 3677c478bd9Sstevel@tonic-gate if (optlen == sizeof (struct linger)) { 3687c478bd9Sstevel@tonic-gate /* struct copy */ 3697c478bd9Sstevel@tonic-gate sockets[i].so_linger = *(struct linger *)optval; 3707c478bd9Sstevel@tonic-gate (void) tcp_opt_set(sockets[i].pcb, 3717c478bd9Sstevel@tonic-gate level, option, optval, optlen); 3727c478bd9Sstevel@tonic-gate } else { 3737c478bd9Sstevel@tonic-gate errno = EINVAL; 3747c478bd9Sstevel@tonic-gate } 3757c478bd9Sstevel@tonic-gate break; 3767c478bd9Sstevel@tonic-gate default: 3777c478bd9Sstevel@tonic-gate errno = ENOPROTOOPT; 3787c478bd9Sstevel@tonic-gate break; 3797c478bd9Sstevel@tonic-gate } 3807c478bd9Sstevel@tonic-gate break; 3817c478bd9Sstevel@tonic-gate } /* case SOL_SOCKET */ 3827c478bd9Sstevel@tonic-gate case IPPROTO_TCP: 3837c478bd9Sstevel@tonic-gate case IPPROTO_IP: { 3847c478bd9Sstevel@tonic-gate switch (option) { 3857c478bd9Sstevel@tonic-gate default: 3867c478bd9Sstevel@tonic-gate errno = ENOPROTOOPT; 3877c478bd9Sstevel@tonic-gate break; 3887c478bd9Sstevel@tonic-gate } 3897c478bd9Sstevel@tonic-gate break; 3907c478bd9Sstevel@tonic-gate } /* case IPPROTO_IP or IPPROTO_TCP */ 3917c478bd9Sstevel@tonic-gate default: 3927c478bd9Sstevel@tonic-gate errno = ENOPROTOOPT; 3937c478bd9Sstevel@tonic-gate break; 3947c478bd9Sstevel@tonic-gate } /* switch (level) */ 3957c478bd9Sstevel@tonic-gate 3967c478bd9Sstevel@tonic-gate if (errno != 0) 3977c478bd9Sstevel@tonic-gate return (-1); 3987c478bd9Sstevel@tonic-gate else 3997c478bd9Sstevel@tonic-gate return (0); 4007c478bd9Sstevel@tonic-gate } 4017c478bd9Sstevel@tonic-gate 4027c478bd9Sstevel@tonic-gate /* 4037c478bd9Sstevel@tonic-gate * Shut down part of a full-duplex connection. 4047c478bd9Sstevel@tonic-gate * 4057c478bd9Sstevel@tonic-gate * Only supported for TCP sockets 4067c478bd9Sstevel@tonic-gate */ 4077c478bd9Sstevel@tonic-gate int 4087c478bd9Sstevel@tonic-gate shutdown(int s, int how) 4097c478bd9Sstevel@tonic-gate { 4107c478bd9Sstevel@tonic-gate int sock_id; 4117c478bd9Sstevel@tonic-gate int i; 4127c478bd9Sstevel@tonic-gate 4137c478bd9Sstevel@tonic-gate errno = 0; 4147c478bd9Sstevel@tonic-gate if ((sock_id = so_check_fd(s, &errno)) == -1) 4157c478bd9Sstevel@tonic-gate return (-1); 4167c478bd9Sstevel@tonic-gate 4177c478bd9Sstevel@tonic-gate /* shutdown only supported for TCP sockets */ 4187c478bd9Sstevel@tonic-gate if (sockets[sock_id].type != INETBOOT_STREAM) { 4197c478bd9Sstevel@tonic-gate errno = EOPNOTSUPP; 4207c478bd9Sstevel@tonic-gate return (-1); 4217c478bd9Sstevel@tonic-gate } 4227c478bd9Sstevel@tonic-gate 4237c478bd9Sstevel@tonic-gate if (!(sockets[sock_id].so_state & SS_ISCONNECTED)) { 4247c478bd9Sstevel@tonic-gate errno = ENOTCONN; 4257c478bd9Sstevel@tonic-gate return (-1); 4267c478bd9Sstevel@tonic-gate } 4277c478bd9Sstevel@tonic-gate 4287c478bd9Sstevel@tonic-gate switch (how) { 4297c478bd9Sstevel@tonic-gate case 0: 4307c478bd9Sstevel@tonic-gate sockets[sock_id].so_state |= SS_CANTRCVMORE; 4317c478bd9Sstevel@tonic-gate break; 4327c478bd9Sstevel@tonic-gate case 1: 4337c478bd9Sstevel@tonic-gate sockets[sock_id].so_state |= SS_CANTSENDMORE; 4347c478bd9Sstevel@tonic-gate break; 4357c478bd9Sstevel@tonic-gate case 2: 4367c478bd9Sstevel@tonic-gate sockets[sock_id].so_state |= (SS_CANTRCVMORE | SS_CANTSENDMORE); 4377c478bd9Sstevel@tonic-gate break; 4387c478bd9Sstevel@tonic-gate default: 4397c478bd9Sstevel@tonic-gate errno = EINVAL; 4407c478bd9Sstevel@tonic-gate return (-1); 4417c478bd9Sstevel@tonic-gate } 4427c478bd9Sstevel@tonic-gate 4437c478bd9Sstevel@tonic-gate switch (sockets[sock_id].so_state & 4447c478bd9Sstevel@tonic-gate (SS_CANTRCVMORE | SS_CANTSENDMORE)) { 4457c478bd9Sstevel@tonic-gate case (SS_CANTRCVMORE | SS_CANTSENDMORE): 4467c478bd9Sstevel@tonic-gate /* Call lower level protocol close routine. */ 4477c478bd9Sstevel@tonic-gate for (i = TRANSPORT_LVL; i >= MEDIA_LVL; i--) { 4487c478bd9Sstevel@tonic-gate if (sockets[sock_id].close[i] != NULL) { 4497c478bd9Sstevel@tonic-gate (void) sockets[sock_id].close[i](sock_id); 4507c478bd9Sstevel@tonic-gate } 4517c478bd9Sstevel@tonic-gate } 4527c478bd9Sstevel@tonic-gate nuke_grams(&sockets[sock_id].inq); 4537c478bd9Sstevel@tonic-gate break; 4547c478bd9Sstevel@tonic-gate case SS_CANTRCVMORE: 4557c478bd9Sstevel@tonic-gate nuke_grams(&sockets[sock_id].inq); 4567c478bd9Sstevel@tonic-gate break; 4577c478bd9Sstevel@tonic-gate case SS_CANTSENDMORE: 4587c478bd9Sstevel@tonic-gate /* Call lower level protocol close routine. */ 4597c478bd9Sstevel@tonic-gate if (tcp_shutdown(sock_id) < 0) 4607c478bd9Sstevel@tonic-gate return (-1); 4617c478bd9Sstevel@tonic-gate break; 4627c478bd9Sstevel@tonic-gate default: 4637c478bd9Sstevel@tonic-gate errno = EINVAL; 4647c478bd9Sstevel@tonic-gate return (-1); 4657c478bd9Sstevel@tonic-gate } 4667c478bd9Sstevel@tonic-gate 4677c478bd9Sstevel@tonic-gate return (0); 4687c478bd9Sstevel@tonic-gate } 4697c478bd9Sstevel@tonic-gate 4707c478bd9Sstevel@tonic-gate /* 4717c478bd9Sstevel@tonic-gate * "close" a socket. 4727c478bd9Sstevel@tonic-gate */ 4737c478bd9Sstevel@tonic-gate int 4747c478bd9Sstevel@tonic-gate socket_close(int s) 4757c478bd9Sstevel@tonic-gate { 4767c478bd9Sstevel@tonic-gate int sock_id, i; 4777c478bd9Sstevel@tonic-gate 4787c478bd9Sstevel@tonic-gate errno = 0; 4797c478bd9Sstevel@tonic-gate if ((sock_id = so_check_fd(s, &errno)) == -1) 4807c478bd9Sstevel@tonic-gate return (-1); 4817c478bd9Sstevel@tonic-gate 4827c478bd9Sstevel@tonic-gate /* Call lower level protocol close routine. */ 4837c478bd9Sstevel@tonic-gate for (i = TRANSPORT_LVL; i >= MEDIA_LVL; i--) { 4847c478bd9Sstevel@tonic-gate if (sockets[sock_id].close[i] != NULL) { 4857c478bd9Sstevel@tonic-gate /* 4867c478bd9Sstevel@tonic-gate * Note that the close() routine of other 4877c478bd9Sstevel@tonic-gate * layers can return an error. But right 4887c478bd9Sstevel@tonic-gate * now, the only mechanism to report that 4897c478bd9Sstevel@tonic-gate * back is for the close() routine to set 4907c478bd9Sstevel@tonic-gate * the errno and socket_close() will return 4917c478bd9Sstevel@tonic-gate * an error. But the close operation will 4927c478bd9Sstevel@tonic-gate * not be stopped. 4937c478bd9Sstevel@tonic-gate */ 4947c478bd9Sstevel@tonic-gate (void) sockets[sock_id].close[i](sock_id); 4957c478bd9Sstevel@tonic-gate } 4967c478bd9Sstevel@tonic-gate } 4977c478bd9Sstevel@tonic-gate 4987c478bd9Sstevel@tonic-gate /* 4997c478bd9Sstevel@tonic-gate * Clear the input queue. This has to be done 5007c478bd9Sstevel@tonic-gate * after the lower level protocol close routines have been 5017c478bd9Sstevel@tonic-gate * called as they may want to do something about the queue. 5027c478bd9Sstevel@tonic-gate */ 5037c478bd9Sstevel@tonic-gate nuke_grams(&sockets[sock_id].inq); 5047c478bd9Sstevel@tonic-gate 5057c478bd9Sstevel@tonic-gate bzero((caddr_t)&sockets[sock_id], sizeof (struct inetboot_socket)); 5067c478bd9Sstevel@tonic-gate sockets[sock_id].type = INETBOOT_UNUSED; 5077c478bd9Sstevel@tonic-gate 5087c478bd9Sstevel@tonic-gate return (0); 5097c478bd9Sstevel@tonic-gate } 5107c478bd9Sstevel@tonic-gate 5117c478bd9Sstevel@tonic-gate /* 5127c478bd9Sstevel@tonic-gate * Read up to `nbyte' of data from socket `s' into `buf'; if non-zero, 5137c478bd9Sstevel@tonic-gate * then give up after `read_timeout' seconds. Returns the number of 5147c478bd9Sstevel@tonic-gate * bytes read, or -1 on failure. 5157c478bd9Sstevel@tonic-gate */ 5167c478bd9Sstevel@tonic-gate int 5177c478bd9Sstevel@tonic-gate socket_read(int s, void *buf, size_t nbyte, int read_timeout) 5187c478bd9Sstevel@tonic-gate { 5197c478bd9Sstevel@tonic-gate ssize_t n; 5207c478bd9Sstevel@tonic-gate uint_t start, diff; 5217c478bd9Sstevel@tonic-gate 5227c478bd9Sstevel@tonic-gate /* 5237c478bd9Sstevel@tonic-gate * keep calling non-blocking recvfrom until something received 5247c478bd9Sstevel@tonic-gate * or an error occurs 5257c478bd9Sstevel@tonic-gate */ 5267c478bd9Sstevel@tonic-gate start = prom_gettime(); 52766ac517eSjk115741 for (;;) { 52866ac517eSjk115741 n = recvfrom(s, buf, nbyte, MSG_DONTWAIT, NULL, NULL); 52966ac517eSjk115741 if (n == -1 && errno == EWOULDBLOCK) { 5307c478bd9Sstevel@tonic-gate diff = (uint_t)((prom_gettime() - start) + 500) / 1000; 5317c478bd9Sstevel@tonic-gate if (read_timeout != 0 && diff > read_timeout) { 5327c478bd9Sstevel@tonic-gate errno = EINTR; 5337c478bd9Sstevel@tonic-gate return (-1); 5347c478bd9Sstevel@tonic-gate } 53566ac517eSjk115741 } else { 5367c478bd9Sstevel@tonic-gate return (n); 5377c478bd9Sstevel@tonic-gate } 53866ac517eSjk115741 } 53966ac517eSjk115741 } 5407c478bd9Sstevel@tonic-gate 5417c478bd9Sstevel@tonic-gate /* 5427c478bd9Sstevel@tonic-gate * Write up to `nbyte' bytes of data from `buf' to the address pointed to 5437c478bd9Sstevel@tonic-gate * `addr' using socket `s'. Returns the number of bytes writte on success, 5447c478bd9Sstevel@tonic-gate * or -1 on failure. 5457c478bd9Sstevel@tonic-gate */ 5467c478bd9Sstevel@tonic-gate int 5477c478bd9Sstevel@tonic-gate socket_write(int s, const void *buf, size_t nbyte, struct sockaddr_in *addr) 5487c478bd9Sstevel@tonic-gate { 5497c478bd9Sstevel@tonic-gate return (sendto(s, buf, nbyte, 0, (struct sockaddr *)addr, 5507c478bd9Sstevel@tonic-gate sizeof (*addr))); 5517c478bd9Sstevel@tonic-gate } 5527c478bd9Sstevel@tonic-gate 5537c478bd9Sstevel@tonic-gate static int 5547c478bd9Sstevel@tonic-gate bind_check(int sock_id, const struct sockaddr *addr) 5557c478bd9Sstevel@tonic-gate { 5567c478bd9Sstevel@tonic-gate int k; 5577c478bd9Sstevel@tonic-gate struct sockaddr_in *in_addr = (struct sockaddr_in *)addr; 5587c478bd9Sstevel@tonic-gate 5597c478bd9Sstevel@tonic-gate /* Do not check for duplicate bind() if SO_REUSEADDR option is set. */ 5607c478bd9Sstevel@tonic-gate if (! (sockets[sock_id].so_opt & SO_REUSEADDR)) { 5617c478bd9Sstevel@tonic-gate for (k = 0; k < MAXSOCKET; k++) { 5627c478bd9Sstevel@tonic-gate if (sockets[k].type != INETBOOT_UNUSED && 5637c478bd9Sstevel@tonic-gate sockets[k].proto == sockets[sock_id].proto && 5647c478bd9Sstevel@tonic-gate sockets[k].bound) { 5657c478bd9Sstevel@tonic-gate if ((sockets[k].bind.sin_addr.s_addr == 5667c478bd9Sstevel@tonic-gate in_addr->sin_addr.s_addr) && 5677c478bd9Sstevel@tonic-gate (sockets[k].bind.sin_port == 5687c478bd9Sstevel@tonic-gate in_addr->sin_port)) { 5697c478bd9Sstevel@tonic-gate errno = EADDRINUSE; 5707c478bd9Sstevel@tonic-gate return (-1); 5717c478bd9Sstevel@tonic-gate } 5727c478bd9Sstevel@tonic-gate } 5737c478bd9Sstevel@tonic-gate } 5747c478bd9Sstevel@tonic-gate } 5757c478bd9Sstevel@tonic-gate return (0); 5767c478bd9Sstevel@tonic-gate } 5777c478bd9Sstevel@tonic-gate 5787c478bd9Sstevel@tonic-gate /* Assign a name to an unnamed socket. */ 5797c478bd9Sstevel@tonic-gate int 5807c478bd9Sstevel@tonic-gate bind(int s, const struct sockaddr *name, socklen_t namelen) 5817c478bd9Sstevel@tonic-gate { 5827c478bd9Sstevel@tonic-gate int i; 5837c478bd9Sstevel@tonic-gate 5847c478bd9Sstevel@tonic-gate errno = 0; 5857c478bd9Sstevel@tonic-gate 5867c478bd9Sstevel@tonic-gate if ((i = so_check_fd(s, &errno)) == -1) 5877c478bd9Sstevel@tonic-gate return (-1); 5887c478bd9Sstevel@tonic-gate 5897c478bd9Sstevel@tonic-gate if (name == NULL) { 5907c478bd9Sstevel@tonic-gate /* unbind */ 5917c478bd9Sstevel@tonic-gate if (sockets[i].bound) { 5927c478bd9Sstevel@tonic-gate bzero((caddr_t)&sockets[i].bind, 5937c478bd9Sstevel@tonic-gate sizeof (struct sockaddr_in)); 5947c478bd9Sstevel@tonic-gate sockets[i].bound = B_FALSE; 5957c478bd9Sstevel@tonic-gate } 5967c478bd9Sstevel@tonic-gate return (0); 5977c478bd9Sstevel@tonic-gate } 5987c478bd9Sstevel@tonic-gate if (namelen != sizeof (struct sockaddr_in) || name == NULL) { 5997c478bd9Sstevel@tonic-gate errno = EINVAL; 6007c478bd9Sstevel@tonic-gate return (-1); 6017c478bd9Sstevel@tonic-gate } 6027c478bd9Sstevel@tonic-gate if (name->sa_family != AF_INET) { 6037c478bd9Sstevel@tonic-gate errno = EAFNOSUPPORT; 6047c478bd9Sstevel@tonic-gate return (-1); 6057c478bd9Sstevel@tonic-gate } 6067c478bd9Sstevel@tonic-gate if (sockets[i].bound) { 6077c478bd9Sstevel@tonic-gate if (bcmp((caddr_t)&sockets[i].bind, (caddr_t)name, 6087c478bd9Sstevel@tonic-gate namelen) == 0) { 6097c478bd9Sstevel@tonic-gate /* attempt to bind to same address ok... */ 6107c478bd9Sstevel@tonic-gate return (0); 6117c478bd9Sstevel@tonic-gate } 6127c478bd9Sstevel@tonic-gate errno = EINVAL; /* already bound */ 6137c478bd9Sstevel@tonic-gate return (-1); 6147c478bd9Sstevel@tonic-gate } 6157c478bd9Sstevel@tonic-gate 6167c478bd9Sstevel@tonic-gate if (errno != 0) { 6177c478bd9Sstevel@tonic-gate return (-1); 6187c478bd9Sstevel@tonic-gate } 6197c478bd9Sstevel@tonic-gate 6207c478bd9Sstevel@tonic-gate /* Check for duplicate bind(). */ 6217c478bd9Sstevel@tonic-gate if (bind_check(i, name) < 0) 6227c478bd9Sstevel@tonic-gate return (-1); 6237c478bd9Sstevel@tonic-gate 6247c478bd9Sstevel@tonic-gate bcopy((caddr_t)name, (caddr_t)&sockets[i].bind, namelen); 6257c478bd9Sstevel@tonic-gate if (sockets[i].type == INETBOOT_STREAM) { 6267c478bd9Sstevel@tonic-gate if (tcp_bind(i) < 0) { 6277c478bd9Sstevel@tonic-gate return (-1); 6287c478bd9Sstevel@tonic-gate } 6297c478bd9Sstevel@tonic-gate } 6307c478bd9Sstevel@tonic-gate sockets[i].bound = B_TRUE; 6317c478bd9Sstevel@tonic-gate 6327c478bd9Sstevel@tonic-gate return (0); 6337c478bd9Sstevel@tonic-gate } 6347c478bd9Sstevel@tonic-gate 6357c478bd9Sstevel@tonic-gate static int 6367c478bd9Sstevel@tonic-gate quickbind(int sock_id) 6377c478bd9Sstevel@tonic-gate { 6387c478bd9Sstevel@tonic-gate int i; 6397c478bd9Sstevel@tonic-gate struct sockaddr_in addr; 6407c478bd9Sstevel@tonic-gate 6417c478bd9Sstevel@tonic-gate /* 6427c478bd9Sstevel@tonic-gate * XXX This needs more work. Right now, if ipv4_setipaddr() 6437c478bd9Sstevel@tonic-gate * have not been called, this will be wrong. But we need 6447c478bd9Sstevel@tonic-gate * something better. Need to be revisited. 6457c478bd9Sstevel@tonic-gate */ 6467c478bd9Sstevel@tonic-gate ipv4_getipaddr(&addr.sin_addr); 6477c478bd9Sstevel@tonic-gate addr.sin_family = AF_INET; 6487c478bd9Sstevel@tonic-gate 6497c478bd9Sstevel@tonic-gate for (i = SMALLEST_ANON_PORT; i <= LARGEST_ANON_PORT; i++) { 6507c478bd9Sstevel@tonic-gate addr.sin_port = htons(i); 6517c478bd9Sstevel@tonic-gate if (bind_check(sock_id, (struct sockaddr *)&addr) == 0) 6527c478bd9Sstevel@tonic-gate break; 6537c478bd9Sstevel@tonic-gate } 6547c478bd9Sstevel@tonic-gate /* Need to clear errno as it is probably set by bind_check(). */ 6557c478bd9Sstevel@tonic-gate errno = 0; 6567c478bd9Sstevel@tonic-gate 6577c478bd9Sstevel@tonic-gate if (i <= LARGEST_ANON_PORT) { 6587c478bd9Sstevel@tonic-gate bcopy((caddr_t)&addr, (caddr_t)&sockets[sock_id].bind, 6597c478bd9Sstevel@tonic-gate sizeof (struct sockaddr_in)); 6607c478bd9Sstevel@tonic-gate sockets[sock_id].bound = B_TRUE; 6617c478bd9Sstevel@tonic-gate #ifdef DEBUG 6627c478bd9Sstevel@tonic-gate printf("quick bind done addr %s port %d\n", 6637c478bd9Sstevel@tonic-gate inet_ntoa(sockets[sock_id].bind.sin_addr), 6647c478bd9Sstevel@tonic-gate ntohs(sockets[sock_id].bind.sin_port)); 6657c478bd9Sstevel@tonic-gate #endif 6667c478bd9Sstevel@tonic-gate return (0); 6677c478bd9Sstevel@tonic-gate } else { 6687c478bd9Sstevel@tonic-gate return (-1); 6697c478bd9Sstevel@tonic-gate } 6707c478bd9Sstevel@tonic-gate } 6717c478bd9Sstevel@tonic-gate 6727c478bd9Sstevel@tonic-gate int 6737c478bd9Sstevel@tonic-gate listen(int fd, int backlog) 6747c478bd9Sstevel@tonic-gate { 6757c478bd9Sstevel@tonic-gate int sock_id; 6767c478bd9Sstevel@tonic-gate 6777c478bd9Sstevel@tonic-gate errno = 0; 6787c478bd9Sstevel@tonic-gate if ((sock_id = so_check_fd(fd, &errno)) == -1) 6797c478bd9Sstevel@tonic-gate return (-1); 6807c478bd9Sstevel@tonic-gate 6817c478bd9Sstevel@tonic-gate if (sockets[sock_id].type != INETBOOT_STREAM) { 6827c478bd9Sstevel@tonic-gate errno = EOPNOTSUPP; 6837c478bd9Sstevel@tonic-gate return (-1); 6847c478bd9Sstevel@tonic-gate } 6857c478bd9Sstevel@tonic-gate if (sockets[sock_id].so_error != 0) { 6867c478bd9Sstevel@tonic-gate errno = sockets[sock_id].so_error; 6877c478bd9Sstevel@tonic-gate return (-1); 6887c478bd9Sstevel@tonic-gate } 6897c478bd9Sstevel@tonic-gate return (tcp_listen(sock_id, backlog)); 6907c478bd9Sstevel@tonic-gate } 6917c478bd9Sstevel@tonic-gate 6927c478bd9Sstevel@tonic-gate int 6937c478bd9Sstevel@tonic-gate accept(int fd, struct sockaddr *addr, socklen_t *addr_len) 6947c478bd9Sstevel@tonic-gate { 6957c478bd9Sstevel@tonic-gate int sock_id; 6967c478bd9Sstevel@tonic-gate int new_sd; 6977c478bd9Sstevel@tonic-gate 6987c478bd9Sstevel@tonic-gate errno = 0; 6997c478bd9Sstevel@tonic-gate if ((sock_id = so_check_fd(fd, &errno)) == -1) 7007c478bd9Sstevel@tonic-gate return (-1); 7017c478bd9Sstevel@tonic-gate 7027c478bd9Sstevel@tonic-gate if (sockets[sock_id].type != INETBOOT_STREAM) { 7037c478bd9Sstevel@tonic-gate errno = EOPNOTSUPP; 7047c478bd9Sstevel@tonic-gate return (-1); 7057c478bd9Sstevel@tonic-gate } 7067c478bd9Sstevel@tonic-gate if (sockets[sock_id].so_error != 0) { 7077c478bd9Sstevel@tonic-gate errno = sockets[sock_id].so_error; 7087c478bd9Sstevel@tonic-gate return (-1); 7097c478bd9Sstevel@tonic-gate } 7107c478bd9Sstevel@tonic-gate if ((new_sd = tcp_accept(sock_id, addr, addr_len)) == -1) 7117c478bd9Sstevel@tonic-gate return (-1); 7127c478bd9Sstevel@tonic-gate sock_id = so_check_fd(new_sd, &errno); 7137c478bd9Sstevel@tonic-gate sockets[sock_id].so_state |= SS_ISCONNECTED; 7147c478bd9Sstevel@tonic-gate return (new_sd); 7157c478bd9Sstevel@tonic-gate } 7167c478bd9Sstevel@tonic-gate 7177c478bd9Sstevel@tonic-gate int 7187c478bd9Sstevel@tonic-gate connect(int fd, const struct sockaddr *addr, socklen_t addr_len) 7197c478bd9Sstevel@tonic-gate { 7207c478bd9Sstevel@tonic-gate int sock_id; 7217c478bd9Sstevel@tonic-gate int so_type; 7227c478bd9Sstevel@tonic-gate 7237c478bd9Sstevel@tonic-gate errno = 0; 7247c478bd9Sstevel@tonic-gate if ((sock_id = so_check_fd(fd, &errno)) == -1) 7257c478bd9Sstevel@tonic-gate return (-1); 7267c478bd9Sstevel@tonic-gate 7277c478bd9Sstevel@tonic-gate so_type = sockets[sock_id].type; 7287c478bd9Sstevel@tonic-gate 7297c478bd9Sstevel@tonic-gate if (addr == NULL || addr_len == 0) { 7307c478bd9Sstevel@tonic-gate errno = EINVAL; 7317c478bd9Sstevel@tonic-gate return (-1); 7327c478bd9Sstevel@tonic-gate } 7337c478bd9Sstevel@tonic-gate /* Don't allow connect for raw socket. */ 7347c478bd9Sstevel@tonic-gate if (so_type == INETBOOT_RAW) { 7357c478bd9Sstevel@tonic-gate errno = EPROTONOSUPPORT; 7367c478bd9Sstevel@tonic-gate return (-1); 7377c478bd9Sstevel@tonic-gate } 7387c478bd9Sstevel@tonic-gate 7397c478bd9Sstevel@tonic-gate if (sockets[sock_id].so_state & SS_ISCONNECTED) { 7407c478bd9Sstevel@tonic-gate errno = EINVAL; 7417c478bd9Sstevel@tonic-gate return (-1); 7427c478bd9Sstevel@tonic-gate } 7437c478bd9Sstevel@tonic-gate 7447c478bd9Sstevel@tonic-gate if (sockets[sock_id].so_error != 0) { 7457c478bd9Sstevel@tonic-gate errno = sockets[sock_id].so_error; 7467c478bd9Sstevel@tonic-gate return (-1); 7477c478bd9Sstevel@tonic-gate } 7487c478bd9Sstevel@tonic-gate 7497c478bd9Sstevel@tonic-gate /* If the socket is not bound, we need to do a quick bind. */ 7507c478bd9Sstevel@tonic-gate if (!sockets[sock_id].bound) { 7517c478bd9Sstevel@tonic-gate /* For TCP socket, just call tcp_bind(). */ 7527c478bd9Sstevel@tonic-gate if (so_type == INETBOOT_STREAM) { 7537c478bd9Sstevel@tonic-gate if (tcp_bind(sock_id) < 0) 7547c478bd9Sstevel@tonic-gate return (-1); 7557c478bd9Sstevel@tonic-gate } else { 7567c478bd9Sstevel@tonic-gate if (quickbind(sock_id) < 0) { 7577c478bd9Sstevel@tonic-gate errno = EADDRNOTAVAIL; 7587c478bd9Sstevel@tonic-gate return (-1); 7597c478bd9Sstevel@tonic-gate } 7607c478bd9Sstevel@tonic-gate } 7617c478bd9Sstevel@tonic-gate } 7627c478bd9Sstevel@tonic-gate /* Should do some sanity check for addr .... */ 7637c478bd9Sstevel@tonic-gate bcopy((caddr_t)addr, &sockets[sock_id].remote, 7647c478bd9Sstevel@tonic-gate sizeof (struct sockaddr_in)); 7657c478bd9Sstevel@tonic-gate 7667c478bd9Sstevel@tonic-gate if (sockets[sock_id].type == INETBOOT_STREAM) { 7677c478bd9Sstevel@tonic-gate /* Call TCP connect routine. */ 7687c478bd9Sstevel@tonic-gate if (tcp_connect(sock_id) == 0) 7697c478bd9Sstevel@tonic-gate sockets[sock_id].so_state |= SS_ISCONNECTED; 7707c478bd9Sstevel@tonic-gate else { 7717c478bd9Sstevel@tonic-gate if (sockets[sock_id].so_error != 0) 7727c478bd9Sstevel@tonic-gate errno = sockets[sock_id].so_error; 7737c478bd9Sstevel@tonic-gate return (-1); 7747c478bd9Sstevel@tonic-gate } 7757c478bd9Sstevel@tonic-gate } else { 7767c478bd9Sstevel@tonic-gate sockets[sock_id].so_state |= SS_ISCONNECTED; 7777c478bd9Sstevel@tonic-gate } 7787c478bd9Sstevel@tonic-gate return (0); 7797c478bd9Sstevel@tonic-gate } 7807c478bd9Sstevel@tonic-gate 7817c478bd9Sstevel@tonic-gate /* Just a wrapper around recvfrom(). */ 7827c478bd9Sstevel@tonic-gate ssize_t 7837c478bd9Sstevel@tonic-gate recv(int s, void *buf, size_t len, int flags) 7847c478bd9Sstevel@tonic-gate { 7857c478bd9Sstevel@tonic-gate return (recvfrom(s, buf, len, flags, NULL, NULL)); 7867c478bd9Sstevel@tonic-gate } 7877c478bd9Sstevel@tonic-gate 7887c478bd9Sstevel@tonic-gate /* 7897c478bd9Sstevel@tonic-gate * Receive messages from a connectionless socket. Legal flags are 0 and 7907c478bd9Sstevel@tonic-gate * MSG_DONTWAIT. MSG_WAITALL is not currently supported. 7917c478bd9Sstevel@tonic-gate * 7927c478bd9Sstevel@tonic-gate * Returns length of message for success, -1 if error occurred. 7937c478bd9Sstevel@tonic-gate */ 7947c478bd9Sstevel@tonic-gate ssize_t 7957c478bd9Sstevel@tonic-gate recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr *from, 7967c478bd9Sstevel@tonic-gate socklen_t *fromlen) 7977c478bd9Sstevel@tonic-gate { 7987c478bd9Sstevel@tonic-gate int sock_id, i; 7997c478bd9Sstevel@tonic-gate ssize_t datalen, bytes = 0; 8007c478bd9Sstevel@tonic-gate struct inetgram *icp; 8017c478bd9Sstevel@tonic-gate enum SockType so_type; 8027c478bd9Sstevel@tonic-gate char *tmp_buf; 8037c478bd9Sstevel@tonic-gate mblk_t *mp; 8047c478bd9Sstevel@tonic-gate 8057c478bd9Sstevel@tonic-gate errno = 0; 8067c478bd9Sstevel@tonic-gate 8077c478bd9Sstevel@tonic-gate if ((sock_id = so_check_fd(s, &errno)) == -1) { 8087c478bd9Sstevel@tonic-gate errno = EINVAL; 8097c478bd9Sstevel@tonic-gate return (-1); 8107c478bd9Sstevel@tonic-gate } 8117c478bd9Sstevel@tonic-gate 8127c478bd9Sstevel@tonic-gate if (sockets[sock_id].type == INETBOOT_STREAM && 8137c478bd9Sstevel@tonic-gate !(sockets[sock_id].so_state & SS_ISCONNECTED)) { 8147c478bd9Sstevel@tonic-gate errno = ENOTCONN; 8157c478bd9Sstevel@tonic-gate return (-1); 8167c478bd9Sstevel@tonic-gate } 8177c478bd9Sstevel@tonic-gate 8187c478bd9Sstevel@tonic-gate if (buf == NULL || len == 0) { 8197c478bd9Sstevel@tonic-gate errno = EINVAL; 8207c478bd9Sstevel@tonic-gate return (-1); 8217c478bd9Sstevel@tonic-gate } 8227c478bd9Sstevel@tonic-gate /* Yup - MSG_WAITALL not implemented */ 8237c478bd9Sstevel@tonic-gate if ((flags & ~MSG_DONTWAIT) != 0) { 8247c478bd9Sstevel@tonic-gate errno = EINVAL; 8257c478bd9Sstevel@tonic-gate return (-1); 8267c478bd9Sstevel@tonic-gate } 8277c478bd9Sstevel@tonic-gate 8287c478bd9Sstevel@tonic-gate retry: 8297c478bd9Sstevel@tonic-gate if (sockets[sock_id].inq == NULL) { 8307c478bd9Sstevel@tonic-gate /* Go out and check the wire */ 8317c478bd9Sstevel@tonic-gate for (i = MEDIA_LVL; i < APP_LVL; i++) { 8327c478bd9Sstevel@tonic-gate if (sockets[sock_id].input[i] != NULL) { 8337c478bd9Sstevel@tonic-gate if (sockets[sock_id].input[i](sock_id) < 0) { 8347c478bd9Sstevel@tonic-gate if (sockets[sock_id].so_error != 0) { 8357c478bd9Sstevel@tonic-gate errno = 8367c478bd9Sstevel@tonic-gate sockets[sock_id].so_error; 8377c478bd9Sstevel@tonic-gate } 8387c478bd9Sstevel@tonic-gate return (-1); 8397c478bd9Sstevel@tonic-gate } 8407c478bd9Sstevel@tonic-gate } 8417c478bd9Sstevel@tonic-gate } 8427c478bd9Sstevel@tonic-gate } 8437c478bd9Sstevel@tonic-gate 8447c478bd9Sstevel@tonic-gate so_type = sockets[sock_id].type; 8457c478bd9Sstevel@tonic-gate 8467c478bd9Sstevel@tonic-gate /* Remove unknown inetgrams from the head of inq. Can this happen? */ 8477c478bd9Sstevel@tonic-gate while ((icp = sockets[sock_id].inq) != NULL) { 8487c478bd9Sstevel@tonic-gate if ((so_type == INETBOOT_DGRAM || 8497c478bd9Sstevel@tonic-gate so_type == INETBOOT_STREAM) && 8507c478bd9Sstevel@tonic-gate icp->igm_level != APP_LVL) { 8517c478bd9Sstevel@tonic-gate #ifdef DEBUG 8527c478bd9Sstevel@tonic-gate printf("recvfrom: unexpected level %d frame found\n", 8537c478bd9Sstevel@tonic-gate icp->igm_level); 8547c478bd9Sstevel@tonic-gate #endif /* DEBUG */ 8557c478bd9Sstevel@tonic-gate del_gram(&sockets[sock_id].inq, icp, B_TRUE); 8567c478bd9Sstevel@tonic-gate continue; 8577c478bd9Sstevel@tonic-gate } else { 8587c478bd9Sstevel@tonic-gate break; 8597c478bd9Sstevel@tonic-gate } 8607c478bd9Sstevel@tonic-gate } 8617c478bd9Sstevel@tonic-gate 8627c478bd9Sstevel@tonic-gate 8637c478bd9Sstevel@tonic-gate if (icp == NULL) { 8647c478bd9Sstevel@tonic-gate /* 8657c478bd9Sstevel@tonic-gate * Checking for error should be done everytime a lower layer 8667c478bd9Sstevel@tonic-gate * input routing is called. For example, if TCP gets a RST, 8677c478bd9Sstevel@tonic-gate * this should be reported asap. 8687c478bd9Sstevel@tonic-gate */ 8697c478bd9Sstevel@tonic-gate if (sockets[sock_id].so_state & SS_CANTRCVMORE) { 8707c478bd9Sstevel@tonic-gate if (sockets[sock_id].so_error != 0) { 8717c478bd9Sstevel@tonic-gate errno = sockets[sock_id].so_error; 8727c478bd9Sstevel@tonic-gate return (-1); 8737c478bd9Sstevel@tonic-gate } else { 8747c478bd9Sstevel@tonic-gate return (0); 8757c478bd9Sstevel@tonic-gate } 8767c478bd9Sstevel@tonic-gate } 8777c478bd9Sstevel@tonic-gate 8787c478bd9Sstevel@tonic-gate if ((flags & MSG_DONTWAIT) == 0) 8797c478bd9Sstevel@tonic-gate goto retry; /* wait forever */ 8807c478bd9Sstevel@tonic-gate 8817c478bd9Sstevel@tonic-gate /* no data */ 8827c478bd9Sstevel@tonic-gate errno = EWOULDBLOCK; 8837c478bd9Sstevel@tonic-gate return (-1); 8847c478bd9Sstevel@tonic-gate } 8857c478bd9Sstevel@tonic-gate 8867c478bd9Sstevel@tonic-gate if (from != NULL && fromlen != NULL) { 8877c478bd9Sstevel@tonic-gate switch (so_type) { 8887c478bd9Sstevel@tonic-gate case INETBOOT_STREAM: 8897c478bd9Sstevel@tonic-gate /* Need to copy from the socket's remote address. */ 8907c478bd9Sstevel@tonic-gate bcopy(&(sockets[sock_id].remote), from, MIN(*fromlen, 8917c478bd9Sstevel@tonic-gate sizeof (struct sockaddr_in))); 8927c478bd9Sstevel@tonic-gate break; 8937c478bd9Sstevel@tonic-gate case INETBOOT_RAW: 8947c478bd9Sstevel@tonic-gate case INETBOOT_DGRAM: 8957c478bd9Sstevel@tonic-gate default: 8967c478bd9Sstevel@tonic-gate if (*fromlen > sizeof (icp->igm_saddr)) 8977c478bd9Sstevel@tonic-gate *fromlen = sizeof (icp->igm_saddr); 8987c478bd9Sstevel@tonic-gate bcopy((caddr_t)&(icp->igm_saddr), (caddr_t)from, 8997c478bd9Sstevel@tonic-gate MIN(*fromlen, sizeof (struct sockaddr_in))); 9007c478bd9Sstevel@tonic-gate break; 9017c478bd9Sstevel@tonic-gate } 9027c478bd9Sstevel@tonic-gate } 9037c478bd9Sstevel@tonic-gate 9047c478bd9Sstevel@tonic-gate mp = icp->igm_mp; 9057c478bd9Sstevel@tonic-gate switch (so_type) { 9067c478bd9Sstevel@tonic-gate case INETBOOT_STREAM: 9077c478bd9Sstevel@tonic-gate /* 9087c478bd9Sstevel@tonic-gate * If the message has igm_id == TCP_CALLB_MAGIC_ID, we need 9097c478bd9Sstevel@tonic-gate * to drain the data held by tcp and try again. 9107c478bd9Sstevel@tonic-gate */ 9117c478bd9Sstevel@tonic-gate if (icp->igm_id == TCP_CALLB_MAGIC_ID) { 9127c478bd9Sstevel@tonic-gate del_gram(&sockets[sock_id].inq, icp, B_TRUE); 9137c478bd9Sstevel@tonic-gate tcp_rcv_drain_sock(sock_id); 9147c478bd9Sstevel@tonic-gate goto retry; 9157c478bd9Sstevel@tonic-gate } 9167c478bd9Sstevel@tonic-gate 9177c478bd9Sstevel@tonic-gate /* TCP should put only user data in the inetgram. */ 9187c478bd9Sstevel@tonic-gate tmp_buf = (char *)buf; 9197c478bd9Sstevel@tonic-gate while (len > 0 && icp != NULL) { 9207c478bd9Sstevel@tonic-gate datalen = mp->b_wptr - mp->b_rptr; 9217c478bd9Sstevel@tonic-gate if (len < datalen) { 9227c478bd9Sstevel@tonic-gate bcopy(mp->b_rptr, tmp_buf, len); 9237c478bd9Sstevel@tonic-gate bytes += len; 9247c478bd9Sstevel@tonic-gate mp->b_rptr += len; 9257c478bd9Sstevel@tonic-gate break; 9267c478bd9Sstevel@tonic-gate } else { 9277c478bd9Sstevel@tonic-gate bcopy(mp->b_rptr, tmp_buf, datalen); 9287c478bd9Sstevel@tonic-gate len -= datalen; 9297c478bd9Sstevel@tonic-gate bytes += datalen; 9307c478bd9Sstevel@tonic-gate tmp_buf += datalen; 9317c478bd9Sstevel@tonic-gate del_gram(&sockets[sock_id].inq, icp, B_TRUE); 9327c478bd9Sstevel@tonic-gate 9337c478bd9Sstevel@tonic-gate /* 9347c478bd9Sstevel@tonic-gate * If we have any embedded magic messages just 9357c478bd9Sstevel@tonic-gate * drop them. 9367c478bd9Sstevel@tonic-gate */ 9377c478bd9Sstevel@tonic-gate while ((icp = sockets[sock_id].inq) != NULL) { 9387c478bd9Sstevel@tonic-gate if (icp->igm_id != TCP_CALLB_MAGIC_ID) 9397c478bd9Sstevel@tonic-gate break; 9407c478bd9Sstevel@tonic-gate del_gram(&sockets[sock_id].inq, icp, 9417c478bd9Sstevel@tonic-gate B_TRUE); 9427c478bd9Sstevel@tonic-gate } 9437c478bd9Sstevel@tonic-gate 9447c478bd9Sstevel@tonic-gate if (icp == NULL) 9457c478bd9Sstevel@tonic-gate break; 9467c478bd9Sstevel@tonic-gate mp = icp->igm_mp; 9477c478bd9Sstevel@tonic-gate } 9487c478bd9Sstevel@tonic-gate } 9497c478bd9Sstevel@tonic-gate sockets[sock_id].so_rcvbuf += (int32_t)bytes; 9507c478bd9Sstevel@tonic-gate break; 9517c478bd9Sstevel@tonic-gate case INETBOOT_DGRAM: 9527c478bd9Sstevel@tonic-gate datalen = mp->b_wptr - mp->b_rptr; 9537c478bd9Sstevel@tonic-gate if (len < datalen) 9547c478bd9Sstevel@tonic-gate bytes = len; 9557c478bd9Sstevel@tonic-gate else 9567c478bd9Sstevel@tonic-gate bytes = datalen; 9577c478bd9Sstevel@tonic-gate bcopy(mp->b_rptr, buf, bytes); 9587c478bd9Sstevel@tonic-gate del_gram(&sockets[sock_id].inq, icp, B_TRUE); 9597c478bd9Sstevel@tonic-gate break; 9607c478bd9Sstevel@tonic-gate case INETBOOT_RAW: 9617c478bd9Sstevel@tonic-gate default: 9627c478bd9Sstevel@tonic-gate datalen = mp->b_wptr - mp->b_rptr; 9637c478bd9Sstevel@tonic-gate if (len < datalen) 9647c478bd9Sstevel@tonic-gate bytes = len; 9657c478bd9Sstevel@tonic-gate else 9667c478bd9Sstevel@tonic-gate bytes = datalen; 9677c478bd9Sstevel@tonic-gate bcopy(mp->b_rptr, buf, bytes); 9687c478bd9Sstevel@tonic-gate del_gram(&sockets[sock_id].inq, icp, B_TRUE); 9697c478bd9Sstevel@tonic-gate break; 9707c478bd9Sstevel@tonic-gate } 9717c478bd9Sstevel@tonic-gate 9727c478bd9Sstevel@tonic-gate #ifdef DEBUG 9737c478bd9Sstevel@tonic-gate printf("recvfrom(%d): data: (0x%x,%d)\n", sock_id, 9747c478bd9Sstevel@tonic-gate (icp != NULL) ? icp->igm_mp : 0, bytes); 9757c478bd9Sstevel@tonic-gate #endif /* DEBUG */ 9767c478bd9Sstevel@tonic-gate return (bytes); 9777c478bd9Sstevel@tonic-gate } 9787c478bd9Sstevel@tonic-gate 9797c478bd9Sstevel@tonic-gate 9807c478bd9Sstevel@tonic-gate /* Just a wrapper around sendto(). */ 9817c478bd9Sstevel@tonic-gate ssize_t 9827c478bd9Sstevel@tonic-gate send(int s, const void *msg, size_t len, int flags) 9837c478bd9Sstevel@tonic-gate { 9847c478bd9Sstevel@tonic-gate return (sendto(s, msg, len, flags, NULL, 0)); 9857c478bd9Sstevel@tonic-gate } 9867c478bd9Sstevel@tonic-gate 9877c478bd9Sstevel@tonic-gate /* 9887c478bd9Sstevel@tonic-gate * Transmit a message through a socket. 9897c478bd9Sstevel@tonic-gate * 9907c478bd9Sstevel@tonic-gate * Supported flags: MSG_DONTROUTE or 0. 9917c478bd9Sstevel@tonic-gate */ 9927c478bd9Sstevel@tonic-gate ssize_t 9937c478bd9Sstevel@tonic-gate sendto(int s, const void *msg, size_t len, int flags, const struct sockaddr *to, 9947c478bd9Sstevel@tonic-gate socklen_t tolen) 9957c478bd9Sstevel@tonic-gate { 9967c478bd9Sstevel@tonic-gate enum SockType so_type; 9977c478bd9Sstevel@tonic-gate int sock_id; 9987c478bd9Sstevel@tonic-gate ssize_t bytes; 9997c478bd9Sstevel@tonic-gate 10007c478bd9Sstevel@tonic-gate errno = 0; 10017c478bd9Sstevel@tonic-gate 10027c478bd9Sstevel@tonic-gate if ((sock_id = so_check_fd(s, &errno)) == -1) { 10037c478bd9Sstevel@tonic-gate return (-1); 10047c478bd9Sstevel@tonic-gate } 10057c478bd9Sstevel@tonic-gate if (msg == NULL) { 10067c478bd9Sstevel@tonic-gate errno = EINVAL; 10077c478bd9Sstevel@tonic-gate return (-1); 10087c478bd9Sstevel@tonic-gate } 10097c478bd9Sstevel@tonic-gate so_type = sockets[sock_id].type; 10107c478bd9Sstevel@tonic-gate if ((flags & ~MSG_DONTROUTE) != 0) { 10117c478bd9Sstevel@tonic-gate errno = EINVAL; 10127c478bd9Sstevel@tonic-gate return (-1); 10137c478bd9Sstevel@tonic-gate } 10147c478bd9Sstevel@tonic-gate if (sockets[sock_id].so_error != 0) { 10157c478bd9Sstevel@tonic-gate errno = sockets[sock_id].so_error; 10167c478bd9Sstevel@tonic-gate return (-1); 10177c478bd9Sstevel@tonic-gate } 10187c478bd9Sstevel@tonic-gate if (to != NULL && to->sa_family != AF_INET) { 10197c478bd9Sstevel@tonic-gate errno = EAFNOSUPPORT; 10207c478bd9Sstevel@tonic-gate return (-1); 10217c478bd9Sstevel@tonic-gate } 10227c478bd9Sstevel@tonic-gate 10237c478bd9Sstevel@tonic-gate switch (so_type) { 10247c478bd9Sstevel@tonic-gate case INETBOOT_RAW: 10257c478bd9Sstevel@tonic-gate case INETBOOT_DGRAM: 10267c478bd9Sstevel@tonic-gate if (!(sockets[sock_id].so_state & SS_ISCONNECTED) && 10277c478bd9Sstevel@tonic-gate (to == NULL || tolen != sizeof (struct sockaddr_in))) { 10287c478bd9Sstevel@tonic-gate errno = EINVAL; 10297c478bd9Sstevel@tonic-gate return (-1); 10307c478bd9Sstevel@tonic-gate } 10317c478bd9Sstevel@tonic-gate bytes = dgram_sendto(sock_id, msg, len, flags, to, tolen); 10327c478bd9Sstevel@tonic-gate break; 10337c478bd9Sstevel@tonic-gate case INETBOOT_STREAM: 10347c478bd9Sstevel@tonic-gate if (!((sockets[sock_id].so_state & SS_ISCONNECTED) || 10357c478bd9Sstevel@tonic-gate (sockets[sock_id].so_state & SS_ISCONNECTING))) { 10367c478bd9Sstevel@tonic-gate errno = EINVAL; 10377c478bd9Sstevel@tonic-gate return (-1); 10387c478bd9Sstevel@tonic-gate } 10397c478bd9Sstevel@tonic-gate if (sockets[sock_id].so_state & SS_CANTSENDMORE) { 10407c478bd9Sstevel@tonic-gate errno = EPIPE; 10417c478bd9Sstevel@tonic-gate return (-1); 10427c478bd9Sstevel@tonic-gate } 10437c478bd9Sstevel@tonic-gate bytes = stream_sendto(sock_id, msg, len, flags); 10447c478bd9Sstevel@tonic-gate break; 10457c478bd9Sstevel@tonic-gate default: 10467c478bd9Sstevel@tonic-gate /* Should not happen... */ 10477c478bd9Sstevel@tonic-gate errno = EPROTOTYPE; 10487c478bd9Sstevel@tonic-gate return (-1); 10497c478bd9Sstevel@tonic-gate } 10507c478bd9Sstevel@tonic-gate return (bytes); 10517c478bd9Sstevel@tonic-gate } 10527c478bd9Sstevel@tonic-gate 10537c478bd9Sstevel@tonic-gate static ssize_t 10547c478bd9Sstevel@tonic-gate dgram_sendto(int i, const void *msg, size_t len, int flags, 10557c478bd9Sstevel@tonic-gate const struct sockaddr *to, int tolen) 10567c478bd9Sstevel@tonic-gate { 10577c478bd9Sstevel@tonic-gate struct inetgram oc; 10587c478bd9Sstevel@tonic-gate int l, offset; 10597c478bd9Sstevel@tonic-gate size_t tlen; 10607c478bd9Sstevel@tonic-gate mblk_t *mp; 10617c478bd9Sstevel@tonic-gate 10627c478bd9Sstevel@tonic-gate #ifdef DEBUG 10637c478bd9Sstevel@tonic-gate { 10647c478bd9Sstevel@tonic-gate struct sockaddr_in *sin = (struct sockaddr_in *)to; 10657c478bd9Sstevel@tonic-gate printf("sendto(%d): msg of length: %d sent to port %d and host: %s\n", 10667c478bd9Sstevel@tonic-gate i, len, ntohs(sin->sin_port), inet_ntoa(sin->sin_addr)); 10677c478bd9Sstevel@tonic-gate } 10687c478bd9Sstevel@tonic-gate #endif /* DEBUG */ 10697c478bd9Sstevel@tonic-gate 10707c478bd9Sstevel@tonic-gate nuke_grams(&sockets[i].inq); /* flush the input queue */ 10717c478bd9Sstevel@tonic-gate 10727c478bd9Sstevel@tonic-gate /* calculate offset for data */ 10737c478bd9Sstevel@tonic-gate offset = sockets[i].headerlen[MEDIA_LVL](NULL) + 10747c478bd9Sstevel@tonic-gate (sockets[i].headerlen[NETWORK_LVL])(NULL); 10757c478bd9Sstevel@tonic-gate 10767c478bd9Sstevel@tonic-gate bzero((caddr_t)&oc, sizeof (oc)); 10777c478bd9Sstevel@tonic-gate if (sockets[i].type != INETBOOT_RAW) { 10787c478bd9Sstevel@tonic-gate offset += (sockets[i].headerlen[TRANSPORT_LVL])(NULL); 10797c478bd9Sstevel@tonic-gate oc.igm_level = TRANSPORT_LVL; 10807c478bd9Sstevel@tonic-gate } else 10817c478bd9Sstevel@tonic-gate oc.igm_level = NETWORK_LVL; 10827c478bd9Sstevel@tonic-gate oc.igm_oflags = flags; 10837c478bd9Sstevel@tonic-gate 10847c478bd9Sstevel@tonic-gate if (to != NULL) { 10857c478bd9Sstevel@tonic-gate bcopy((caddr_t)to, (caddr_t)&oc.igm_saddr, tolen); 10867c478bd9Sstevel@tonic-gate } else { 10877c478bd9Sstevel@tonic-gate bcopy((caddr_t)&sockets[i].remote, (caddr_t)&oc.igm_saddr, 10887c478bd9Sstevel@tonic-gate sizeof (struct sockaddr_in)); 10897c478bd9Sstevel@tonic-gate } 10907c478bd9Sstevel@tonic-gate 10917c478bd9Sstevel@tonic-gate /* Get a legal source port if the socket isn't bound. */ 10927c478bd9Sstevel@tonic-gate if (sockets[i].bound == B_FALSE && 10937c478bd9Sstevel@tonic-gate ntohs(oc.igm_saddr.sin_port == 0)) { 10947c478bd9Sstevel@tonic-gate ((struct sockaddr_in *)&oc.igm_saddr)->sin_port = 10957c478bd9Sstevel@tonic-gate get_source_port(B_FALSE); 10967c478bd9Sstevel@tonic-gate } 10977c478bd9Sstevel@tonic-gate 10987c478bd9Sstevel@tonic-gate /* Round up to 16bit value for checksum purposes */ 10997c478bd9Sstevel@tonic-gate if (sockets[i].type == INETBOOT_DGRAM) { 11007c478bd9Sstevel@tonic-gate tlen = ((len + sizeof (uint16_t) - 1) & 11017c478bd9Sstevel@tonic-gate ~(sizeof (uint16_t) - 1)); 11027c478bd9Sstevel@tonic-gate } else 11037c478bd9Sstevel@tonic-gate tlen = len; 11047c478bd9Sstevel@tonic-gate 11057c478bd9Sstevel@tonic-gate if ((oc.igm_mp = allocb(tlen + offset, 0)) == NULL) { 11067c478bd9Sstevel@tonic-gate errno = ENOMEM; 11077c478bd9Sstevel@tonic-gate return (-1); 11087c478bd9Sstevel@tonic-gate } 11097c478bd9Sstevel@tonic-gate mp = oc.igm_mp; 11107c478bd9Sstevel@tonic-gate mp->b_rptr = mp->b_wptr += offset; 11117c478bd9Sstevel@tonic-gate bcopy((caddr_t)msg, mp->b_wptr, len); 11127c478bd9Sstevel@tonic-gate mp->b_wptr += len; 11137c478bd9Sstevel@tonic-gate for (l = TRANSPORT_LVL; l >= MEDIA_LVL; l--) { 11147c478bd9Sstevel@tonic-gate if (sockets[i].output[l] != NULL) { 11157c478bd9Sstevel@tonic-gate if (sockets[i].output[l](i, &oc) < 0) { 11167c478bd9Sstevel@tonic-gate freeb(mp); 11177c478bd9Sstevel@tonic-gate if (errno == 0) 11187c478bd9Sstevel@tonic-gate errno = EIO; 11197c478bd9Sstevel@tonic-gate return (-1); 11207c478bd9Sstevel@tonic-gate } 11217c478bd9Sstevel@tonic-gate } 11227c478bd9Sstevel@tonic-gate } 11237c478bd9Sstevel@tonic-gate freeb(mp); 11247c478bd9Sstevel@tonic-gate return (len); 11257c478bd9Sstevel@tonic-gate } 11267c478bd9Sstevel@tonic-gate 11277c478bd9Sstevel@tonic-gate /* ARGSUSED */ 11287c478bd9Sstevel@tonic-gate static ssize_t 11297c478bd9Sstevel@tonic-gate stream_sendto(int i, const void *msg, size_t len, int flags) 11307c478bd9Sstevel@tonic-gate { 11317c478bd9Sstevel@tonic-gate int cnt; 11327c478bd9Sstevel@tonic-gate 11337c478bd9Sstevel@tonic-gate assert(sockets[i].pcb != NULL); 11347c478bd9Sstevel@tonic-gate 11357c478bd9Sstevel@tonic-gate /* 11367c478bd9Sstevel@tonic-gate * Call directly TCP's send routine. We do this because TCP 11377c478bd9Sstevel@tonic-gate * needs to decide whether to send out the data. 11387c478bd9Sstevel@tonic-gate * 11397c478bd9Sstevel@tonic-gate * Note also that currently, TCP ignores all flags passed in for 11407c478bd9Sstevel@tonic-gate * TCP socket. 11417c478bd9Sstevel@tonic-gate */ 11427c478bd9Sstevel@tonic-gate if ((cnt = tcp_send(i, sockets[i].pcb, msg, len)) < 0) { 11437c478bd9Sstevel@tonic-gate if (sockets[i].so_error != 0) 11447c478bd9Sstevel@tonic-gate errno = sockets[i].so_error; 11457c478bd9Sstevel@tonic-gate return (-1); 11467c478bd9Sstevel@tonic-gate } else { 11477c478bd9Sstevel@tonic-gate return (cnt); 11487c478bd9Sstevel@tonic-gate } 11497c478bd9Sstevel@tonic-gate } 11507c478bd9Sstevel@tonic-gate 11517c478bd9Sstevel@tonic-gate /* 11527c478bd9Sstevel@tonic-gate * Returns ptr to the last inetgram in the list, or null if list is null 11537c478bd9Sstevel@tonic-gate */ 11547c478bd9Sstevel@tonic-gate struct inetgram * 11557c478bd9Sstevel@tonic-gate last_gram(struct inetgram *igp) 11567c478bd9Sstevel@tonic-gate { 11577c478bd9Sstevel@tonic-gate struct inetgram *wp; 11587c478bd9Sstevel@tonic-gate for (wp = igp; wp != NULL; wp = wp->igm_next) { 11597c478bd9Sstevel@tonic-gate if (wp->igm_next == NULL) 11607c478bd9Sstevel@tonic-gate return (wp); 11617c478bd9Sstevel@tonic-gate } 11627c478bd9Sstevel@tonic-gate return (NULL); 11637c478bd9Sstevel@tonic-gate } 11647c478bd9Sstevel@tonic-gate 11657c478bd9Sstevel@tonic-gate /* 11667c478bd9Sstevel@tonic-gate * Adds an inetgram or list of inetgrams to the end of the list. 11677c478bd9Sstevel@tonic-gate */ 11687c478bd9Sstevel@tonic-gate void 11697c478bd9Sstevel@tonic-gate add_grams(struct inetgram **igpp, struct inetgram *newgp) 11707c478bd9Sstevel@tonic-gate { 11717c478bd9Sstevel@tonic-gate struct inetgram *wp; 11727c478bd9Sstevel@tonic-gate 11737c478bd9Sstevel@tonic-gate if (newgp == NULL) 11747c478bd9Sstevel@tonic-gate return; 11757c478bd9Sstevel@tonic-gate 11767c478bd9Sstevel@tonic-gate if (*igpp == NULL) 11777c478bd9Sstevel@tonic-gate *igpp = newgp; 11787c478bd9Sstevel@tonic-gate else { 11797c478bd9Sstevel@tonic-gate wp = last_gram(*igpp); 11807c478bd9Sstevel@tonic-gate wp->igm_next = newgp; 11817c478bd9Sstevel@tonic-gate } 11827c478bd9Sstevel@tonic-gate } 11837c478bd9Sstevel@tonic-gate 11847c478bd9Sstevel@tonic-gate /* 11857c478bd9Sstevel@tonic-gate * Nuke a whole list of grams. 11867c478bd9Sstevel@tonic-gate */ 11877c478bd9Sstevel@tonic-gate void 11887c478bd9Sstevel@tonic-gate nuke_grams(struct inetgram **lgpp) 11897c478bd9Sstevel@tonic-gate { 11907c478bd9Sstevel@tonic-gate while (*lgpp != NULL) 11917c478bd9Sstevel@tonic-gate del_gram(lgpp, *lgpp, B_TRUE); 11927c478bd9Sstevel@tonic-gate } 11937c478bd9Sstevel@tonic-gate 11947c478bd9Sstevel@tonic-gate /* 11957c478bd9Sstevel@tonic-gate * Remove the referenced inetgram. List is altered accordingly. Destroy the 11967c478bd9Sstevel@tonic-gate * referenced inetgram if freeit is B_TRUE. 11977c478bd9Sstevel@tonic-gate */ 11987c478bd9Sstevel@tonic-gate void 11997c478bd9Sstevel@tonic-gate del_gram(struct inetgram **lgpp, struct inetgram *igp, int freeit) 12007c478bd9Sstevel@tonic-gate { 12017c478bd9Sstevel@tonic-gate struct inetgram *wp, *pp = NULL; 12027c478bd9Sstevel@tonic-gate 12037c478bd9Sstevel@tonic-gate if (lgpp == NULL || igp == NULL) 12047c478bd9Sstevel@tonic-gate return; 12057c478bd9Sstevel@tonic-gate 12067c478bd9Sstevel@tonic-gate wp = *lgpp; 12077c478bd9Sstevel@tonic-gate while (wp != NULL) { 12087c478bd9Sstevel@tonic-gate if (wp == igp) { 12097c478bd9Sstevel@tonic-gate /* detach wp from the list */ 12107c478bd9Sstevel@tonic-gate if (*lgpp == wp) 12117c478bd9Sstevel@tonic-gate *lgpp = (*lgpp)->igm_next; 12127c478bd9Sstevel@tonic-gate else 12137c478bd9Sstevel@tonic-gate pp->igm_next = wp->igm_next; 12147c478bd9Sstevel@tonic-gate igp->igm_next = NULL; 12157c478bd9Sstevel@tonic-gate 12167c478bd9Sstevel@tonic-gate if (freeit) { 12177c478bd9Sstevel@tonic-gate if (igp->igm_mp != NULL) 12187c478bd9Sstevel@tonic-gate freeb(igp->igm_mp); 12197c478bd9Sstevel@tonic-gate bkmem_free((caddr_t)igp, 12207c478bd9Sstevel@tonic-gate sizeof (struct inetgram)); 12217c478bd9Sstevel@tonic-gate } 12227c478bd9Sstevel@tonic-gate break; 12237c478bd9Sstevel@tonic-gate } 12247c478bd9Sstevel@tonic-gate pp = wp; 12257c478bd9Sstevel@tonic-gate wp = wp->igm_next; 12267c478bd9Sstevel@tonic-gate } 12277c478bd9Sstevel@tonic-gate } 12287c478bd9Sstevel@tonic-gate 12297c478bd9Sstevel@tonic-gate struct nct_t nct[] = { 12307c478bd9Sstevel@tonic-gate "bootp", NCT_BOOTP_DHCP, 12317c478bd9Sstevel@tonic-gate "dhcp", NCT_BOOTP_DHCP, 12327c478bd9Sstevel@tonic-gate "rarp", NCT_RARP_BOOTPARAMS, 12337c478bd9Sstevel@tonic-gate "manual", NCT_MANUAL 12347c478bd9Sstevel@tonic-gate }; 12357c478bd9Sstevel@tonic-gate int nct_entries = sizeof (nct) / sizeof (nct[0]); 12367c478bd9Sstevel@tonic-gate 12377c478bd9Sstevel@tonic-gate /* 12387c478bd9Sstevel@tonic-gate * Figure out from the bootpath what kind of network configuration strategy 12397c478bd9Sstevel@tonic-gate * we should use. Returns the network config strategy. 12407c478bd9Sstevel@tonic-gate */ 12417c478bd9Sstevel@tonic-gate int 12427c478bd9Sstevel@tonic-gate get_netconfig_strategy(void) 12437c478bd9Sstevel@tonic-gate { 12447c478bd9Sstevel@tonic-gate int i; 12457c478bd9Sstevel@tonic-gate #if !defined(__i386) 12467c478bd9Sstevel@tonic-gate /* sparc */ 12477c478bd9Sstevel@tonic-gate #define ISSPACE(c) (c == ' ' || c == '\t' || c == '\n' || c == '\0') 12487c478bd9Sstevel@tonic-gate char lbootpath[OBP_MAXPATHLEN]; 12497c478bd9Sstevel@tonic-gate char net_options[NCT_BUFSIZE]; 12507c478bd9Sstevel@tonic-gate char *op, *nop, *sp; 1251*fa9e4066Sahrens pnode_t cn; 12527c478bd9Sstevel@tonic-gate int proplen; 12537c478bd9Sstevel@tonic-gate 12547c478bd9Sstevel@tonic-gate /* If the PROM DHCP cache exists, we're done */ 12557c478bd9Sstevel@tonic-gate if (prom_cached_reply(B_TRUE)) 12567c478bd9Sstevel@tonic-gate return (NCT_BOOTP_DHCP); 12577c478bd9Sstevel@tonic-gate 12587c478bd9Sstevel@tonic-gate /* 12597c478bd9Sstevel@tonic-gate * Newer (version 4) PROMs will put the name in the 12607c478bd9Sstevel@tonic-gate * "net-config-strategy" property. 12617c478bd9Sstevel@tonic-gate */ 12627c478bd9Sstevel@tonic-gate cn = prom_finddevice("/chosen"); 12637c478bd9Sstevel@tonic-gate if ((proplen = prom_getproplen(cn, "net-config-strategy")) < 12647c478bd9Sstevel@tonic-gate sizeof (net_options)) { 12657c478bd9Sstevel@tonic-gate (void) prom_getprop(cn, "net-config-strategy", net_options); 12667c478bd9Sstevel@tonic-gate net_options[proplen] = '\0'; 12677c478bd9Sstevel@tonic-gate } else { 12687c478bd9Sstevel@tonic-gate 12697c478bd9Sstevel@tonic-gate /* 12707c478bd9Sstevel@tonic-gate * We're reduced to sacanning bootpath for the prototol to use. 12717c478bd9Sstevel@tonic-gate * Since there was no "net-config-strategy" property, this is 12727c478bd9Sstevel@tonic-gate * an old PROM, so we need to excise any extraneous key/value 12737c478bd9Sstevel@tonic-gate * initializations from bootpath[]. 12747c478bd9Sstevel@tonic-gate */ 12757c478bd9Sstevel@tonic-gate for (op = prom_bootpath(), sp = lbootpath; op != NULL && 12767c478bd9Sstevel@tonic-gate !ISSPACE(*op); sp++, op++) 12777c478bd9Sstevel@tonic-gate *sp = *op; 12787c478bd9Sstevel@tonic-gate *sp = '\0'; 12797c478bd9Sstevel@tonic-gate /* find the last '/' (in the device path) */ 12807c478bd9Sstevel@tonic-gate if ((op = strrchr(lbootpath, '/')) == NULL) /* last '/' */ 12817c478bd9Sstevel@tonic-gate op = lbootpath; 12827c478bd9Sstevel@tonic-gate else 12837c478bd9Sstevel@tonic-gate op++; 12847c478bd9Sstevel@tonic-gate /* then look for the ':' separating it from the protocol */ 12857c478bd9Sstevel@tonic-gate while (*op != ':' && *op != '\0') 12867c478bd9Sstevel@tonic-gate op++; 12877c478bd9Sstevel@tonic-gate 12887c478bd9Sstevel@tonic-gate if (*op == ':') { 12897c478bd9Sstevel@tonic-gate for (nop = net_options, op++; 12907c478bd9Sstevel@tonic-gate *op != '\0' && *op != '/' && !ISSPACE(*op) && 12917c478bd9Sstevel@tonic-gate nop < &net_options[NCT_BUFSIZE]; nop++, op++) 12927c478bd9Sstevel@tonic-gate *nop = *op; 12937c478bd9Sstevel@tonic-gate *nop = '\0'; 12947c478bd9Sstevel@tonic-gate } else 12957c478bd9Sstevel@tonic-gate net_options[0] = '\0'; 12967c478bd9Sstevel@tonic-gate } 12977c478bd9Sstevel@tonic-gate 12987c478bd9Sstevel@tonic-gate #undef ISSPACE 12997c478bd9Sstevel@tonic-gate #else 13007c478bd9Sstevel@tonic-gate /* i86 */ 13017c478bd9Sstevel@tonic-gate extern struct bootops bootops; 13027c478bd9Sstevel@tonic-gate extern int bgetprop(struct bootops *, char *, caddr_t, int, phandle_t); 13037c478bd9Sstevel@tonic-gate char net_options[MAXNAMELEN]; 13047c478bd9Sstevel@tonic-gate 13057c478bd9Sstevel@tonic-gate /* 13067c478bd9Sstevel@tonic-gate * Look at net-config-strategy boot property to determine what protocol 13077c478bd9Sstevel@tonic-gate * will be used. 13087c478bd9Sstevel@tonic-gate */ 13097c478bd9Sstevel@tonic-gate (void) bgetprop(&bootops, "net-config-strategy", net_options, 13107c478bd9Sstevel@tonic-gate sizeof (net_options), 0); 13117c478bd9Sstevel@tonic-gate 13127c478bd9Sstevel@tonic-gate #endif /* __i386 */ 13137c478bd9Sstevel@tonic-gate 13147c478bd9Sstevel@tonic-gate for (i = 0; i < nct_entries; i++) 13157c478bd9Sstevel@tonic-gate if (strcmp(net_options, nct[i].p_name) == 0) 13167c478bd9Sstevel@tonic-gate return (nct[i].p_id); 13177c478bd9Sstevel@tonic-gate 13187c478bd9Sstevel@tonic-gate return (NCT_DEFAULT); 13197c478bd9Sstevel@tonic-gate } 13207c478bd9Sstevel@tonic-gate 13217c478bd9Sstevel@tonic-gate /* Modified STREAM routines for ease of porting core TCP code. */ 13227c478bd9Sstevel@tonic-gate 13237c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 13247c478bd9Sstevel@tonic-gate mblk_t * 13257c478bd9Sstevel@tonic-gate allocb(size_t size, uint_t pri) 13267c478bd9Sstevel@tonic-gate { 13277c478bd9Sstevel@tonic-gate unsigned char *base; 13287c478bd9Sstevel@tonic-gate mblk_t *mp; 13297c478bd9Sstevel@tonic-gate 13307c478bd9Sstevel@tonic-gate if ((mp = (mblk_t *)bkmem_zalloc(sizeof (mblk_t))) == NULL) 13317c478bd9Sstevel@tonic-gate return (NULL); 13327c478bd9Sstevel@tonic-gate if ((base = (unsigned char *)bkmem_zalloc(size)) == NULL) 13337c478bd9Sstevel@tonic-gate return (NULL); 13347c478bd9Sstevel@tonic-gate 13357c478bd9Sstevel@tonic-gate mp->b_next = mp->b_prev = mp->b_cont = NULL; 13367c478bd9Sstevel@tonic-gate mp->b_rptr = mp->b_wptr = mp->b_datap = (unsigned char *)base; 13377c478bd9Sstevel@tonic-gate mp->b_size = size; 13387c478bd9Sstevel@tonic-gate 13397c478bd9Sstevel@tonic-gate return (mp); 13407c478bd9Sstevel@tonic-gate } 13417c478bd9Sstevel@tonic-gate 13427c478bd9Sstevel@tonic-gate void 13437c478bd9Sstevel@tonic-gate freeb(mblk_t *mp) 13447c478bd9Sstevel@tonic-gate { 13457c478bd9Sstevel@tonic-gate #ifdef DEBUG 13467c478bd9Sstevel@tonic-gate printf("freeb datap %x\n", mp->b_datap); 13477c478bd9Sstevel@tonic-gate #endif 13487c478bd9Sstevel@tonic-gate bkmem_free((caddr_t)(mp->b_datap), mp->b_size); 13497c478bd9Sstevel@tonic-gate #ifdef DEBUG 13507c478bd9Sstevel@tonic-gate printf("freeb mp %x\n", mp); 13517c478bd9Sstevel@tonic-gate #endif 13527c478bd9Sstevel@tonic-gate bkmem_free((caddr_t)mp, sizeof (mblk_t)); 13537c478bd9Sstevel@tonic-gate } 13547c478bd9Sstevel@tonic-gate 13557c478bd9Sstevel@tonic-gate void 13567c478bd9Sstevel@tonic-gate freemsg(mblk_t *mp) 13577c478bd9Sstevel@tonic-gate { 13587c478bd9Sstevel@tonic-gate while (mp) { 13597c478bd9Sstevel@tonic-gate mblk_t *mp_cont = mp->b_cont; 13607c478bd9Sstevel@tonic-gate 13617c478bd9Sstevel@tonic-gate freeb(mp); 13627c478bd9Sstevel@tonic-gate mp = mp_cont; 13637c478bd9Sstevel@tonic-gate } 13647c478bd9Sstevel@tonic-gate } 13657c478bd9Sstevel@tonic-gate 13667c478bd9Sstevel@tonic-gate mblk_t * 13677c478bd9Sstevel@tonic-gate copyb(mblk_t *bp) 13687c478bd9Sstevel@tonic-gate { 13697c478bd9Sstevel@tonic-gate mblk_t *nbp; 13707c478bd9Sstevel@tonic-gate unsigned char *ndp; 13717c478bd9Sstevel@tonic-gate 13727c478bd9Sstevel@tonic-gate assert((uintptr_t)(bp->b_wptr - bp->b_rptr) >= 0); 13737c478bd9Sstevel@tonic-gate 13747c478bd9Sstevel@tonic-gate if (!(nbp = allocb(bp->b_size, 0))) 13757c478bd9Sstevel@tonic-gate return (NULL); 13767c478bd9Sstevel@tonic-gate nbp->b_cont = NULL; 13777c478bd9Sstevel@tonic-gate ndp = nbp->b_datap; 13787c478bd9Sstevel@tonic-gate 13797c478bd9Sstevel@tonic-gate nbp->b_rptr = ndp + (bp->b_rptr - bp->b_datap); 13807c478bd9Sstevel@tonic-gate nbp->b_wptr = nbp->b_rptr + (bp->b_wptr - bp->b_rptr); 13817c478bd9Sstevel@tonic-gate bcopy(bp->b_datap, nbp->b_datap, bp->b_size); 13827c478bd9Sstevel@tonic-gate return (nbp); 13837c478bd9Sstevel@tonic-gate } 13847c478bd9Sstevel@tonic-gate 13857c478bd9Sstevel@tonic-gate /* To simplify things, dupb() is implemented as copyb(). */ 13867c478bd9Sstevel@tonic-gate mblk_t * 13877c478bd9Sstevel@tonic-gate dupb(mblk_t *mp) 13887c478bd9Sstevel@tonic-gate { 13897c478bd9Sstevel@tonic-gate return (copyb(mp)); 13907c478bd9Sstevel@tonic-gate } 13917c478bd9Sstevel@tonic-gate 13927c478bd9Sstevel@tonic-gate /* 13937c478bd9Sstevel@tonic-gate * get number of data bytes in message 13947c478bd9Sstevel@tonic-gate */ 13957c478bd9Sstevel@tonic-gate size_t 13967c478bd9Sstevel@tonic-gate msgdsize(mblk_t *bp) 13977c478bd9Sstevel@tonic-gate { 13987c478bd9Sstevel@tonic-gate size_t count = 0; 13997c478bd9Sstevel@tonic-gate 14007c478bd9Sstevel@tonic-gate for (; bp != NULL; bp = bp->b_cont) { 14017c478bd9Sstevel@tonic-gate assert(bp->b_wptr >= bp->b_rptr); 14027c478bd9Sstevel@tonic-gate count += bp->b_wptr - bp->b_rptr; 14037c478bd9Sstevel@tonic-gate } 14047c478bd9Sstevel@tonic-gate return (count); 14057c478bd9Sstevel@tonic-gate } 1406