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 52caf0dcdSrshoaib * Common Development and Distribution License (the "License"). 62caf0dcdSrshoaib * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 212caf0dcdSrshoaib 227c478bd9Sstevel@tonic-gate /* 23*56f33205SJonathan Adams * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #include <sys/types.h> 287c478bd9Sstevel@tonic-gate #include <sys/t_lock.h> 297c478bd9Sstevel@tonic-gate #include <sys/param.h> 307c478bd9Sstevel@tonic-gate #include <sys/systm.h> 317c478bd9Sstevel@tonic-gate #include <sys/buf.h> 327c478bd9Sstevel@tonic-gate #include <sys/conf.h> 337c478bd9Sstevel@tonic-gate #include <sys/cred.h> 347c478bd9Sstevel@tonic-gate #include <sys/kmem.h> 357c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h> 367c478bd9Sstevel@tonic-gate #include <sys/vfs.h> 37aa59c4cbSrsb #include <sys/vfs_opreg.h> 387c478bd9Sstevel@tonic-gate #include <sys/vnode.h> 397c478bd9Sstevel@tonic-gate #include <sys/debug.h> 407c478bd9Sstevel@tonic-gate #include <sys/errno.h> 417c478bd9Sstevel@tonic-gate #include <sys/time.h> 427c478bd9Sstevel@tonic-gate #include <sys/file.h> 437c478bd9Sstevel@tonic-gate #include <sys/open.h> 447c478bd9Sstevel@tonic-gate #include <sys/user.h> 457c478bd9Sstevel@tonic-gate #include <sys/termios.h> 467c478bd9Sstevel@tonic-gate #include <sys/stream.h> 477c478bd9Sstevel@tonic-gate #include <sys/strsubr.h> 487c478bd9Sstevel@tonic-gate #include <sys/strsun.h> 497c478bd9Sstevel@tonic-gate #include <sys/esunddi.h> 507c478bd9Sstevel@tonic-gate #include <sys/flock.h> 517c478bd9Sstevel@tonic-gate #include <sys/modctl.h> 527c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h> 537c478bd9Sstevel@tonic-gate #include <sys/mkdev.h> 547c478bd9Sstevel@tonic-gate #include <sys/pathname.h> 557c478bd9Sstevel@tonic-gate #include <sys/ddi.h> 567c478bd9Sstevel@tonic-gate #include <sys/stat.h> 577c478bd9Sstevel@tonic-gate #include <sys/fs/snode.h> 587c478bd9Sstevel@tonic-gate #include <sys/fs/dv_node.h> 597c478bd9Sstevel@tonic-gate #include <sys/zone.h> 607c478bd9Sstevel@tonic-gate 617c478bd9Sstevel@tonic-gate #include <sys/socket.h> 627c478bd9Sstevel@tonic-gate #include <sys/socketvar.h> 637c478bd9Sstevel@tonic-gate #include <netinet/in.h> 647c478bd9Sstevel@tonic-gate #include <sys/un.h> 657c478bd9Sstevel@tonic-gate 667c478bd9Sstevel@tonic-gate #include <sys/ucred.h> 677c478bd9Sstevel@tonic-gate 687c478bd9Sstevel@tonic-gate #include <sys/tiuser.h> 697c478bd9Sstevel@tonic-gate #define _SUN_TPI_VERSION 2 707c478bd9Sstevel@tonic-gate #include <sys/tihdr.h> 717c478bd9Sstevel@tonic-gate 727c478bd9Sstevel@tonic-gate #include <c2/audit.h> 737c478bd9Sstevel@tonic-gate 747c478bd9Sstevel@tonic-gate #include <fs/sockfs/nl7c.h> 750f1702c5SYu Xiangning #include <fs/sockfs/sockcommon.h> 760f1702c5SYu Xiangning #include <fs/sockfs/socktpi.h> 770f1702c5SYu Xiangning #include <fs/sockfs/socktpi_impl.h> 78bbc000e5SAnders Persson #include <fs/sockfs/sodirect.h> 797c478bd9Sstevel@tonic-gate 807c478bd9Sstevel@tonic-gate /* 817c478bd9Sstevel@tonic-gate * Macros that operate on struct cmsghdr. 827c478bd9Sstevel@tonic-gate * The CMSG_VALID macro does not assume that the last option buffer is padded. 837c478bd9Sstevel@tonic-gate */ 847c478bd9Sstevel@tonic-gate #define CMSG_CONTENT(cmsg) (&((cmsg)[1])) 857c478bd9Sstevel@tonic-gate #define CMSG_CONTENTLEN(cmsg) ((cmsg)->cmsg_len - sizeof (struct cmsghdr)) 867c478bd9Sstevel@tonic-gate #define CMSG_VALID(cmsg, start, end) \ 877c478bd9Sstevel@tonic-gate (ISALIGNED_cmsghdr(cmsg) && \ 887c478bd9Sstevel@tonic-gate ((uintptr_t)(cmsg) >= (uintptr_t)(start)) && \ 897c478bd9Sstevel@tonic-gate ((uintptr_t)(cmsg) < (uintptr_t)(end)) && \ 907c478bd9Sstevel@tonic-gate ((ssize_t)(cmsg)->cmsg_len >= sizeof (struct cmsghdr)) && \ 917c478bd9Sstevel@tonic-gate ((uintptr_t)(cmsg) + (cmsg)->cmsg_len <= (uintptr_t)(end))) 927c478bd9Sstevel@tonic-gate #define SO_LOCK_WAKEUP_TIME 3000 /* Wakeup time in milliseconds */ 937c478bd9Sstevel@tonic-gate 947c478bd9Sstevel@tonic-gate dev_t sockdev; /* For fsid in getattr */ 956cefaae1SJack Meng int sockfs_defer_nl7c_init = 0; 967c478bd9Sstevel@tonic-gate 977c478bd9Sstevel@tonic-gate struct socklist socklist; 987c478bd9Sstevel@tonic-gate 990f1702c5SYu Xiangning struct kmem_cache *socket_cache; 1000f1702c5SYu Xiangning 1017c478bd9Sstevel@tonic-gate static int sockfs_update(kstat_t *, int); 1027c478bd9Sstevel@tonic-gate static int sockfs_snapshot(kstat_t *, void *, int); 1030f1702c5SYu Xiangning extern smod_info_t *sotpi_smod_create(void); 1047c478bd9Sstevel@tonic-gate 1057c478bd9Sstevel@tonic-gate extern void sendfile_init(); 1067c478bd9Sstevel@tonic-gate 1077c478bd9Sstevel@tonic-gate extern void nl7c_init(void); 1087c478bd9Sstevel@tonic-gate 1096cefaae1SJack Meng extern int modrootloaded; 1106cefaae1SJack Meng 1117c478bd9Sstevel@tonic-gate #define ADRSTRLEN (2 * sizeof (void *) + 1) 1127c478bd9Sstevel@tonic-gate /* 1137c478bd9Sstevel@tonic-gate * kernel structure for passing the sockinfo data back up to the user. 1147c478bd9Sstevel@tonic-gate * the strings array allows us to convert AF_UNIX addresses into strings 1157c478bd9Sstevel@tonic-gate * with a common method regardless of which n-bit kernel we're running. 1167c478bd9Sstevel@tonic-gate */ 1177c478bd9Sstevel@tonic-gate struct k_sockinfo { 1187c478bd9Sstevel@tonic-gate struct sockinfo ks_si; 1197c478bd9Sstevel@tonic-gate char ks_straddr[3][ADRSTRLEN]; 1207c478bd9Sstevel@tonic-gate }; 1217c478bd9Sstevel@tonic-gate 1227c478bd9Sstevel@tonic-gate /* 1237c478bd9Sstevel@tonic-gate * Translate from a device pathname (e.g. "/dev/tcp") to a vnode. 1247c478bd9Sstevel@tonic-gate * Returns with the vnode held. 1257c478bd9Sstevel@tonic-gate */ 1260f1702c5SYu Xiangning int 1277c478bd9Sstevel@tonic-gate sogetvp(char *devpath, vnode_t **vpp, int uioflag) 1287c478bd9Sstevel@tonic-gate { 1297c478bd9Sstevel@tonic-gate struct snode *csp; 1307c478bd9Sstevel@tonic-gate vnode_t *vp, *dvp; 1317c478bd9Sstevel@tonic-gate major_t maj; 1327c478bd9Sstevel@tonic-gate int error; 1337c478bd9Sstevel@tonic-gate 1347c478bd9Sstevel@tonic-gate ASSERT(uioflag == UIO_SYSSPACE || uioflag == UIO_USERSPACE); 1350f1702c5SYu Xiangning 1367c478bd9Sstevel@tonic-gate /* 1377c478bd9Sstevel@tonic-gate * Lookup the underlying filesystem vnode. 1387c478bd9Sstevel@tonic-gate */ 1397c478bd9Sstevel@tonic-gate error = lookupname(devpath, uioflag, FOLLOW, NULLVPP, &vp); 1407c478bd9Sstevel@tonic-gate if (error) 1417c478bd9Sstevel@tonic-gate return (error); 1427c478bd9Sstevel@tonic-gate 1437c478bd9Sstevel@tonic-gate /* Check that it is the correct vnode */ 1447c478bd9Sstevel@tonic-gate if (vp->v_type != VCHR) { 1457c478bd9Sstevel@tonic-gate VN_RELE(vp); 1467c478bd9Sstevel@tonic-gate return (ENOTSOCK); 1477c478bd9Sstevel@tonic-gate } 1487c478bd9Sstevel@tonic-gate 1497c478bd9Sstevel@tonic-gate /* 1507c478bd9Sstevel@tonic-gate * If devpath went through devfs, the device should already 1517c478bd9Sstevel@tonic-gate * be configured. If devpath is a mknod file, however, we 1527c478bd9Sstevel@tonic-gate * need to make sure the device is properly configured. 1537c478bd9Sstevel@tonic-gate * To do this, we do something similar to spec_open() 1547c478bd9Sstevel@tonic-gate * except that we resolve to the minor/leaf level since 1557c478bd9Sstevel@tonic-gate * we need to return a vnode. 1567c478bd9Sstevel@tonic-gate */ 1577c478bd9Sstevel@tonic-gate csp = VTOS(VTOS(vp)->s_commonvp); 1587c478bd9Sstevel@tonic-gate if (!(csp->s_flag & SDIPSET)) { 1597c478bd9Sstevel@tonic-gate char *pathname = kmem_alloc(MAXPATHLEN, KM_SLEEP); 1607c478bd9Sstevel@tonic-gate error = ddi_dev_pathname(vp->v_rdev, S_IFCHR, pathname); 1617c478bd9Sstevel@tonic-gate if (error == 0) 1627c478bd9Sstevel@tonic-gate error = devfs_lookupname(pathname, NULLVPP, &dvp); 1637c478bd9Sstevel@tonic-gate VN_RELE(vp); 1647c478bd9Sstevel@tonic-gate kmem_free(pathname, MAXPATHLEN); 1657c478bd9Sstevel@tonic-gate if (error != 0) 1667c478bd9Sstevel@tonic-gate return (ENXIO); 1677c478bd9Sstevel@tonic-gate vp = dvp; /* use the devfs vp */ 1687c478bd9Sstevel@tonic-gate } 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate /* device is configured at this point */ 1717c478bd9Sstevel@tonic-gate maj = getmajor(vp->v_rdev); 1727c478bd9Sstevel@tonic-gate if (!STREAMSTAB(maj)) { 1737c478bd9Sstevel@tonic-gate VN_RELE(vp); 1747c478bd9Sstevel@tonic-gate return (ENOSTR); 1757c478bd9Sstevel@tonic-gate } 1767c478bd9Sstevel@tonic-gate 1777c478bd9Sstevel@tonic-gate *vpp = vp; 1787c478bd9Sstevel@tonic-gate return (0); 1797c478bd9Sstevel@tonic-gate } 1807c478bd9Sstevel@tonic-gate 1817c478bd9Sstevel@tonic-gate /* 1827c478bd9Sstevel@tonic-gate * Update the accessed, updated, or changed times in an sonode 1837c478bd9Sstevel@tonic-gate * with the current time. 1847c478bd9Sstevel@tonic-gate * 1857c478bd9Sstevel@tonic-gate * Note that both SunOS 4.X and 4.4BSD sockets do not present reasonable 1867c478bd9Sstevel@tonic-gate * attributes in a fstat call. (They return the current time and 0 for 1877c478bd9Sstevel@tonic-gate * all timestamps, respectively.) We maintain the current timestamps 1887c478bd9Sstevel@tonic-gate * here primarily so that should sockmod be popped the resulting 1897c478bd9Sstevel@tonic-gate * file descriptor will behave like a stream w.r.t. the timestamps. 1907c478bd9Sstevel@tonic-gate */ 1917c478bd9Sstevel@tonic-gate void 1927c478bd9Sstevel@tonic-gate so_update_attrs(struct sonode *so, int flag) 1937c478bd9Sstevel@tonic-gate { 1947c478bd9Sstevel@tonic-gate time_t now = gethrestime_sec(); 1957c478bd9Sstevel@tonic-gate 1960f1702c5SYu Xiangning if (SOCK_IS_NONSTR(so)) 1970f1702c5SYu Xiangning return; 1980f1702c5SYu Xiangning 1997c478bd9Sstevel@tonic-gate mutex_enter(&so->so_lock); 2007c478bd9Sstevel@tonic-gate so->so_flag |= flag; 2017c478bd9Sstevel@tonic-gate if (flag & SOACC) 2020f1702c5SYu Xiangning SOTOTPI(so)->sti_atime = now; 2037c478bd9Sstevel@tonic-gate if (flag & SOMOD) 2040f1702c5SYu Xiangning SOTOTPI(so)->sti_mtime = now; 2057c478bd9Sstevel@tonic-gate mutex_exit(&so->so_lock); 2067c478bd9Sstevel@tonic-gate } 2077c478bd9Sstevel@tonic-gate 2080f1702c5SYu Xiangning extern so_create_func_t sock_comm_create_function; 2090f1702c5SYu Xiangning extern so_destroy_func_t sock_comm_destroy_function; 2107c478bd9Sstevel@tonic-gate /* 2117c478bd9Sstevel@tonic-gate * Init function called when sockfs is loaded. 2127c478bd9Sstevel@tonic-gate */ 2137c478bd9Sstevel@tonic-gate int 2147c478bd9Sstevel@tonic-gate sockinit(int fstype, char *name) 2157c478bd9Sstevel@tonic-gate { 2167c478bd9Sstevel@tonic-gate static const fs_operation_def_t sock_vfsops_template[] = { 2177c478bd9Sstevel@tonic-gate NULL, NULL 2187c478bd9Sstevel@tonic-gate }; 2197c478bd9Sstevel@tonic-gate int error; 2207c478bd9Sstevel@tonic-gate major_t dev; 2217c478bd9Sstevel@tonic-gate char *err_str; 2227c478bd9Sstevel@tonic-gate 2237c478bd9Sstevel@tonic-gate error = vfs_setfsops(fstype, sock_vfsops_template, NULL); 2247c478bd9Sstevel@tonic-gate if (error != 0) { 2252caf0dcdSrshoaib zcmn_err(GLOBAL_ZONEID, CE_WARN, 2262caf0dcdSrshoaib "sockinit: bad vfs ops template"); 2277c478bd9Sstevel@tonic-gate return (error); 2287c478bd9Sstevel@tonic-gate } 2297c478bd9Sstevel@tonic-gate 2300f1702c5SYu Xiangning error = vn_make_ops(name, socket_vnodeops_template, 2310f1702c5SYu Xiangning &socket_vnodeops); 2327c478bd9Sstevel@tonic-gate if (error != 0) { 2330f1702c5SYu Xiangning err_str = "sockinit: bad socket vnode ops template"; 2347c478bd9Sstevel@tonic-gate /* vn_make_ops() does not reset socktpi_vnodeops on failure. */ 2350f1702c5SYu Xiangning socket_vnodeops = NULL; 2367c478bd9Sstevel@tonic-gate goto failure; 2377c478bd9Sstevel@tonic-gate } 2387c478bd9Sstevel@tonic-gate 2390f1702c5SYu Xiangning socket_cache = kmem_cache_create("socket_cache", 2400f1702c5SYu Xiangning sizeof (struct sonode), 0, sonode_constructor, 2410f1702c5SYu Xiangning sonode_destructor, NULL, NULL, NULL, 0); 2427c478bd9Sstevel@tonic-gate 2430f1702c5SYu Xiangning error = socktpi_init(); 24474e20cfeSnh145002 if (error != 0) { 24574e20cfeSnh145002 err_str = NULL; 24674e20cfeSnh145002 goto failure; 24774e20cfeSnh145002 } 24874e20cfeSnh145002 249bbc000e5SAnders Persson error = sod_init(); 25017169044Sbrutus if (error != 0) { 25117169044Sbrutus err_str = NULL; 25217169044Sbrutus goto failure; 25317169044Sbrutus } 25417169044Sbrutus 2557c478bd9Sstevel@tonic-gate /* 2560f1702c5SYu Xiangning * Set up the default create and destroy functions 2577c478bd9Sstevel@tonic-gate */ 2580f1702c5SYu Xiangning sock_comm_create_function = socket_sonode_create; 2590f1702c5SYu Xiangning sock_comm_destroy_function = socket_sonode_destroy; 2607c478bd9Sstevel@tonic-gate 2617c478bd9Sstevel@tonic-gate /* 2627c478bd9Sstevel@tonic-gate * Build initial list mapping socket parameters to vnode. 2637c478bd9Sstevel@tonic-gate */ 2640f1702c5SYu Xiangning smod_init(); 2650f1702c5SYu Xiangning smod_add(sotpi_smod_create()); 2660f1702c5SYu Xiangning 2670f1702c5SYu Xiangning sockparams_init(); 2687c478bd9Sstevel@tonic-gate 2697c478bd9Sstevel@tonic-gate /* 2707c478bd9Sstevel@tonic-gate * If sockets are needed before init runs /sbin/soconfig 2717c478bd9Sstevel@tonic-gate * it is possible to preload the sockparams list here using 2727c478bd9Sstevel@tonic-gate * calls like: 2737c478bd9Sstevel@tonic-gate * sockconfig(1,2,3, "/dev/tcp", 0); 2747c478bd9Sstevel@tonic-gate */ 2757c478bd9Sstevel@tonic-gate 2767c478bd9Sstevel@tonic-gate /* 2777c478bd9Sstevel@tonic-gate * Create a unique dev_t for use in so_fsid. 2787c478bd9Sstevel@tonic-gate */ 2797c478bd9Sstevel@tonic-gate 2807c478bd9Sstevel@tonic-gate if ((dev = getudev()) == (major_t)-1) 2817c478bd9Sstevel@tonic-gate dev = 0; 2827c478bd9Sstevel@tonic-gate sockdev = makedevice(dev, 0); 2837c478bd9Sstevel@tonic-gate 2847c478bd9Sstevel@tonic-gate mutex_init(&socklist.sl_lock, NULL, MUTEX_DEFAULT, NULL); 2857c478bd9Sstevel@tonic-gate sendfile_init(); 2866cefaae1SJack Meng if (!modrootloaded) { 2876cefaae1SJack Meng sockfs_defer_nl7c_init = 1; 2886cefaae1SJack Meng } else { 2897c478bd9Sstevel@tonic-gate nl7c_init(); 2906cefaae1SJack Meng } 2917c478bd9Sstevel@tonic-gate 2927c478bd9Sstevel@tonic-gate return (0); 2937c478bd9Sstevel@tonic-gate 2947c478bd9Sstevel@tonic-gate failure: 2957c478bd9Sstevel@tonic-gate (void) vfs_freevfsops_by_type(fstype); 2960f1702c5SYu Xiangning if (socket_vnodeops != NULL) 2970f1702c5SYu Xiangning vn_freevnodeops(socket_vnodeops); 2987c478bd9Sstevel@tonic-gate if (err_str != NULL) 2992caf0dcdSrshoaib zcmn_err(GLOBAL_ZONEID, CE_WARN, err_str); 3007c478bd9Sstevel@tonic-gate return (error); 3017c478bd9Sstevel@tonic-gate } 3027c478bd9Sstevel@tonic-gate 3037c478bd9Sstevel@tonic-gate /* 3047c478bd9Sstevel@tonic-gate * Caller must hold the mutex. Used to set SOLOCKED. 3057c478bd9Sstevel@tonic-gate */ 3067c478bd9Sstevel@tonic-gate void 3077c478bd9Sstevel@tonic-gate so_lock_single(struct sonode *so) 3087c478bd9Sstevel@tonic-gate { 3097c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 3107c478bd9Sstevel@tonic-gate 3117c478bd9Sstevel@tonic-gate while (so->so_flag & (SOLOCKED | SOASYNC_UNBIND)) { 3127c478bd9Sstevel@tonic-gate so->so_flag |= SOWANT; 3137c478bd9Sstevel@tonic-gate cv_wait_stop(&so->so_want_cv, &so->so_lock, 3147c478bd9Sstevel@tonic-gate SO_LOCK_WAKEUP_TIME); 3157c478bd9Sstevel@tonic-gate } 3167c478bd9Sstevel@tonic-gate so->so_flag |= SOLOCKED; 3177c478bd9Sstevel@tonic-gate } 3187c478bd9Sstevel@tonic-gate 3197c478bd9Sstevel@tonic-gate /* 3207c478bd9Sstevel@tonic-gate * Caller must hold the mutex and pass in SOLOCKED or SOASYNC_UNBIND. 3217c478bd9Sstevel@tonic-gate * Used to clear SOLOCKED or SOASYNC_UNBIND. 3227c478bd9Sstevel@tonic-gate */ 3237c478bd9Sstevel@tonic-gate void 3247c478bd9Sstevel@tonic-gate so_unlock_single(struct sonode *so, int flag) 3257c478bd9Sstevel@tonic-gate { 3267c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 3277c478bd9Sstevel@tonic-gate ASSERT(flag & (SOLOCKED|SOASYNC_UNBIND)); 3287c478bd9Sstevel@tonic-gate ASSERT((flag & ~(SOLOCKED|SOASYNC_UNBIND)) == 0); 3297c478bd9Sstevel@tonic-gate ASSERT(so->so_flag & flag); 3307c478bd9Sstevel@tonic-gate /* 3310f1702c5SYu Xiangning * Process the T_DISCON_IND on sti_discon_ind_mp. 3327c478bd9Sstevel@tonic-gate * 3337c478bd9Sstevel@tonic-gate * Call to so_drain_discon_ind will result in so_lock 3347c478bd9Sstevel@tonic-gate * being dropped and re-acquired later. 3357c478bd9Sstevel@tonic-gate */ 3360f1702c5SYu Xiangning if (!SOCK_IS_NONSTR(so)) { 3370f1702c5SYu Xiangning sotpi_info_t *sti = SOTOTPI(so); 3380f1702c5SYu Xiangning 3390f1702c5SYu Xiangning if (sti->sti_discon_ind_mp != NULL) 3407c478bd9Sstevel@tonic-gate so_drain_discon_ind(so); 3410f1702c5SYu Xiangning } 3427c478bd9Sstevel@tonic-gate 3437c478bd9Sstevel@tonic-gate if (so->so_flag & SOWANT) 3447c478bd9Sstevel@tonic-gate cv_broadcast(&so->so_want_cv); 3457c478bd9Sstevel@tonic-gate so->so_flag &= ~(SOWANT|flag); 3467c478bd9Sstevel@tonic-gate } 3477c478bd9Sstevel@tonic-gate 3487c478bd9Sstevel@tonic-gate /* 3497c478bd9Sstevel@tonic-gate * Caller must hold the mutex. Used to set SOREADLOCKED. 3507c478bd9Sstevel@tonic-gate * If the caller wants nonblocking behavior it should set fmode. 3517c478bd9Sstevel@tonic-gate */ 3527c478bd9Sstevel@tonic-gate int 3537c478bd9Sstevel@tonic-gate so_lock_read(struct sonode *so, int fmode) 3547c478bd9Sstevel@tonic-gate { 3557c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 3567c478bd9Sstevel@tonic-gate 3577c478bd9Sstevel@tonic-gate while (so->so_flag & SOREADLOCKED) { 3587c478bd9Sstevel@tonic-gate if (fmode & (FNDELAY|FNONBLOCK)) 3597c478bd9Sstevel@tonic-gate return (EWOULDBLOCK); 3607c478bd9Sstevel@tonic-gate so->so_flag |= SOWANT; 3617c478bd9Sstevel@tonic-gate cv_wait_stop(&so->so_want_cv, &so->so_lock, 3627c478bd9Sstevel@tonic-gate SO_LOCK_WAKEUP_TIME); 3637c478bd9Sstevel@tonic-gate } 3647c478bd9Sstevel@tonic-gate so->so_flag |= SOREADLOCKED; 3657c478bd9Sstevel@tonic-gate return (0); 3667c478bd9Sstevel@tonic-gate } 3677c478bd9Sstevel@tonic-gate 3687c478bd9Sstevel@tonic-gate /* 3697c478bd9Sstevel@tonic-gate * Like so_lock_read above but allows signals. 3707c478bd9Sstevel@tonic-gate */ 3717c478bd9Sstevel@tonic-gate int 3727c478bd9Sstevel@tonic-gate so_lock_read_intr(struct sonode *so, int fmode) 3737c478bd9Sstevel@tonic-gate { 3747c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 3757c478bd9Sstevel@tonic-gate 3767c478bd9Sstevel@tonic-gate while (so->so_flag & SOREADLOCKED) { 3777c478bd9Sstevel@tonic-gate if (fmode & (FNDELAY|FNONBLOCK)) 3787c478bd9Sstevel@tonic-gate return (EWOULDBLOCK); 3797c478bd9Sstevel@tonic-gate so->so_flag |= SOWANT; 3807c478bd9Sstevel@tonic-gate if (!cv_wait_sig(&so->so_want_cv, &so->so_lock)) 3817c478bd9Sstevel@tonic-gate return (EINTR); 3827c478bd9Sstevel@tonic-gate } 3837c478bd9Sstevel@tonic-gate so->so_flag |= SOREADLOCKED; 3847c478bd9Sstevel@tonic-gate return (0); 3857c478bd9Sstevel@tonic-gate } 3867c478bd9Sstevel@tonic-gate 3877c478bd9Sstevel@tonic-gate /* 3887c478bd9Sstevel@tonic-gate * Caller must hold the mutex. Used to clear SOREADLOCKED, 3897c478bd9Sstevel@tonic-gate * set in so_lock_read() or so_lock_read_intr(). 3907c478bd9Sstevel@tonic-gate */ 3917c478bd9Sstevel@tonic-gate void 3927c478bd9Sstevel@tonic-gate so_unlock_read(struct sonode *so) 3937c478bd9Sstevel@tonic-gate { 3947c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 3957c478bd9Sstevel@tonic-gate ASSERT(so->so_flag & SOREADLOCKED); 3967c478bd9Sstevel@tonic-gate 3977c478bd9Sstevel@tonic-gate if (so->so_flag & SOWANT) 3987c478bd9Sstevel@tonic-gate cv_broadcast(&so->so_want_cv); 3997c478bd9Sstevel@tonic-gate so->so_flag &= ~(SOWANT|SOREADLOCKED); 4007c478bd9Sstevel@tonic-gate } 4017c478bd9Sstevel@tonic-gate 4027c478bd9Sstevel@tonic-gate /* 4037c478bd9Sstevel@tonic-gate * Verify that the specified offset falls within the mblk and 4047c478bd9Sstevel@tonic-gate * that the resulting pointer is aligned. 4057c478bd9Sstevel@tonic-gate * Returns NULL if not. 4067c478bd9Sstevel@tonic-gate */ 4077c478bd9Sstevel@tonic-gate void * 4087c478bd9Sstevel@tonic-gate sogetoff(mblk_t *mp, t_uscalar_t offset, 4097c478bd9Sstevel@tonic-gate t_uscalar_t length, uint_t align_size) 4107c478bd9Sstevel@tonic-gate { 4117c478bd9Sstevel@tonic-gate uintptr_t ptr1, ptr2; 4127c478bd9Sstevel@tonic-gate 4137c478bd9Sstevel@tonic-gate ASSERT(mp && mp->b_wptr >= mp->b_rptr); 4147c478bd9Sstevel@tonic-gate ptr1 = (uintptr_t)mp->b_rptr + offset; 4157c478bd9Sstevel@tonic-gate ptr2 = (uintptr_t)ptr1 + length; 4167c478bd9Sstevel@tonic-gate if (ptr1 < (uintptr_t)mp->b_rptr || ptr2 > (uintptr_t)mp->b_wptr) { 4177c478bd9Sstevel@tonic-gate eprintline(0); 4187c478bd9Sstevel@tonic-gate return (NULL); 4197c478bd9Sstevel@tonic-gate } 4207c478bd9Sstevel@tonic-gate if ((ptr1 & (align_size - 1)) != 0) { 4217c478bd9Sstevel@tonic-gate eprintline(0); 4227c478bd9Sstevel@tonic-gate return (NULL); 4237c478bd9Sstevel@tonic-gate } 4247c478bd9Sstevel@tonic-gate return ((void *)ptr1); 4257c478bd9Sstevel@tonic-gate } 4267c478bd9Sstevel@tonic-gate 4277c478bd9Sstevel@tonic-gate /* 4287c478bd9Sstevel@tonic-gate * Return the AF_UNIX underlying filesystem vnode matching a given name. 4297c478bd9Sstevel@tonic-gate * Makes sure the sending and the destination sonodes are compatible. 4307c478bd9Sstevel@tonic-gate * The vnode is returned held. 4317c478bd9Sstevel@tonic-gate * 4327c478bd9Sstevel@tonic-gate * The underlying filesystem VSOCK vnode has a v_stream pointer that 4337c478bd9Sstevel@tonic-gate * references the actual stream head (hence indirectly the actual sonode). 4347c478bd9Sstevel@tonic-gate */ 4357c478bd9Sstevel@tonic-gate static int 4367c478bd9Sstevel@tonic-gate so_ux_lookup(struct sonode *so, struct sockaddr_un *soun, int checkaccess, 4377c478bd9Sstevel@tonic-gate vnode_t **vpp) 4387c478bd9Sstevel@tonic-gate { 4397c478bd9Sstevel@tonic-gate vnode_t *vp; /* Underlying filesystem vnode */ 4409bf9355bSRic Aleshire vnode_t *rvp; /* real vnode */ 4417c478bd9Sstevel@tonic-gate vnode_t *svp; /* sockfs vnode */ 4427c478bd9Sstevel@tonic-gate struct sonode *so2; 4437c478bd9Sstevel@tonic-gate int error; 4447c478bd9Sstevel@tonic-gate 4453eceedbbSrh87107 dprintso(so, 1, ("so_ux_lookup(%p) name <%s>\n", (void *)so, 4463eceedbbSrh87107 soun->sun_path)); 4477c478bd9Sstevel@tonic-gate 4487c478bd9Sstevel@tonic-gate error = lookupname(soun->sun_path, UIO_SYSSPACE, FOLLOW, NULLVPP, &vp); 4497c478bd9Sstevel@tonic-gate if (error) { 4507c478bd9Sstevel@tonic-gate eprintsoline(so, error); 4517c478bd9Sstevel@tonic-gate return (error); 4527c478bd9Sstevel@tonic-gate } 4539bf9355bSRic Aleshire 4549bf9355bSRic Aleshire /* 4559bf9355bSRic Aleshire * Traverse lofs mounts get the real vnode 4569bf9355bSRic Aleshire */ 4579bf9355bSRic Aleshire if (VOP_REALVP(vp, &rvp, NULL) == 0) { 4589bf9355bSRic Aleshire VN_HOLD(rvp); /* hold the real vnode */ 4599bf9355bSRic Aleshire VN_RELE(vp); /* release hold from lookup */ 4609bf9355bSRic Aleshire vp = rvp; 4619bf9355bSRic Aleshire } 4629bf9355bSRic Aleshire 4637c478bd9Sstevel@tonic-gate if (vp->v_type != VSOCK) { 4647c478bd9Sstevel@tonic-gate error = ENOTSOCK; 4657c478bd9Sstevel@tonic-gate eprintsoline(so, error); 4667c478bd9Sstevel@tonic-gate goto done2; 4677c478bd9Sstevel@tonic-gate } 4687c478bd9Sstevel@tonic-gate 4697c478bd9Sstevel@tonic-gate if (checkaccess) { 4707c478bd9Sstevel@tonic-gate /* 4717c478bd9Sstevel@tonic-gate * Check that we have permissions to access the destination 4727c478bd9Sstevel@tonic-gate * vnode. This check is not done in BSD but it is required 4737c478bd9Sstevel@tonic-gate * by X/Open. 4747c478bd9Sstevel@tonic-gate */ 475da6c28aaSamw if (error = VOP_ACCESS(vp, VREAD|VWRITE, 0, CRED(), NULL)) { 4767c478bd9Sstevel@tonic-gate eprintsoline(so, error); 4777c478bd9Sstevel@tonic-gate goto done2; 4787c478bd9Sstevel@tonic-gate } 4797c478bd9Sstevel@tonic-gate } 4807c478bd9Sstevel@tonic-gate 4817c478bd9Sstevel@tonic-gate /* 4827c478bd9Sstevel@tonic-gate * Check if the remote socket has been closed. 4837c478bd9Sstevel@tonic-gate * 4847c478bd9Sstevel@tonic-gate * Synchronize with vn_rele_stream by holding v_lock while traversing 4857c478bd9Sstevel@tonic-gate * v_stream->sd_vnode. 4867c478bd9Sstevel@tonic-gate */ 4877c478bd9Sstevel@tonic-gate mutex_enter(&vp->v_lock); 4887c478bd9Sstevel@tonic-gate if (vp->v_stream == NULL) { 4897c478bd9Sstevel@tonic-gate mutex_exit(&vp->v_lock); 4907c478bd9Sstevel@tonic-gate if (so->so_type == SOCK_DGRAM) 4917c478bd9Sstevel@tonic-gate error = EDESTADDRREQ; 4927c478bd9Sstevel@tonic-gate else 4937c478bd9Sstevel@tonic-gate error = ECONNREFUSED; 4947c478bd9Sstevel@tonic-gate 4957c478bd9Sstevel@tonic-gate eprintsoline(so, error); 4967c478bd9Sstevel@tonic-gate goto done2; 4977c478bd9Sstevel@tonic-gate } 4987c478bd9Sstevel@tonic-gate ASSERT(vp->v_stream->sd_vnode); 4997c478bd9Sstevel@tonic-gate svp = vp->v_stream->sd_vnode; 5007c478bd9Sstevel@tonic-gate /* 5017c478bd9Sstevel@tonic-gate * holding v_lock on underlying filesystem vnode and acquiring 5027c478bd9Sstevel@tonic-gate * it on sockfs vnode. Assumes that no code ever attempts to 5037c478bd9Sstevel@tonic-gate * acquire these locks in the reverse order. 5047c478bd9Sstevel@tonic-gate */ 5057c478bd9Sstevel@tonic-gate VN_HOLD(svp); 5067c478bd9Sstevel@tonic-gate mutex_exit(&vp->v_lock); 5077c478bd9Sstevel@tonic-gate 5087c478bd9Sstevel@tonic-gate if (svp->v_type != VSOCK) { 5097c478bd9Sstevel@tonic-gate error = ENOTSOCK; 5107c478bd9Sstevel@tonic-gate eprintsoline(so, error); 5117c478bd9Sstevel@tonic-gate goto done; 5127c478bd9Sstevel@tonic-gate } 5137c478bd9Sstevel@tonic-gate 5147c478bd9Sstevel@tonic-gate so2 = VTOSO(svp); 5157c478bd9Sstevel@tonic-gate 5167c478bd9Sstevel@tonic-gate if (so->so_type != so2->so_type) { 5177c478bd9Sstevel@tonic-gate error = EPROTOTYPE; 5187c478bd9Sstevel@tonic-gate eprintsoline(so, error); 5197c478bd9Sstevel@tonic-gate goto done; 5207c478bd9Sstevel@tonic-gate } 5217c478bd9Sstevel@tonic-gate 5227c478bd9Sstevel@tonic-gate VN_RELE(svp); 5237c478bd9Sstevel@tonic-gate *vpp = vp; 5247c478bd9Sstevel@tonic-gate return (0); 5257c478bd9Sstevel@tonic-gate 5267c478bd9Sstevel@tonic-gate done: 5277c478bd9Sstevel@tonic-gate VN_RELE(svp); 5287c478bd9Sstevel@tonic-gate done2: 5297c478bd9Sstevel@tonic-gate VN_RELE(vp); 5307c478bd9Sstevel@tonic-gate return (error); 5317c478bd9Sstevel@tonic-gate } 5327c478bd9Sstevel@tonic-gate 5337c478bd9Sstevel@tonic-gate /* 5347c478bd9Sstevel@tonic-gate * Verify peer address for connect and sendto/sendmsg. 5357c478bd9Sstevel@tonic-gate * Since sendto/sendmsg would not get synchronous errors from the transport 5367c478bd9Sstevel@tonic-gate * provider we have to do these ugly checks in the socket layer to 5377c478bd9Sstevel@tonic-gate * preserve compatibility with SunOS 4.X. 5387c478bd9Sstevel@tonic-gate */ 5397c478bd9Sstevel@tonic-gate int 5407c478bd9Sstevel@tonic-gate so_addr_verify(struct sonode *so, const struct sockaddr *name, 5417c478bd9Sstevel@tonic-gate socklen_t namelen) 5427c478bd9Sstevel@tonic-gate { 5437c478bd9Sstevel@tonic-gate int family; 5447c478bd9Sstevel@tonic-gate 545903a11ebSrh87107 dprintso(so, 1, ("so_addr_verify(%p, %p, %d)\n", 546903a11ebSrh87107 (void *)so, (void *)name, namelen)); 5477c478bd9Sstevel@tonic-gate 5487c478bd9Sstevel@tonic-gate ASSERT(name != NULL); 5497c478bd9Sstevel@tonic-gate 5507c478bd9Sstevel@tonic-gate family = so->so_family; 5517c478bd9Sstevel@tonic-gate switch (family) { 5527c478bd9Sstevel@tonic-gate case AF_INET: 5537c478bd9Sstevel@tonic-gate if (name->sa_family != family) { 5547c478bd9Sstevel@tonic-gate eprintsoline(so, EAFNOSUPPORT); 5557c478bd9Sstevel@tonic-gate return (EAFNOSUPPORT); 5567c478bd9Sstevel@tonic-gate } 5577c478bd9Sstevel@tonic-gate if (namelen != (socklen_t)sizeof (struct sockaddr_in)) { 5587c478bd9Sstevel@tonic-gate eprintsoline(so, EINVAL); 5597c478bd9Sstevel@tonic-gate return (EINVAL); 5607c478bd9Sstevel@tonic-gate } 5617c478bd9Sstevel@tonic-gate break; 5627c478bd9Sstevel@tonic-gate case AF_INET6: { 5637c478bd9Sstevel@tonic-gate #ifdef DEBUG 5647c478bd9Sstevel@tonic-gate struct sockaddr_in6 *sin6; 5657c478bd9Sstevel@tonic-gate #endif /* DEBUG */ 5667c478bd9Sstevel@tonic-gate 5677c478bd9Sstevel@tonic-gate if (name->sa_family != family) { 5687c478bd9Sstevel@tonic-gate eprintsoline(so, EAFNOSUPPORT); 5697c478bd9Sstevel@tonic-gate return (EAFNOSUPPORT); 5707c478bd9Sstevel@tonic-gate } 5717c478bd9Sstevel@tonic-gate if (namelen != (socklen_t)sizeof (struct sockaddr_in6)) { 5727c478bd9Sstevel@tonic-gate eprintsoline(so, EINVAL); 5737c478bd9Sstevel@tonic-gate return (EINVAL); 5747c478bd9Sstevel@tonic-gate } 5757c478bd9Sstevel@tonic-gate #ifdef DEBUG 5767c478bd9Sstevel@tonic-gate /* Verify that apps don't forget to clear sin6_scope_id etc */ 5777c478bd9Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)name; 5787c478bd9Sstevel@tonic-gate if (sin6->sin6_scope_id != 0 && 5797c478bd9Sstevel@tonic-gate !IN6_IS_ADDR_LINKSCOPE(&sin6->sin6_addr)) { 5802caf0dcdSrshoaib zcmn_err(getzoneid(), CE_WARN, 5817c478bd9Sstevel@tonic-gate "connect/send* with uninitialized sin6_scope_id " 5827c478bd9Sstevel@tonic-gate "(%d) on socket. Pid = %d\n", 5837c478bd9Sstevel@tonic-gate (int)sin6->sin6_scope_id, (int)curproc->p_pid); 5847c478bd9Sstevel@tonic-gate } 5857c478bd9Sstevel@tonic-gate #endif /* DEBUG */ 5867c478bd9Sstevel@tonic-gate break; 5877c478bd9Sstevel@tonic-gate } 5887c478bd9Sstevel@tonic-gate case AF_UNIX: 5890f1702c5SYu Xiangning if (SOTOTPI(so)->sti_faddr_noxlate) { 5907c478bd9Sstevel@tonic-gate return (0); 5917c478bd9Sstevel@tonic-gate } 5927c478bd9Sstevel@tonic-gate if (namelen < (socklen_t)sizeof (short)) { 5937c478bd9Sstevel@tonic-gate eprintsoline(so, ENOENT); 5947c478bd9Sstevel@tonic-gate return (ENOENT); 5957c478bd9Sstevel@tonic-gate } 5967c478bd9Sstevel@tonic-gate if (name->sa_family != family) { 5977c478bd9Sstevel@tonic-gate eprintsoline(so, EAFNOSUPPORT); 5987c478bd9Sstevel@tonic-gate return (EAFNOSUPPORT); 5997c478bd9Sstevel@tonic-gate } 6007c478bd9Sstevel@tonic-gate /* MAXPATHLEN + soun_family + nul termination */ 6017c478bd9Sstevel@tonic-gate if (namelen > (socklen_t)(MAXPATHLEN + sizeof (short) + 1)) { 6027c478bd9Sstevel@tonic-gate eprintsoline(so, ENAMETOOLONG); 6037c478bd9Sstevel@tonic-gate return (ENAMETOOLONG); 6047c478bd9Sstevel@tonic-gate } 6057c478bd9Sstevel@tonic-gate 6067c478bd9Sstevel@tonic-gate break; 6077c478bd9Sstevel@tonic-gate 6087c478bd9Sstevel@tonic-gate default: 6097c478bd9Sstevel@tonic-gate /* 6107c478bd9Sstevel@tonic-gate * Default is don't do any length or sa_family check 6117c478bd9Sstevel@tonic-gate * to allow non-sockaddr style addresses. 6127c478bd9Sstevel@tonic-gate */ 6137c478bd9Sstevel@tonic-gate break; 6147c478bd9Sstevel@tonic-gate } 6157c478bd9Sstevel@tonic-gate 6167c478bd9Sstevel@tonic-gate return (0); 6177c478bd9Sstevel@tonic-gate } 6187c478bd9Sstevel@tonic-gate 6197c478bd9Sstevel@tonic-gate 6207c478bd9Sstevel@tonic-gate /* 6217c478bd9Sstevel@tonic-gate * Translate an AF_UNIX sockaddr_un to the transport internal name. 6227c478bd9Sstevel@tonic-gate * Assumes caller has called so_addr_verify first. 6237c478bd9Sstevel@tonic-gate */ 6247c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 6257c478bd9Sstevel@tonic-gate int 6267c478bd9Sstevel@tonic-gate so_ux_addr_xlate(struct sonode *so, struct sockaddr *name, 6277c478bd9Sstevel@tonic-gate socklen_t namelen, int checkaccess, 6287c478bd9Sstevel@tonic-gate void **addrp, socklen_t *addrlenp) 6297c478bd9Sstevel@tonic-gate { 6307c478bd9Sstevel@tonic-gate int error; 6317c478bd9Sstevel@tonic-gate struct sockaddr_un *soun; 6327c478bd9Sstevel@tonic-gate vnode_t *vp; 6337c478bd9Sstevel@tonic-gate void *addr; 6347c478bd9Sstevel@tonic-gate socklen_t addrlen; 6350f1702c5SYu Xiangning sotpi_info_t *sti = SOTOTPI(so); 6367c478bd9Sstevel@tonic-gate 6377c478bd9Sstevel@tonic-gate dprintso(so, 1, ("so_ux_addr_xlate(%p, %p, %d, %d)\n", 638903a11ebSrh87107 (void *)so, (void *)name, namelen, checkaccess)); 6397c478bd9Sstevel@tonic-gate 6407c478bd9Sstevel@tonic-gate ASSERT(name != NULL); 6417c478bd9Sstevel@tonic-gate ASSERT(so->so_family == AF_UNIX); 6420f1702c5SYu Xiangning ASSERT(!sti->sti_faddr_noxlate); 6437c478bd9Sstevel@tonic-gate ASSERT(namelen >= (socklen_t)sizeof (short)); 6447c478bd9Sstevel@tonic-gate ASSERT(name->sa_family == AF_UNIX); 6457c478bd9Sstevel@tonic-gate soun = (struct sockaddr_un *)name; 6467c478bd9Sstevel@tonic-gate /* 6477c478bd9Sstevel@tonic-gate * Lookup vnode for the specified path name and verify that 6487c478bd9Sstevel@tonic-gate * it is a socket. 6497c478bd9Sstevel@tonic-gate */ 6507c478bd9Sstevel@tonic-gate error = so_ux_lookup(so, soun, checkaccess, &vp); 6517c478bd9Sstevel@tonic-gate if (error) { 6527c478bd9Sstevel@tonic-gate eprintsoline(so, error); 6537c478bd9Sstevel@tonic-gate return (error); 6547c478bd9Sstevel@tonic-gate } 6557c478bd9Sstevel@tonic-gate /* 6567c478bd9Sstevel@tonic-gate * Use the address of the peer vnode as the address to send 6577c478bd9Sstevel@tonic-gate * to. We release the peer vnode here. In case it has been 6587c478bd9Sstevel@tonic-gate * closed by the time the T_CONN_REQ or T_UNIDATA_REQ reaches the 6597c478bd9Sstevel@tonic-gate * transport the message will get an error or be dropped. 6607c478bd9Sstevel@tonic-gate */ 6610f1702c5SYu Xiangning sti->sti_ux_faddr.soua_vp = vp; 6620f1702c5SYu Xiangning sti->sti_ux_faddr.soua_magic = SOU_MAGIC_EXPLICIT; 6630f1702c5SYu Xiangning addr = &sti->sti_ux_faddr; 6640f1702c5SYu Xiangning addrlen = (socklen_t)sizeof (sti->sti_ux_faddr); 665903a11ebSrh87107 dprintso(so, 1, ("ux_xlate UNIX: addrlen %d, vp %p\n", 666903a11ebSrh87107 addrlen, (void *)vp)); 6677c478bd9Sstevel@tonic-gate VN_RELE(vp); 6687c478bd9Sstevel@tonic-gate *addrp = addr; 6697c478bd9Sstevel@tonic-gate *addrlenp = (socklen_t)addrlen; 6707c478bd9Sstevel@tonic-gate return (0); 6717c478bd9Sstevel@tonic-gate } 6727c478bd9Sstevel@tonic-gate 6737c478bd9Sstevel@tonic-gate /* 6747c478bd9Sstevel@tonic-gate * Esballoc free function for messages that contain SO_FILEP option. 6757c478bd9Sstevel@tonic-gate * Decrement the reference count on the file pointers using closef. 6767c478bd9Sstevel@tonic-gate */ 6777c478bd9Sstevel@tonic-gate void 6787c478bd9Sstevel@tonic-gate fdbuf_free(struct fdbuf *fdbuf) 6797c478bd9Sstevel@tonic-gate { 6807c478bd9Sstevel@tonic-gate int i; 6817c478bd9Sstevel@tonic-gate struct file *fp; 6827c478bd9Sstevel@tonic-gate 6837c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_free: %d fds\n", fdbuf->fd_numfd)); 6847c478bd9Sstevel@tonic-gate for (i = 0; i < fdbuf->fd_numfd; i++) { 6857c478bd9Sstevel@tonic-gate /* 6867c478bd9Sstevel@tonic-gate * We need pointer size alignment for fd_fds. On a LP64 6877c478bd9Sstevel@tonic-gate * kernel, the required alignment is 8 bytes while 6887c478bd9Sstevel@tonic-gate * the option headers and values are only 4 bytes 6897c478bd9Sstevel@tonic-gate * aligned. So its safer to do a bcopy compared to 6907c478bd9Sstevel@tonic-gate * assigning fdbuf->fd_fds[i] to fp. 6917c478bd9Sstevel@tonic-gate */ 6927c478bd9Sstevel@tonic-gate bcopy((char *)&fdbuf->fd_fds[i], (char *)&fp, sizeof (fp)); 693903a11ebSrh87107 dprint(1, ("fdbuf_free: [%d] = %p\n", i, (void *)fp)); 6947c478bd9Sstevel@tonic-gate (void) closef(fp); 6957c478bd9Sstevel@tonic-gate } 6967c478bd9Sstevel@tonic-gate if (fdbuf->fd_ebuf != NULL) 6977c478bd9Sstevel@tonic-gate kmem_free(fdbuf->fd_ebuf, fdbuf->fd_ebuflen); 6987c478bd9Sstevel@tonic-gate kmem_free(fdbuf, fdbuf->fd_size); 6997c478bd9Sstevel@tonic-gate } 7007c478bd9Sstevel@tonic-gate 7017c478bd9Sstevel@tonic-gate /* 702bd118333Smeem * Allocate an esballoc'ed message for AF_UNIX file descriptor passing. 703bd118333Smeem * Waits if memory is not available. 7047c478bd9Sstevel@tonic-gate */ 7057c478bd9Sstevel@tonic-gate mblk_t * 7067c478bd9Sstevel@tonic-gate fdbuf_allocmsg(int size, struct fdbuf *fdbuf) 7077c478bd9Sstevel@tonic-gate { 708bd118333Smeem uchar_t *buf; 7097c478bd9Sstevel@tonic-gate mblk_t *mp; 7107c478bd9Sstevel@tonic-gate 7117c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_allocmsg: size %d, %d fds\n", size, fdbuf->fd_numfd)); 7127c478bd9Sstevel@tonic-gate buf = kmem_alloc(size, KM_SLEEP); 7137c478bd9Sstevel@tonic-gate fdbuf->fd_ebuf = (caddr_t)buf; 7147c478bd9Sstevel@tonic-gate fdbuf->fd_ebuflen = size; 7157c478bd9Sstevel@tonic-gate fdbuf->fd_frtn.free_func = fdbuf_free; 7167c478bd9Sstevel@tonic-gate fdbuf->fd_frtn.free_arg = (caddr_t)fdbuf; 7177c478bd9Sstevel@tonic-gate 718bd118333Smeem mp = esballoc_wait(buf, size, BPRI_MED, &fdbuf->fd_frtn); 7197c478bd9Sstevel@tonic-gate mp->b_datap->db_type = M_PROTO; 7207c478bd9Sstevel@tonic-gate return (mp); 7217c478bd9Sstevel@tonic-gate } 7227c478bd9Sstevel@tonic-gate 7237c478bd9Sstevel@tonic-gate /* 7247c478bd9Sstevel@tonic-gate * Extract file descriptors from a fdbuf. 7257c478bd9Sstevel@tonic-gate * Return list in rights/rightslen. 7267c478bd9Sstevel@tonic-gate */ 7277c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 7287c478bd9Sstevel@tonic-gate static int 7297c478bd9Sstevel@tonic-gate fdbuf_extract(struct fdbuf *fdbuf, void *rights, int rightslen) 7307c478bd9Sstevel@tonic-gate { 7317c478bd9Sstevel@tonic-gate int i, fd; 7327c478bd9Sstevel@tonic-gate int *rp; 7337c478bd9Sstevel@tonic-gate struct file *fp; 7347c478bd9Sstevel@tonic-gate int numfd; 7357c478bd9Sstevel@tonic-gate 7367c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_extract: %d fds, len %d\n", 7377c478bd9Sstevel@tonic-gate fdbuf->fd_numfd, rightslen)); 7387c478bd9Sstevel@tonic-gate 7397c478bd9Sstevel@tonic-gate numfd = fdbuf->fd_numfd; 7407c478bd9Sstevel@tonic-gate ASSERT(rightslen == numfd * (int)sizeof (int)); 7417c478bd9Sstevel@tonic-gate 7427c478bd9Sstevel@tonic-gate /* 7437c478bd9Sstevel@tonic-gate * Allocate a file descriptor and increment the f_count. 7447c478bd9Sstevel@tonic-gate * The latter is needed since we always call fdbuf_free 7457c478bd9Sstevel@tonic-gate * which performs a closef. 7467c478bd9Sstevel@tonic-gate */ 7477c478bd9Sstevel@tonic-gate rp = (int *)rights; 7487c478bd9Sstevel@tonic-gate for (i = 0; i < numfd; i++) { 7497c478bd9Sstevel@tonic-gate if ((fd = ufalloc(0)) == -1) 7507c478bd9Sstevel@tonic-gate goto cleanup; 7517c478bd9Sstevel@tonic-gate /* 7527c478bd9Sstevel@tonic-gate * We need pointer size alignment for fd_fds. On a LP64 7537c478bd9Sstevel@tonic-gate * kernel, the required alignment is 8 bytes while 7547c478bd9Sstevel@tonic-gate * the option headers and values are only 4 bytes 7557c478bd9Sstevel@tonic-gate * aligned. So its safer to do a bcopy compared to 7567c478bd9Sstevel@tonic-gate * assigning fdbuf->fd_fds[i] to fp. 7577c478bd9Sstevel@tonic-gate */ 7587c478bd9Sstevel@tonic-gate bcopy((char *)&fdbuf->fd_fds[i], (char *)&fp, sizeof (fp)); 7597c478bd9Sstevel@tonic-gate mutex_enter(&fp->f_tlock); 7607c478bd9Sstevel@tonic-gate fp->f_count++; 7617c478bd9Sstevel@tonic-gate mutex_exit(&fp->f_tlock); 7627c478bd9Sstevel@tonic-gate setf(fd, fp); 7637c478bd9Sstevel@tonic-gate *rp++ = fd; 7647c478bd9Sstevel@tonic-gate if (audit_active) 7657c478bd9Sstevel@tonic-gate audit_fdrecv(fd, fp); 7667c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_extract: [%d] = %d, %p refcnt %d\n", 767903a11ebSrh87107 i, fd, (void *)fp, fp->f_count)); 7687c478bd9Sstevel@tonic-gate } 7697c478bd9Sstevel@tonic-gate return (0); 7707c478bd9Sstevel@tonic-gate 7717c478bd9Sstevel@tonic-gate cleanup: 7727c478bd9Sstevel@tonic-gate /* 7737c478bd9Sstevel@tonic-gate * Undo whatever partial work the loop above has done. 7747c478bd9Sstevel@tonic-gate */ 7757c478bd9Sstevel@tonic-gate { 7767c478bd9Sstevel@tonic-gate int j; 7777c478bd9Sstevel@tonic-gate 7787c478bd9Sstevel@tonic-gate rp = (int *)rights; 7797c478bd9Sstevel@tonic-gate for (j = 0; j < i; j++) { 7807c478bd9Sstevel@tonic-gate dprint(0, 7817c478bd9Sstevel@tonic-gate ("fdbuf_extract: cleanup[%d] = %d\n", j, *rp)); 7827c478bd9Sstevel@tonic-gate (void) closeandsetf(*rp++, NULL); 7837c478bd9Sstevel@tonic-gate } 7847c478bd9Sstevel@tonic-gate } 7857c478bd9Sstevel@tonic-gate 7867c478bd9Sstevel@tonic-gate return (EMFILE); 7877c478bd9Sstevel@tonic-gate } 7887c478bd9Sstevel@tonic-gate 7897c478bd9Sstevel@tonic-gate /* 7907c478bd9Sstevel@tonic-gate * Insert file descriptors into an fdbuf. 7917c478bd9Sstevel@tonic-gate * Returns a kmem_alloc'ed fdbuf. The fdbuf should be freed 7927c478bd9Sstevel@tonic-gate * by calling fdbuf_free(). 7937c478bd9Sstevel@tonic-gate */ 7947c478bd9Sstevel@tonic-gate int 7957c478bd9Sstevel@tonic-gate fdbuf_create(void *rights, int rightslen, struct fdbuf **fdbufp) 7967c478bd9Sstevel@tonic-gate { 7977c478bd9Sstevel@tonic-gate int numfd, i; 7987c478bd9Sstevel@tonic-gate int *fds; 7997c478bd9Sstevel@tonic-gate struct file *fp; 8007c478bd9Sstevel@tonic-gate struct fdbuf *fdbuf; 8017c478bd9Sstevel@tonic-gate int fdbufsize; 8027c478bd9Sstevel@tonic-gate 8037c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_create: len %d\n", rightslen)); 8047c478bd9Sstevel@tonic-gate 8057c478bd9Sstevel@tonic-gate numfd = rightslen / (int)sizeof (int); 8067c478bd9Sstevel@tonic-gate 8077c478bd9Sstevel@tonic-gate fdbufsize = (int)FDBUF_HDRSIZE + (numfd * (int)sizeof (struct file *)); 8087c478bd9Sstevel@tonic-gate fdbuf = kmem_alloc(fdbufsize, KM_SLEEP); 8097c478bd9Sstevel@tonic-gate fdbuf->fd_size = fdbufsize; 8107c478bd9Sstevel@tonic-gate fdbuf->fd_numfd = 0; 8117c478bd9Sstevel@tonic-gate fdbuf->fd_ebuf = NULL; 8127c478bd9Sstevel@tonic-gate fdbuf->fd_ebuflen = 0; 8137c478bd9Sstevel@tonic-gate fds = (int *)rights; 8147c478bd9Sstevel@tonic-gate for (i = 0; i < numfd; i++) { 8157c478bd9Sstevel@tonic-gate if ((fp = getf(fds[i])) == NULL) { 8167c478bd9Sstevel@tonic-gate fdbuf_free(fdbuf); 8177c478bd9Sstevel@tonic-gate return (EBADF); 8187c478bd9Sstevel@tonic-gate } 8197c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_create: [%d] = %d, %p refcnt %d\n", 820903a11ebSrh87107 i, fds[i], (void *)fp, fp->f_count)); 8217c478bd9Sstevel@tonic-gate mutex_enter(&fp->f_tlock); 8227c478bd9Sstevel@tonic-gate fp->f_count++; 8237c478bd9Sstevel@tonic-gate mutex_exit(&fp->f_tlock); 8247c478bd9Sstevel@tonic-gate /* 8257c478bd9Sstevel@tonic-gate * The maximum alignment for fdbuf (or any option header 8267c478bd9Sstevel@tonic-gate * and its value) it 4 bytes. On a LP64 kernel, the alignment 8277c478bd9Sstevel@tonic-gate * is not sufficient for pointers (fd_fds in this case). Since 8287c478bd9Sstevel@tonic-gate * we just did a kmem_alloc (we get a double word alignment), 8297c478bd9Sstevel@tonic-gate * we don't need to do anything on the send side (we loose 8307c478bd9Sstevel@tonic-gate * the double word alignment because fdbuf goes after an 8317c478bd9Sstevel@tonic-gate * option header (eg T_unitdata_req) which is only 4 byte 8327c478bd9Sstevel@tonic-gate * aligned). We take care of this when we extract the file 8337c478bd9Sstevel@tonic-gate * descriptor in fdbuf_extract or fdbuf_free. 8347c478bd9Sstevel@tonic-gate */ 8357c478bd9Sstevel@tonic-gate fdbuf->fd_fds[i] = fp; 8367c478bd9Sstevel@tonic-gate fdbuf->fd_numfd++; 8377c478bd9Sstevel@tonic-gate releasef(fds[i]); 8387c478bd9Sstevel@tonic-gate if (audit_active) 8397c478bd9Sstevel@tonic-gate audit_fdsend(fds[i], fp, 0); 8407c478bd9Sstevel@tonic-gate } 8417c478bd9Sstevel@tonic-gate *fdbufp = fdbuf; 8427c478bd9Sstevel@tonic-gate return (0); 8437c478bd9Sstevel@tonic-gate } 8447c478bd9Sstevel@tonic-gate 8457c478bd9Sstevel@tonic-gate static int 8467c478bd9Sstevel@tonic-gate fdbuf_optlen(int rightslen) 8477c478bd9Sstevel@tonic-gate { 8487c478bd9Sstevel@tonic-gate int numfd; 8497c478bd9Sstevel@tonic-gate 8507c478bd9Sstevel@tonic-gate numfd = rightslen / (int)sizeof (int); 8517c478bd9Sstevel@tonic-gate 8527c478bd9Sstevel@tonic-gate return ((int)FDBUF_HDRSIZE + (numfd * (int)sizeof (struct file *))); 8537c478bd9Sstevel@tonic-gate } 8547c478bd9Sstevel@tonic-gate 8557c478bd9Sstevel@tonic-gate static t_uscalar_t 8567c478bd9Sstevel@tonic-gate fdbuf_cmsglen(int fdbuflen) 8577c478bd9Sstevel@tonic-gate { 8587c478bd9Sstevel@tonic-gate return (t_uscalar_t)((fdbuflen - FDBUF_HDRSIZE) / 8597c478bd9Sstevel@tonic-gate (int)sizeof (struct file *) * (int)sizeof (int)); 8607c478bd9Sstevel@tonic-gate } 8617c478bd9Sstevel@tonic-gate 8627c478bd9Sstevel@tonic-gate 8637c478bd9Sstevel@tonic-gate /* 8647c478bd9Sstevel@tonic-gate * Return non-zero if the mblk and fdbuf are consistent. 8657c478bd9Sstevel@tonic-gate */ 8667c478bd9Sstevel@tonic-gate static int 8677c478bd9Sstevel@tonic-gate fdbuf_verify(mblk_t *mp, struct fdbuf *fdbuf, int fdbuflen) 8687c478bd9Sstevel@tonic-gate { 8697c478bd9Sstevel@tonic-gate if (fdbuflen >= FDBUF_HDRSIZE && 8707c478bd9Sstevel@tonic-gate fdbuflen == fdbuf->fd_size) { 8717c478bd9Sstevel@tonic-gate frtn_t *frp = mp->b_datap->db_frtnp; 8727c478bd9Sstevel@tonic-gate /* 8737c478bd9Sstevel@tonic-gate * Check that the SO_FILEP portion of the 8747c478bd9Sstevel@tonic-gate * message has not been modified by 8757c478bd9Sstevel@tonic-gate * the loopback transport. The sending sockfs generates 8767c478bd9Sstevel@tonic-gate * a message that is esballoc'ed with the free function 8777c478bd9Sstevel@tonic-gate * being fdbuf_free() and where free_arg contains the 8787c478bd9Sstevel@tonic-gate * identical information as the SO_FILEP content. 8797c478bd9Sstevel@tonic-gate * 8807c478bd9Sstevel@tonic-gate * If any of these constraints are not satisfied we 8817c478bd9Sstevel@tonic-gate * silently ignore the option. 8827c478bd9Sstevel@tonic-gate */ 8837c478bd9Sstevel@tonic-gate ASSERT(mp); 8847c478bd9Sstevel@tonic-gate if (frp != NULL && 8857c478bd9Sstevel@tonic-gate frp->free_func == fdbuf_free && 8867c478bd9Sstevel@tonic-gate frp->free_arg != NULL && 8877c478bd9Sstevel@tonic-gate bcmp(frp->free_arg, fdbuf, fdbuflen) == 0) { 8887c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_verify: fdbuf %p len %d\n", 889903a11ebSrh87107 (void *)fdbuf, fdbuflen)); 8907c478bd9Sstevel@tonic-gate return (1); 8917c478bd9Sstevel@tonic-gate } else { 8922caf0dcdSrshoaib zcmn_err(getzoneid(), CE_WARN, 8937c478bd9Sstevel@tonic-gate "sockfs: mismatched fdbuf content (%p)", 8947c478bd9Sstevel@tonic-gate (void *)mp); 8957c478bd9Sstevel@tonic-gate return (0); 8967c478bd9Sstevel@tonic-gate } 8977c478bd9Sstevel@tonic-gate } else { 8982caf0dcdSrshoaib zcmn_err(getzoneid(), CE_WARN, 8997c478bd9Sstevel@tonic-gate "sockfs: mismatched fdbuf len %d, %d\n", 9007c478bd9Sstevel@tonic-gate fdbuflen, fdbuf->fd_size); 9017c478bd9Sstevel@tonic-gate return (0); 9027c478bd9Sstevel@tonic-gate } 9037c478bd9Sstevel@tonic-gate } 9047c478bd9Sstevel@tonic-gate 9057c478bd9Sstevel@tonic-gate /* 9067c478bd9Sstevel@tonic-gate * When the file descriptors returned by sorecvmsg can not be passed 9077c478bd9Sstevel@tonic-gate * to the application this routine will cleanup the references on 9087c478bd9Sstevel@tonic-gate * the files. Start at startoff bytes into the buffer. 9097c478bd9Sstevel@tonic-gate */ 9107c478bd9Sstevel@tonic-gate static void 9117c478bd9Sstevel@tonic-gate close_fds(void *fdbuf, int fdbuflen, int startoff) 9127c478bd9Sstevel@tonic-gate { 9137c478bd9Sstevel@tonic-gate int *fds = (int *)fdbuf; 9147c478bd9Sstevel@tonic-gate int numfd = fdbuflen / (int)sizeof (int); 9157c478bd9Sstevel@tonic-gate int i; 9167c478bd9Sstevel@tonic-gate 9177c478bd9Sstevel@tonic-gate dprint(1, ("close_fds(%p, %d, %d)\n", fdbuf, fdbuflen, startoff)); 9187c478bd9Sstevel@tonic-gate 9197c478bd9Sstevel@tonic-gate for (i = 0; i < numfd; i++) { 9207c478bd9Sstevel@tonic-gate if (startoff < 0) 9217c478bd9Sstevel@tonic-gate startoff = 0; 9227c478bd9Sstevel@tonic-gate if (startoff < (int)sizeof (int)) { 9237c478bd9Sstevel@tonic-gate /* 9247c478bd9Sstevel@tonic-gate * This file descriptor is partially or fully after 9257c478bd9Sstevel@tonic-gate * the offset 9267c478bd9Sstevel@tonic-gate */ 9277c478bd9Sstevel@tonic-gate dprint(0, 9287c478bd9Sstevel@tonic-gate ("close_fds: cleanup[%d] = %d\n", i, fds[i])); 9297c478bd9Sstevel@tonic-gate (void) closeandsetf(fds[i], NULL); 9307c478bd9Sstevel@tonic-gate } 9317c478bd9Sstevel@tonic-gate startoff -= (int)sizeof (int); 9327c478bd9Sstevel@tonic-gate } 9337c478bd9Sstevel@tonic-gate } 9347c478bd9Sstevel@tonic-gate 9357c478bd9Sstevel@tonic-gate /* 9367c478bd9Sstevel@tonic-gate * Close all file descriptors contained in the control part starting at 9377c478bd9Sstevel@tonic-gate * the startoffset. 9387c478bd9Sstevel@tonic-gate */ 9397c478bd9Sstevel@tonic-gate void 9407c478bd9Sstevel@tonic-gate so_closefds(void *control, t_uscalar_t controllen, int oldflg, 9417c478bd9Sstevel@tonic-gate int startoff) 9427c478bd9Sstevel@tonic-gate { 9437c478bd9Sstevel@tonic-gate struct cmsghdr *cmsg; 9447c478bd9Sstevel@tonic-gate 9457c478bd9Sstevel@tonic-gate if (control == NULL) 9467c478bd9Sstevel@tonic-gate return; 9477c478bd9Sstevel@tonic-gate 9487c478bd9Sstevel@tonic-gate if (oldflg) { 9497c478bd9Sstevel@tonic-gate close_fds(control, controllen, startoff); 9507c478bd9Sstevel@tonic-gate return; 9517c478bd9Sstevel@tonic-gate } 9527c478bd9Sstevel@tonic-gate /* Scan control part for file descriptors. */ 9537c478bd9Sstevel@tonic-gate for (cmsg = (struct cmsghdr *)control; 9547c478bd9Sstevel@tonic-gate CMSG_VALID(cmsg, control, (uintptr_t)control + controllen); 9557c478bd9Sstevel@tonic-gate cmsg = CMSG_NEXT(cmsg)) { 9567c478bd9Sstevel@tonic-gate if (cmsg->cmsg_level == SOL_SOCKET && 9577c478bd9Sstevel@tonic-gate cmsg->cmsg_type == SCM_RIGHTS) { 9587c478bd9Sstevel@tonic-gate close_fds(CMSG_CONTENT(cmsg), 9597c478bd9Sstevel@tonic-gate (int)CMSG_CONTENTLEN(cmsg), 9607c478bd9Sstevel@tonic-gate startoff - (int)sizeof (struct cmsghdr)); 9617c478bd9Sstevel@tonic-gate } 9627c478bd9Sstevel@tonic-gate startoff -= cmsg->cmsg_len; 9637c478bd9Sstevel@tonic-gate } 9647c478bd9Sstevel@tonic-gate } 9657c478bd9Sstevel@tonic-gate 9667c478bd9Sstevel@tonic-gate /* 9677c478bd9Sstevel@tonic-gate * Returns a pointer/length for the file descriptors contained 9687c478bd9Sstevel@tonic-gate * in the control buffer. Returns with *fdlenp == -1 if there are no 9697c478bd9Sstevel@tonic-gate * file descriptor options present. This is different than there being 9707c478bd9Sstevel@tonic-gate * a zero-length file descriptor option. 9717c478bd9Sstevel@tonic-gate * Fail if there are multiple SCM_RIGHT cmsgs. 9727c478bd9Sstevel@tonic-gate */ 9737c478bd9Sstevel@tonic-gate int 9747c478bd9Sstevel@tonic-gate so_getfdopt(void *control, t_uscalar_t controllen, int oldflg, 9757c478bd9Sstevel@tonic-gate void **fdsp, int *fdlenp) 9767c478bd9Sstevel@tonic-gate { 9777c478bd9Sstevel@tonic-gate struct cmsghdr *cmsg; 9787c478bd9Sstevel@tonic-gate void *fds; 9797c478bd9Sstevel@tonic-gate int fdlen; 9807c478bd9Sstevel@tonic-gate 9817c478bd9Sstevel@tonic-gate if (control == NULL) { 9827c478bd9Sstevel@tonic-gate *fdsp = NULL; 9837c478bd9Sstevel@tonic-gate *fdlenp = -1; 9847c478bd9Sstevel@tonic-gate return (0); 9857c478bd9Sstevel@tonic-gate } 9867c478bd9Sstevel@tonic-gate 9877c478bd9Sstevel@tonic-gate if (oldflg) { 9887c478bd9Sstevel@tonic-gate *fdsp = control; 9897c478bd9Sstevel@tonic-gate if (controllen == 0) 9907c478bd9Sstevel@tonic-gate *fdlenp = -1; 9917c478bd9Sstevel@tonic-gate else 9927c478bd9Sstevel@tonic-gate *fdlenp = controllen; 9937c478bd9Sstevel@tonic-gate dprint(1, ("so_getfdopt: old %d\n", *fdlenp)); 9947c478bd9Sstevel@tonic-gate return (0); 9957c478bd9Sstevel@tonic-gate } 9967c478bd9Sstevel@tonic-gate 9977c478bd9Sstevel@tonic-gate fds = NULL; 9987c478bd9Sstevel@tonic-gate fdlen = 0; 9997c478bd9Sstevel@tonic-gate 10007c478bd9Sstevel@tonic-gate for (cmsg = (struct cmsghdr *)control; 10017c478bd9Sstevel@tonic-gate CMSG_VALID(cmsg, control, (uintptr_t)control + controllen); 10027c478bd9Sstevel@tonic-gate cmsg = CMSG_NEXT(cmsg)) { 10037c478bd9Sstevel@tonic-gate if (cmsg->cmsg_level == SOL_SOCKET && 10047c478bd9Sstevel@tonic-gate cmsg->cmsg_type == SCM_RIGHTS) { 10057c478bd9Sstevel@tonic-gate if (fds != NULL) 10067c478bd9Sstevel@tonic-gate return (EINVAL); 10077c478bd9Sstevel@tonic-gate fds = CMSG_CONTENT(cmsg); 10087c478bd9Sstevel@tonic-gate fdlen = (int)CMSG_CONTENTLEN(cmsg); 10091e0267ddSkrgopi dprint(1, ("so_getfdopt: new %lu\n", 10101e0267ddSkrgopi (size_t)CMSG_CONTENTLEN(cmsg))); 10117c478bd9Sstevel@tonic-gate } 10127c478bd9Sstevel@tonic-gate } 10137c478bd9Sstevel@tonic-gate if (fds == NULL) { 10147c478bd9Sstevel@tonic-gate dprint(1, ("so_getfdopt: NONE\n")); 10157c478bd9Sstevel@tonic-gate *fdlenp = -1; 10167c478bd9Sstevel@tonic-gate } else 10177c478bd9Sstevel@tonic-gate *fdlenp = fdlen; 10187c478bd9Sstevel@tonic-gate *fdsp = fds; 10197c478bd9Sstevel@tonic-gate return (0); 10207c478bd9Sstevel@tonic-gate } 10217c478bd9Sstevel@tonic-gate 10227c478bd9Sstevel@tonic-gate /* 10237c478bd9Sstevel@tonic-gate * Return the length of the options including any file descriptor options. 10247c478bd9Sstevel@tonic-gate */ 10257c478bd9Sstevel@tonic-gate t_uscalar_t 10267c478bd9Sstevel@tonic-gate so_optlen(void *control, t_uscalar_t controllen, int oldflg) 10277c478bd9Sstevel@tonic-gate { 10287c478bd9Sstevel@tonic-gate struct cmsghdr *cmsg; 10297c478bd9Sstevel@tonic-gate t_uscalar_t optlen = 0; 10307c478bd9Sstevel@tonic-gate t_uscalar_t len; 10317c478bd9Sstevel@tonic-gate 10327c478bd9Sstevel@tonic-gate if (control == NULL) 10337c478bd9Sstevel@tonic-gate return (0); 10347c478bd9Sstevel@tonic-gate 10357c478bd9Sstevel@tonic-gate if (oldflg) 10367c478bd9Sstevel@tonic-gate return ((t_uscalar_t)(sizeof (struct T_opthdr) + 10377c478bd9Sstevel@tonic-gate fdbuf_optlen(controllen))); 10387c478bd9Sstevel@tonic-gate 10397c478bd9Sstevel@tonic-gate for (cmsg = (struct cmsghdr *)control; 10407c478bd9Sstevel@tonic-gate CMSG_VALID(cmsg, control, (uintptr_t)control + controllen); 10417c478bd9Sstevel@tonic-gate cmsg = CMSG_NEXT(cmsg)) { 10427c478bd9Sstevel@tonic-gate if (cmsg->cmsg_level == SOL_SOCKET && 10437c478bd9Sstevel@tonic-gate cmsg->cmsg_type == SCM_RIGHTS) { 10447c478bd9Sstevel@tonic-gate len = fdbuf_optlen((int)CMSG_CONTENTLEN(cmsg)); 10457c478bd9Sstevel@tonic-gate } else { 10467c478bd9Sstevel@tonic-gate len = (t_uscalar_t)CMSG_CONTENTLEN(cmsg); 10477c478bd9Sstevel@tonic-gate } 10487c478bd9Sstevel@tonic-gate optlen += (t_uscalar_t)(_TPI_ALIGN_TOPT(len) + 10497c478bd9Sstevel@tonic-gate sizeof (struct T_opthdr)); 10507c478bd9Sstevel@tonic-gate } 10517c478bd9Sstevel@tonic-gate dprint(1, ("so_optlen: controllen %d, flg %d -> optlen %d\n", 10527c478bd9Sstevel@tonic-gate controllen, oldflg, optlen)); 10537c478bd9Sstevel@tonic-gate return (optlen); 10547c478bd9Sstevel@tonic-gate } 10557c478bd9Sstevel@tonic-gate 10567c478bd9Sstevel@tonic-gate /* 10577c478bd9Sstevel@tonic-gate * Copy options from control to the mblk. Skip any file descriptor options. 10587c478bd9Sstevel@tonic-gate */ 10597c478bd9Sstevel@tonic-gate void 10607c478bd9Sstevel@tonic-gate so_cmsg2opt(void *control, t_uscalar_t controllen, int oldflg, mblk_t *mp) 10617c478bd9Sstevel@tonic-gate { 10627c478bd9Sstevel@tonic-gate struct T_opthdr toh; 10637c478bd9Sstevel@tonic-gate struct cmsghdr *cmsg; 10647c478bd9Sstevel@tonic-gate 10657c478bd9Sstevel@tonic-gate if (control == NULL) 10667c478bd9Sstevel@tonic-gate return; 10677c478bd9Sstevel@tonic-gate 10687c478bd9Sstevel@tonic-gate if (oldflg) { 10697c478bd9Sstevel@tonic-gate /* No real options - caller has handled file descriptors */ 10707c478bd9Sstevel@tonic-gate return; 10717c478bd9Sstevel@tonic-gate } 10727c478bd9Sstevel@tonic-gate for (cmsg = (struct cmsghdr *)control; 10737c478bd9Sstevel@tonic-gate CMSG_VALID(cmsg, control, (uintptr_t)control + controllen); 10747c478bd9Sstevel@tonic-gate cmsg = CMSG_NEXT(cmsg)) { 10757c478bd9Sstevel@tonic-gate /* 10767c478bd9Sstevel@tonic-gate * Note: The caller handles file descriptors prior 10777c478bd9Sstevel@tonic-gate * to calling this function. 10787c478bd9Sstevel@tonic-gate */ 10797c478bd9Sstevel@tonic-gate t_uscalar_t len; 10807c478bd9Sstevel@tonic-gate 10817c478bd9Sstevel@tonic-gate if (cmsg->cmsg_level == SOL_SOCKET && 10827c478bd9Sstevel@tonic-gate cmsg->cmsg_type == SCM_RIGHTS) 10837c478bd9Sstevel@tonic-gate continue; 10847c478bd9Sstevel@tonic-gate 10857c478bd9Sstevel@tonic-gate len = (t_uscalar_t)CMSG_CONTENTLEN(cmsg); 10867c478bd9Sstevel@tonic-gate toh.level = cmsg->cmsg_level; 10877c478bd9Sstevel@tonic-gate toh.name = cmsg->cmsg_type; 10887c478bd9Sstevel@tonic-gate toh.len = len + (t_uscalar_t)sizeof (struct T_opthdr); 10897c478bd9Sstevel@tonic-gate toh.status = 0; 10907c478bd9Sstevel@tonic-gate 10917c478bd9Sstevel@tonic-gate soappendmsg(mp, &toh, sizeof (toh)); 10927c478bd9Sstevel@tonic-gate soappendmsg(mp, CMSG_CONTENT(cmsg), len); 10937c478bd9Sstevel@tonic-gate mp->b_wptr += _TPI_ALIGN_TOPT(len) - len; 10947c478bd9Sstevel@tonic-gate ASSERT(mp->b_wptr <= mp->b_datap->db_lim); 10957c478bd9Sstevel@tonic-gate } 10967c478bd9Sstevel@tonic-gate } 10977c478bd9Sstevel@tonic-gate 10987c478bd9Sstevel@tonic-gate /* 10997c478bd9Sstevel@tonic-gate * Return the length of the control message derived from the options. 11007c478bd9Sstevel@tonic-gate * Exclude SO_SRCADDR and SO_UNIX_CLOSE options. Include SO_FILEP. 11017c478bd9Sstevel@tonic-gate * When oldflg is set only include SO_FILEP. 11020d204002Sgt145670 * so_opt2cmsg and so_cmsglen are inter-related since so_cmsglen 11030d204002Sgt145670 * allocates the space that so_opt2cmsg fills. If one changes, the other should 11040d204002Sgt145670 * also be checked for any possible impacts. 11057c478bd9Sstevel@tonic-gate */ 11067c478bd9Sstevel@tonic-gate t_uscalar_t 11077c478bd9Sstevel@tonic-gate so_cmsglen(mblk_t *mp, void *opt, t_uscalar_t optlen, int oldflg) 11087c478bd9Sstevel@tonic-gate { 11097c478bd9Sstevel@tonic-gate t_uscalar_t cmsglen = 0; 11107c478bd9Sstevel@tonic-gate struct T_opthdr *tohp; 11117c478bd9Sstevel@tonic-gate t_uscalar_t len; 11127c478bd9Sstevel@tonic-gate t_uscalar_t last_roundup = 0; 11137c478bd9Sstevel@tonic-gate 11147c478bd9Sstevel@tonic-gate ASSERT(__TPI_TOPT_ISALIGNED(opt)); 11157c478bd9Sstevel@tonic-gate 11167c478bd9Sstevel@tonic-gate for (tohp = (struct T_opthdr *)opt; 11177c478bd9Sstevel@tonic-gate tohp && _TPI_TOPT_VALID(tohp, opt, (uintptr_t)opt + optlen); 11187c478bd9Sstevel@tonic-gate tohp = _TPI_TOPT_NEXTHDR(opt, optlen, tohp)) { 11197c478bd9Sstevel@tonic-gate dprint(1, ("so_cmsglen: level 0x%x, name %d, len %d\n", 11207c478bd9Sstevel@tonic-gate tohp->level, tohp->name, tohp->len)); 11217c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && 11227c478bd9Sstevel@tonic-gate (tohp->name == SO_SRCADDR || 11237c478bd9Sstevel@tonic-gate tohp->name == SO_UNIX_CLOSE)) { 11247c478bd9Sstevel@tonic-gate continue; 11257c478bd9Sstevel@tonic-gate } 11267c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && tohp->name == SO_FILEP) { 11277c478bd9Sstevel@tonic-gate struct fdbuf *fdbuf; 11287c478bd9Sstevel@tonic-gate int fdbuflen; 11297c478bd9Sstevel@tonic-gate 11307c478bd9Sstevel@tonic-gate fdbuf = (struct fdbuf *)_TPI_TOPT_DATA(tohp); 11317c478bd9Sstevel@tonic-gate fdbuflen = (int)_TPI_TOPT_DATALEN(tohp); 11327c478bd9Sstevel@tonic-gate 11337c478bd9Sstevel@tonic-gate if (!fdbuf_verify(mp, fdbuf, fdbuflen)) 11347c478bd9Sstevel@tonic-gate continue; 11357c478bd9Sstevel@tonic-gate if (oldflg) { 11367c478bd9Sstevel@tonic-gate cmsglen += fdbuf_cmsglen(fdbuflen); 11377c478bd9Sstevel@tonic-gate continue; 11387c478bd9Sstevel@tonic-gate } 11397c478bd9Sstevel@tonic-gate len = fdbuf_cmsglen(fdbuflen); 11400d204002Sgt145670 } else if (tohp->level == SOL_SOCKET && 11410d204002Sgt145670 tohp->name == SCM_TIMESTAMP) { 11420d204002Sgt145670 if (oldflg) 11430d204002Sgt145670 continue; 11440d204002Sgt145670 11450d204002Sgt145670 if (get_udatamodel() == DATAMODEL_NATIVE) { 11460d204002Sgt145670 len = sizeof (struct timeval); 11470d204002Sgt145670 } else { 11480d204002Sgt145670 len = sizeof (struct timeval32); 11490d204002Sgt145670 } 11507c478bd9Sstevel@tonic-gate } else { 11517c478bd9Sstevel@tonic-gate if (oldflg) 11527c478bd9Sstevel@tonic-gate continue; 11537c478bd9Sstevel@tonic-gate len = (t_uscalar_t)_TPI_TOPT_DATALEN(tohp); 11547c478bd9Sstevel@tonic-gate } 11557c478bd9Sstevel@tonic-gate /* 11560d204002Sgt145670 * Exclude roundup for last option to not set 11577c478bd9Sstevel@tonic-gate * MSG_CTRUNC when the cmsg fits but the padding doesn't fit. 11587c478bd9Sstevel@tonic-gate */ 11597c478bd9Sstevel@tonic-gate last_roundup = (t_uscalar_t) 11607c478bd9Sstevel@tonic-gate (ROUNDUP_cmsglen(len + (int)sizeof (struct cmsghdr)) - 11617c478bd9Sstevel@tonic-gate (len + (int)sizeof (struct cmsghdr))); 11627c478bd9Sstevel@tonic-gate cmsglen += (t_uscalar_t)(len + (int)sizeof (struct cmsghdr)) + 11637c478bd9Sstevel@tonic-gate last_roundup; 11647c478bd9Sstevel@tonic-gate } 11657c478bd9Sstevel@tonic-gate cmsglen -= last_roundup; 11667c478bd9Sstevel@tonic-gate dprint(1, ("so_cmsglen: optlen %d, flg %d -> cmsglen %d\n", 11677c478bd9Sstevel@tonic-gate optlen, oldflg, cmsglen)); 11687c478bd9Sstevel@tonic-gate return (cmsglen); 11697c478bd9Sstevel@tonic-gate } 11707c478bd9Sstevel@tonic-gate 11717c478bd9Sstevel@tonic-gate /* 11727c478bd9Sstevel@tonic-gate * Copy options from options to the control. Convert SO_FILEP to 11737c478bd9Sstevel@tonic-gate * file descriptors. 11747c478bd9Sstevel@tonic-gate * Returns errno or zero. 11750d204002Sgt145670 * so_opt2cmsg and so_cmsglen are inter-related since so_cmsglen 11760d204002Sgt145670 * allocates the space that so_opt2cmsg fills. If one changes, the other should 11770d204002Sgt145670 * also be checked for any possible impacts. 11787c478bd9Sstevel@tonic-gate */ 11797c478bd9Sstevel@tonic-gate int 11807c478bd9Sstevel@tonic-gate so_opt2cmsg(mblk_t *mp, void *opt, t_uscalar_t optlen, int oldflg, 11817c478bd9Sstevel@tonic-gate void *control, t_uscalar_t controllen) 11827c478bd9Sstevel@tonic-gate { 11837c478bd9Sstevel@tonic-gate struct T_opthdr *tohp; 11847c478bd9Sstevel@tonic-gate struct cmsghdr *cmsg; 11857c478bd9Sstevel@tonic-gate struct fdbuf *fdbuf; 11867c478bd9Sstevel@tonic-gate int fdbuflen; 11877c478bd9Sstevel@tonic-gate int error; 11880d204002Sgt145670 #if defined(DEBUG) || defined(__lint) 11890d204002Sgt145670 struct cmsghdr *cend = (struct cmsghdr *) 11900d204002Sgt145670 (((uint8_t *)control) + ROUNDUP_cmsglen(controllen)); 11910d204002Sgt145670 #endif 11927c478bd9Sstevel@tonic-gate cmsg = (struct cmsghdr *)control; 11937c478bd9Sstevel@tonic-gate 11947c478bd9Sstevel@tonic-gate ASSERT(__TPI_TOPT_ISALIGNED(opt)); 11957c478bd9Sstevel@tonic-gate 11967c478bd9Sstevel@tonic-gate for (tohp = (struct T_opthdr *)opt; 11977c478bd9Sstevel@tonic-gate tohp && _TPI_TOPT_VALID(tohp, opt, (uintptr_t)opt + optlen); 11987c478bd9Sstevel@tonic-gate tohp = _TPI_TOPT_NEXTHDR(opt, optlen, tohp)) { 11997c478bd9Sstevel@tonic-gate dprint(1, ("so_opt2cmsg: level 0x%x, name %d, len %d\n", 12007c478bd9Sstevel@tonic-gate tohp->level, tohp->name, tohp->len)); 12017c478bd9Sstevel@tonic-gate 12027c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && 12037c478bd9Sstevel@tonic-gate (tohp->name == SO_SRCADDR || 12047c478bd9Sstevel@tonic-gate tohp->name == SO_UNIX_CLOSE)) { 12057c478bd9Sstevel@tonic-gate continue; 12067c478bd9Sstevel@tonic-gate } 12077c478bd9Sstevel@tonic-gate ASSERT((uintptr_t)cmsg <= (uintptr_t)control + controllen); 12087c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && tohp->name == SO_FILEP) { 12097c478bd9Sstevel@tonic-gate fdbuf = (struct fdbuf *)_TPI_TOPT_DATA(tohp); 12107c478bd9Sstevel@tonic-gate fdbuflen = (int)_TPI_TOPT_DATALEN(tohp); 12117c478bd9Sstevel@tonic-gate 12127c478bd9Sstevel@tonic-gate if (!fdbuf_verify(mp, fdbuf, fdbuflen)) 12137c478bd9Sstevel@tonic-gate return (EPROTO); 12147c478bd9Sstevel@tonic-gate if (oldflg) { 12157c478bd9Sstevel@tonic-gate error = fdbuf_extract(fdbuf, control, 12167c478bd9Sstevel@tonic-gate (int)controllen); 12177c478bd9Sstevel@tonic-gate if (error != 0) 12187c478bd9Sstevel@tonic-gate return (error); 12197c478bd9Sstevel@tonic-gate continue; 12207c478bd9Sstevel@tonic-gate } else { 12217c478bd9Sstevel@tonic-gate int fdlen; 12227c478bd9Sstevel@tonic-gate 12237c478bd9Sstevel@tonic-gate fdlen = (int)fdbuf_cmsglen( 12247c478bd9Sstevel@tonic-gate (int)_TPI_TOPT_DATALEN(tohp)); 12257c478bd9Sstevel@tonic-gate 12267c478bd9Sstevel@tonic-gate cmsg->cmsg_level = tohp->level; 12277c478bd9Sstevel@tonic-gate cmsg->cmsg_type = SCM_RIGHTS; 12287c478bd9Sstevel@tonic-gate cmsg->cmsg_len = (socklen_t)(fdlen + 12297c478bd9Sstevel@tonic-gate sizeof (struct cmsghdr)); 12307c478bd9Sstevel@tonic-gate 12317c478bd9Sstevel@tonic-gate error = fdbuf_extract(fdbuf, 12327c478bd9Sstevel@tonic-gate CMSG_CONTENT(cmsg), fdlen); 12337c478bd9Sstevel@tonic-gate if (error != 0) 12347c478bd9Sstevel@tonic-gate return (error); 12357c478bd9Sstevel@tonic-gate } 1236e4f35dbaSgt145670 } else if (tohp->level == SOL_SOCKET && 1237e4f35dbaSgt145670 tohp->name == SCM_TIMESTAMP) { 1238e4f35dbaSgt145670 timestruc_t *timestamp; 1239e4f35dbaSgt145670 1240e4f35dbaSgt145670 if (oldflg) 1241e4f35dbaSgt145670 continue; 1242e4f35dbaSgt145670 1243e4f35dbaSgt145670 cmsg->cmsg_level = tohp->level; 1244e4f35dbaSgt145670 cmsg->cmsg_type = tohp->name; 1245e4f35dbaSgt145670 1246e4f35dbaSgt145670 timestamp = 1247e4f35dbaSgt145670 (timestruc_t *)P2ROUNDUP((intptr_t)&tohp[1], 1248e4f35dbaSgt145670 sizeof (intptr_t)); 1249e4f35dbaSgt145670 1250e4f35dbaSgt145670 if (get_udatamodel() == DATAMODEL_NATIVE) { 12510d204002Sgt145670 struct timeval tv; 1252e4f35dbaSgt145670 1253e4f35dbaSgt145670 cmsg->cmsg_len = sizeof (struct timeval) + 1254e4f35dbaSgt145670 sizeof (struct cmsghdr); 12550d204002Sgt145670 tv.tv_sec = timestamp->tv_sec; 12560d204002Sgt145670 tv.tv_usec = timestamp->tv_nsec / 12570d204002Sgt145670 (NANOSEC / MICROSEC); 12580d204002Sgt145670 /* 12590d204002Sgt145670 * on LP64 systems, the struct timeval in 12600d204002Sgt145670 * the destination will not be 8-byte aligned, 12610d204002Sgt145670 * so use bcopy to avoid alignment trouble 12620d204002Sgt145670 */ 12630d204002Sgt145670 bcopy(&tv, CMSG_CONTENT(cmsg), sizeof (tv)); 1264e4f35dbaSgt145670 } else { 1265e4f35dbaSgt145670 struct timeval32 *time32; 1266e4f35dbaSgt145670 1267e4f35dbaSgt145670 cmsg->cmsg_len = sizeof (struct timeval32) + 1268e4f35dbaSgt145670 sizeof (struct cmsghdr); 1269e4f35dbaSgt145670 time32 = (struct timeval32 *)CMSG_CONTENT(cmsg); 1270e4f35dbaSgt145670 time32->tv_sec = (time32_t)timestamp->tv_sec; 1271e4f35dbaSgt145670 time32->tv_usec = 1272e4f35dbaSgt145670 (int32_t)(timestamp->tv_nsec / 1273e4f35dbaSgt145670 (NANOSEC / MICROSEC)); 1274e4f35dbaSgt145670 } 1275e4f35dbaSgt145670 12767c478bd9Sstevel@tonic-gate } else { 12777c478bd9Sstevel@tonic-gate if (oldflg) 12787c478bd9Sstevel@tonic-gate continue; 12797c478bd9Sstevel@tonic-gate 12807c478bd9Sstevel@tonic-gate cmsg->cmsg_level = tohp->level; 12817c478bd9Sstevel@tonic-gate cmsg->cmsg_type = tohp->name; 12827c478bd9Sstevel@tonic-gate cmsg->cmsg_len = (socklen_t)(_TPI_TOPT_DATALEN(tohp) + 12837c478bd9Sstevel@tonic-gate sizeof (struct cmsghdr)); 12847c478bd9Sstevel@tonic-gate 12857c478bd9Sstevel@tonic-gate /* copy content to control data part */ 12867c478bd9Sstevel@tonic-gate bcopy(&tohp[1], CMSG_CONTENT(cmsg), 12877c478bd9Sstevel@tonic-gate CMSG_CONTENTLEN(cmsg)); 12887c478bd9Sstevel@tonic-gate } 12897c478bd9Sstevel@tonic-gate /* move to next CMSG structure! */ 12907c478bd9Sstevel@tonic-gate cmsg = CMSG_NEXT(cmsg); 12917c478bd9Sstevel@tonic-gate } 12920d204002Sgt145670 dprint(1, ("so_opt2cmsg: buf %p len %d; cend %p; final cmsg %p\n", 1293903a11ebSrh87107 control, controllen, (void *)cend, (void *)cmsg)); 12940d204002Sgt145670 ASSERT(cmsg <= cend); 12957c478bd9Sstevel@tonic-gate return (0); 12967c478bd9Sstevel@tonic-gate } 12977c478bd9Sstevel@tonic-gate 12987c478bd9Sstevel@tonic-gate /* 12997c478bd9Sstevel@tonic-gate * Extract the SO_SRCADDR option value if present. 13007c478bd9Sstevel@tonic-gate */ 13017c478bd9Sstevel@tonic-gate void 13027c478bd9Sstevel@tonic-gate so_getopt_srcaddr(void *opt, t_uscalar_t optlen, void **srcp, 13037c478bd9Sstevel@tonic-gate t_uscalar_t *srclenp) 13047c478bd9Sstevel@tonic-gate { 13057c478bd9Sstevel@tonic-gate struct T_opthdr *tohp; 13067c478bd9Sstevel@tonic-gate 13077c478bd9Sstevel@tonic-gate ASSERT(__TPI_TOPT_ISALIGNED(opt)); 13087c478bd9Sstevel@tonic-gate 13097c478bd9Sstevel@tonic-gate ASSERT(srcp != NULL && srclenp != NULL); 13107c478bd9Sstevel@tonic-gate *srcp = NULL; 13117c478bd9Sstevel@tonic-gate *srclenp = 0; 13127c478bd9Sstevel@tonic-gate 13137c478bd9Sstevel@tonic-gate for (tohp = (struct T_opthdr *)opt; 13147c478bd9Sstevel@tonic-gate tohp && _TPI_TOPT_VALID(tohp, opt, (uintptr_t)opt + optlen); 13157c478bd9Sstevel@tonic-gate tohp = _TPI_TOPT_NEXTHDR(opt, optlen, tohp)) { 13167c478bd9Sstevel@tonic-gate dprint(1, ("so_getopt_srcaddr: level 0x%x, name %d, len %d\n", 13177c478bd9Sstevel@tonic-gate tohp->level, tohp->name, tohp->len)); 13187c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && 13197c478bd9Sstevel@tonic-gate tohp->name == SO_SRCADDR) { 13207c478bd9Sstevel@tonic-gate *srcp = _TPI_TOPT_DATA(tohp); 13217c478bd9Sstevel@tonic-gate *srclenp = (t_uscalar_t)_TPI_TOPT_DATALEN(tohp); 13227c478bd9Sstevel@tonic-gate } 13237c478bd9Sstevel@tonic-gate } 13247c478bd9Sstevel@tonic-gate } 13257c478bd9Sstevel@tonic-gate 13267c478bd9Sstevel@tonic-gate /* 13277c478bd9Sstevel@tonic-gate * Verify if the SO_UNIX_CLOSE option is present. 13287c478bd9Sstevel@tonic-gate */ 13297c478bd9Sstevel@tonic-gate int 13307c478bd9Sstevel@tonic-gate so_getopt_unix_close(void *opt, t_uscalar_t optlen) 13317c478bd9Sstevel@tonic-gate { 13327c478bd9Sstevel@tonic-gate struct T_opthdr *tohp; 13337c478bd9Sstevel@tonic-gate 13347c478bd9Sstevel@tonic-gate ASSERT(__TPI_TOPT_ISALIGNED(opt)); 13357c478bd9Sstevel@tonic-gate 13367c478bd9Sstevel@tonic-gate for (tohp = (struct T_opthdr *)opt; 13377c478bd9Sstevel@tonic-gate tohp && _TPI_TOPT_VALID(tohp, opt, (uintptr_t)opt + optlen); 13387c478bd9Sstevel@tonic-gate tohp = _TPI_TOPT_NEXTHDR(opt, optlen, tohp)) { 13397c478bd9Sstevel@tonic-gate dprint(1, 13407c478bd9Sstevel@tonic-gate ("so_getopt_unix_close: level 0x%x, name %d, len %d\n", 13417c478bd9Sstevel@tonic-gate tohp->level, tohp->name, tohp->len)); 13427c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && 13437c478bd9Sstevel@tonic-gate tohp->name == SO_UNIX_CLOSE) 13447c478bd9Sstevel@tonic-gate return (1); 13457c478bd9Sstevel@tonic-gate } 13467c478bd9Sstevel@tonic-gate return (0); 13477c478bd9Sstevel@tonic-gate } 13487c478bd9Sstevel@tonic-gate 13497c478bd9Sstevel@tonic-gate /* 13507c478bd9Sstevel@tonic-gate * Allocate an M_PROTO message. 13517c478bd9Sstevel@tonic-gate * 13527c478bd9Sstevel@tonic-gate * If allocation fails the behavior depends on sleepflg: 13537c478bd9Sstevel@tonic-gate * _ALLOC_NOSLEEP fail immediately 13547c478bd9Sstevel@tonic-gate * _ALLOC_INTR sleep for memory until a signal is caught 13557c478bd9Sstevel@tonic-gate * _ALLOC_SLEEP sleep forever. Don't return NULL. 13567c478bd9Sstevel@tonic-gate */ 13577c478bd9Sstevel@tonic-gate mblk_t * 1358de8c4a14SErik Nordmark soallocproto(size_t size, int sleepflg, cred_t *cr) 13597c478bd9Sstevel@tonic-gate { 13607c478bd9Sstevel@tonic-gate mblk_t *mp; 13617c478bd9Sstevel@tonic-gate 13627c478bd9Sstevel@tonic-gate /* Round up size for reuse */ 13637c478bd9Sstevel@tonic-gate size = MAX(size, 64); 1364de8c4a14SErik Nordmark if (cr != NULL) 1365de8c4a14SErik Nordmark mp = allocb_cred(size, cr, curproc->p_pid); 1366de8c4a14SErik Nordmark else 13677c478bd9Sstevel@tonic-gate mp = allocb(size, BPRI_MED); 1368de8c4a14SErik Nordmark 13697c478bd9Sstevel@tonic-gate if (mp == NULL) { 13707c478bd9Sstevel@tonic-gate int error; /* Dummy - error not returned to caller */ 13717c478bd9Sstevel@tonic-gate 13727c478bd9Sstevel@tonic-gate switch (sleepflg) { 13737c478bd9Sstevel@tonic-gate case _ALLOC_SLEEP: 1374de8c4a14SErik Nordmark if (cr != NULL) { 1375de8c4a14SErik Nordmark mp = allocb_cred_wait(size, STR_NOSIG, &error, 1376de8c4a14SErik Nordmark cr, curproc->p_pid); 1377de8c4a14SErik Nordmark } else { 1378de8c4a14SErik Nordmark mp = allocb_wait(size, BPRI_MED, STR_NOSIG, 1379de8c4a14SErik Nordmark &error); 1380de8c4a14SErik Nordmark } 13817c478bd9Sstevel@tonic-gate ASSERT(mp); 13827c478bd9Sstevel@tonic-gate break; 13837c478bd9Sstevel@tonic-gate case _ALLOC_INTR: 1384de8c4a14SErik Nordmark if (cr != NULL) { 1385de8c4a14SErik Nordmark mp = allocb_cred_wait(size, 0, &error, cr, 1386de8c4a14SErik Nordmark curproc->p_pid); 1387de8c4a14SErik Nordmark } else { 13887c478bd9Sstevel@tonic-gate mp = allocb_wait(size, BPRI_MED, 0, &error); 1389de8c4a14SErik Nordmark } 13907c478bd9Sstevel@tonic-gate if (mp == NULL) { 13917c478bd9Sstevel@tonic-gate /* Caught signal while sleeping for memory */ 13927c478bd9Sstevel@tonic-gate eprintline(ENOBUFS); 13937c478bd9Sstevel@tonic-gate return (NULL); 13947c478bd9Sstevel@tonic-gate } 13957c478bd9Sstevel@tonic-gate break; 13967c478bd9Sstevel@tonic-gate case _ALLOC_NOSLEEP: 13977c478bd9Sstevel@tonic-gate default: 13987c478bd9Sstevel@tonic-gate eprintline(ENOBUFS); 13997c478bd9Sstevel@tonic-gate return (NULL); 14007c478bd9Sstevel@tonic-gate } 14017c478bd9Sstevel@tonic-gate } 14027c478bd9Sstevel@tonic-gate DB_TYPE(mp) = M_PROTO; 14037c478bd9Sstevel@tonic-gate return (mp); 14047c478bd9Sstevel@tonic-gate } 14057c478bd9Sstevel@tonic-gate 14067c478bd9Sstevel@tonic-gate /* 14077c478bd9Sstevel@tonic-gate * Allocate an M_PROTO message with a single component. 14087c478bd9Sstevel@tonic-gate * len is the length of buf. size is the amount to allocate. 14097c478bd9Sstevel@tonic-gate * 14107c478bd9Sstevel@tonic-gate * buf can be NULL with a non-zero len. 14117c478bd9Sstevel@tonic-gate * This results in a bzero'ed chunk being placed the message. 14127c478bd9Sstevel@tonic-gate */ 14137c478bd9Sstevel@tonic-gate mblk_t * 1414de8c4a14SErik Nordmark soallocproto1(const void *buf, ssize_t len, ssize_t size, int sleepflg, 1415de8c4a14SErik Nordmark cred_t *cr) 14167c478bd9Sstevel@tonic-gate { 14177c478bd9Sstevel@tonic-gate mblk_t *mp; 14187c478bd9Sstevel@tonic-gate 14197c478bd9Sstevel@tonic-gate if (size == 0) 14207c478bd9Sstevel@tonic-gate size = len; 14217c478bd9Sstevel@tonic-gate 14227c478bd9Sstevel@tonic-gate ASSERT(size >= len); 14237c478bd9Sstevel@tonic-gate /* Round up size for reuse */ 14247c478bd9Sstevel@tonic-gate size = MAX(size, 64); 1425de8c4a14SErik Nordmark mp = soallocproto(size, sleepflg, cr); 14267c478bd9Sstevel@tonic-gate if (mp == NULL) 14277c478bd9Sstevel@tonic-gate return (NULL); 14287c478bd9Sstevel@tonic-gate mp->b_datap->db_type = M_PROTO; 14297c478bd9Sstevel@tonic-gate if (len != 0) { 14307c478bd9Sstevel@tonic-gate if (buf != NULL) 14317c478bd9Sstevel@tonic-gate bcopy(buf, mp->b_wptr, len); 14327c478bd9Sstevel@tonic-gate else 14337c478bd9Sstevel@tonic-gate bzero(mp->b_wptr, len); 14347c478bd9Sstevel@tonic-gate mp->b_wptr += len; 14357c478bd9Sstevel@tonic-gate } 14367c478bd9Sstevel@tonic-gate return (mp); 14377c478bd9Sstevel@tonic-gate } 14387c478bd9Sstevel@tonic-gate 14397c478bd9Sstevel@tonic-gate /* 14407c478bd9Sstevel@tonic-gate * Append buf/len to mp. 14417c478bd9Sstevel@tonic-gate * The caller has to ensure that there is enough room in the mblk. 14427c478bd9Sstevel@tonic-gate * 14437c478bd9Sstevel@tonic-gate * buf can be NULL with a non-zero len. 14447c478bd9Sstevel@tonic-gate * This results in a bzero'ed chunk being placed the message. 14457c478bd9Sstevel@tonic-gate */ 14467c478bd9Sstevel@tonic-gate void 14477c478bd9Sstevel@tonic-gate soappendmsg(mblk_t *mp, const void *buf, ssize_t len) 14487c478bd9Sstevel@tonic-gate { 14497c478bd9Sstevel@tonic-gate ASSERT(mp); 14507c478bd9Sstevel@tonic-gate 14517c478bd9Sstevel@tonic-gate if (len != 0) { 14527c478bd9Sstevel@tonic-gate /* Assert for room left */ 14537c478bd9Sstevel@tonic-gate ASSERT(mp->b_datap->db_lim - mp->b_wptr >= len); 14547c478bd9Sstevel@tonic-gate if (buf != NULL) 14557c478bd9Sstevel@tonic-gate bcopy(buf, mp->b_wptr, len); 14567c478bd9Sstevel@tonic-gate else 14577c478bd9Sstevel@tonic-gate bzero(mp->b_wptr, len); 14587c478bd9Sstevel@tonic-gate } 14597c478bd9Sstevel@tonic-gate mp->b_wptr += len; 14607c478bd9Sstevel@tonic-gate } 14617c478bd9Sstevel@tonic-gate 14627c478bd9Sstevel@tonic-gate /* 14637c478bd9Sstevel@tonic-gate * Create a message using two kernel buffers. 14647c478bd9Sstevel@tonic-gate * If size is set that will determine the allocation size (e.g. for future 14657c478bd9Sstevel@tonic-gate * soappendmsg calls). If size is zero it is derived from the buffer 14667c478bd9Sstevel@tonic-gate * lengths. 14677c478bd9Sstevel@tonic-gate */ 14687c478bd9Sstevel@tonic-gate mblk_t * 14697c478bd9Sstevel@tonic-gate soallocproto2(const void *buf1, ssize_t len1, const void *buf2, ssize_t len2, 1470de8c4a14SErik Nordmark ssize_t size, int sleepflg, cred_t *cr) 14717c478bd9Sstevel@tonic-gate { 14727c478bd9Sstevel@tonic-gate mblk_t *mp; 14737c478bd9Sstevel@tonic-gate 14747c478bd9Sstevel@tonic-gate if (size == 0) 14757c478bd9Sstevel@tonic-gate size = len1 + len2; 14767c478bd9Sstevel@tonic-gate ASSERT(size >= len1 + len2); 14777c478bd9Sstevel@tonic-gate 1478de8c4a14SErik Nordmark mp = soallocproto1(buf1, len1, size, sleepflg, cr); 14797c478bd9Sstevel@tonic-gate if (mp) 14807c478bd9Sstevel@tonic-gate soappendmsg(mp, buf2, len2); 14817c478bd9Sstevel@tonic-gate return (mp); 14827c478bd9Sstevel@tonic-gate } 14837c478bd9Sstevel@tonic-gate 14847c478bd9Sstevel@tonic-gate /* 14857c478bd9Sstevel@tonic-gate * Create a message using three kernel buffers. 14867c478bd9Sstevel@tonic-gate * If size is set that will determine the allocation size (for future 14877c478bd9Sstevel@tonic-gate * soappendmsg calls). If size is zero it is derived from the buffer 14887c478bd9Sstevel@tonic-gate * lengths. 14897c478bd9Sstevel@tonic-gate */ 14907c478bd9Sstevel@tonic-gate mblk_t * 14917c478bd9Sstevel@tonic-gate soallocproto3(const void *buf1, ssize_t len1, const void *buf2, ssize_t len2, 1492de8c4a14SErik Nordmark const void *buf3, ssize_t len3, ssize_t size, int sleepflg, cred_t *cr) 14937c478bd9Sstevel@tonic-gate { 14947c478bd9Sstevel@tonic-gate mblk_t *mp; 14957c478bd9Sstevel@tonic-gate 14967c478bd9Sstevel@tonic-gate if (size == 0) 14977c478bd9Sstevel@tonic-gate size = len1 + len2 +len3; 14987c478bd9Sstevel@tonic-gate ASSERT(size >= len1 + len2 + len3); 14997c478bd9Sstevel@tonic-gate 1500de8c4a14SErik Nordmark mp = soallocproto1(buf1, len1, size, sleepflg, cr); 15017c478bd9Sstevel@tonic-gate if (mp != NULL) { 15027c478bd9Sstevel@tonic-gate soappendmsg(mp, buf2, len2); 15037c478bd9Sstevel@tonic-gate soappendmsg(mp, buf3, len3); 15047c478bd9Sstevel@tonic-gate } 15057c478bd9Sstevel@tonic-gate return (mp); 15067c478bd9Sstevel@tonic-gate } 15077c478bd9Sstevel@tonic-gate 15087c478bd9Sstevel@tonic-gate #ifdef DEBUG 15097c478bd9Sstevel@tonic-gate char * 15107c478bd9Sstevel@tonic-gate pr_state(uint_t state, uint_t mode) 15117c478bd9Sstevel@tonic-gate { 15127c478bd9Sstevel@tonic-gate static char buf[1024]; 15137c478bd9Sstevel@tonic-gate 15147c478bd9Sstevel@tonic-gate buf[0] = 0; 15157c478bd9Sstevel@tonic-gate if (state & SS_ISCONNECTED) 1516903a11ebSrh87107 (void) strcat(buf, "ISCONNECTED "); 15177c478bd9Sstevel@tonic-gate if (state & SS_ISCONNECTING) 1518903a11ebSrh87107 (void) strcat(buf, "ISCONNECTING "); 15197c478bd9Sstevel@tonic-gate if (state & SS_ISDISCONNECTING) 1520903a11ebSrh87107 (void) strcat(buf, "ISDISCONNECTING "); 15217c478bd9Sstevel@tonic-gate if (state & SS_CANTSENDMORE) 1522903a11ebSrh87107 (void) strcat(buf, "CANTSENDMORE "); 15237c478bd9Sstevel@tonic-gate 15247c478bd9Sstevel@tonic-gate if (state & SS_CANTRCVMORE) 1525903a11ebSrh87107 (void) strcat(buf, "CANTRCVMORE "); 15267c478bd9Sstevel@tonic-gate if (state & SS_ISBOUND) 1527903a11ebSrh87107 (void) strcat(buf, "ISBOUND "); 15287c478bd9Sstevel@tonic-gate if (state & SS_NDELAY) 1529903a11ebSrh87107 (void) strcat(buf, "NDELAY "); 15307c478bd9Sstevel@tonic-gate if (state & SS_NONBLOCK) 1531903a11ebSrh87107 (void) strcat(buf, "NONBLOCK "); 15327c478bd9Sstevel@tonic-gate 15337c478bd9Sstevel@tonic-gate if (state & SS_ASYNC) 1534903a11ebSrh87107 (void) strcat(buf, "ASYNC "); 15357c478bd9Sstevel@tonic-gate if (state & SS_ACCEPTCONN) 1536903a11ebSrh87107 (void) strcat(buf, "ACCEPTCONN "); 15377c478bd9Sstevel@tonic-gate if (state & SS_SAVEDEOR) 1538903a11ebSrh87107 (void) strcat(buf, "SAVEDEOR "); 15397c478bd9Sstevel@tonic-gate 15407c478bd9Sstevel@tonic-gate if (state & SS_RCVATMARK) 1541903a11ebSrh87107 (void) strcat(buf, "RCVATMARK "); 15427c478bd9Sstevel@tonic-gate if (state & SS_OOBPEND) 1543903a11ebSrh87107 (void) strcat(buf, "OOBPEND "); 15447c478bd9Sstevel@tonic-gate if (state & SS_HAVEOOBDATA) 1545903a11ebSrh87107 (void) strcat(buf, "HAVEOOBDATA "); 15467c478bd9Sstevel@tonic-gate if (state & SS_HADOOBDATA) 1547903a11ebSrh87107 (void) strcat(buf, "HADOOBDATA "); 15487c478bd9Sstevel@tonic-gate 15497c478bd9Sstevel@tonic-gate if (mode & SM_PRIV) 1550903a11ebSrh87107 (void) strcat(buf, "PRIV "); 15517c478bd9Sstevel@tonic-gate if (mode & SM_ATOMIC) 1552903a11ebSrh87107 (void) strcat(buf, "ATOMIC "); 15537c478bd9Sstevel@tonic-gate if (mode & SM_ADDR) 1554903a11ebSrh87107 (void) strcat(buf, "ADDR "); 15557c478bd9Sstevel@tonic-gate if (mode & SM_CONNREQUIRED) 1556903a11ebSrh87107 (void) strcat(buf, "CONNREQUIRED "); 15577c478bd9Sstevel@tonic-gate 15587c478bd9Sstevel@tonic-gate if (mode & SM_FDPASSING) 1559903a11ebSrh87107 (void) strcat(buf, "FDPASSING "); 15607c478bd9Sstevel@tonic-gate if (mode & SM_EXDATA) 1561903a11ebSrh87107 (void) strcat(buf, "EXDATA "); 15627c478bd9Sstevel@tonic-gate if (mode & SM_OPTDATA) 1563903a11ebSrh87107 (void) strcat(buf, "OPTDATA "); 15647c478bd9Sstevel@tonic-gate if (mode & SM_BYTESTREAM) 1565903a11ebSrh87107 (void) strcat(buf, "BYTESTREAM "); 15667c478bd9Sstevel@tonic-gate return (buf); 15677c478bd9Sstevel@tonic-gate } 15687c478bd9Sstevel@tonic-gate 15697c478bd9Sstevel@tonic-gate char * 15707c478bd9Sstevel@tonic-gate pr_addr(int family, struct sockaddr *addr, t_uscalar_t addrlen) 15717c478bd9Sstevel@tonic-gate { 15727c478bd9Sstevel@tonic-gate static char buf[1024]; 15737c478bd9Sstevel@tonic-gate 15747c478bd9Sstevel@tonic-gate if (addr == NULL || addrlen == 0) { 1575903a11ebSrh87107 (void) sprintf(buf, "(len %d) %p", addrlen, (void *)addr); 15767c478bd9Sstevel@tonic-gate return (buf); 15777c478bd9Sstevel@tonic-gate } 15787c478bd9Sstevel@tonic-gate switch (family) { 15797c478bd9Sstevel@tonic-gate case AF_INET: { 15807c478bd9Sstevel@tonic-gate struct sockaddr_in sin; 15817c478bd9Sstevel@tonic-gate 15827c478bd9Sstevel@tonic-gate bcopy(addr, &sin, sizeof (sin)); 15837c478bd9Sstevel@tonic-gate 15847c478bd9Sstevel@tonic-gate (void) sprintf(buf, "(len %d) %x/%d", 1585b5fca8f8Stomee addrlen, ntohl(sin.sin_addr.s_addr), ntohs(sin.sin_port)); 15867c478bd9Sstevel@tonic-gate break; 15877c478bd9Sstevel@tonic-gate } 15887c478bd9Sstevel@tonic-gate case AF_INET6: { 15897c478bd9Sstevel@tonic-gate struct sockaddr_in6 sin6; 15907c478bd9Sstevel@tonic-gate uint16_t *piece = (uint16_t *)&sin6.sin6_addr; 15917c478bd9Sstevel@tonic-gate 15927c478bd9Sstevel@tonic-gate bcopy((char *)addr, (char *)&sin6, sizeof (sin6)); 1593903a11ebSrh87107 (void) sprintf(buf, "(len %d) %x:%x:%x:%x:%x:%x:%x:%x/%d", 15947c478bd9Sstevel@tonic-gate addrlen, 15957c478bd9Sstevel@tonic-gate ntohs(piece[0]), ntohs(piece[1]), 15967c478bd9Sstevel@tonic-gate ntohs(piece[2]), ntohs(piece[3]), 15977c478bd9Sstevel@tonic-gate ntohs(piece[4]), ntohs(piece[5]), 15987c478bd9Sstevel@tonic-gate ntohs(piece[6]), ntohs(piece[7]), 15997c478bd9Sstevel@tonic-gate ntohs(sin6.sin6_port)); 16007c478bd9Sstevel@tonic-gate break; 16017c478bd9Sstevel@tonic-gate } 16027c478bd9Sstevel@tonic-gate case AF_UNIX: { 16037c478bd9Sstevel@tonic-gate struct sockaddr_un *soun = (struct sockaddr_un *)addr; 16047c478bd9Sstevel@tonic-gate 1605b5fca8f8Stomee (void) sprintf(buf, "(len %d) %s", addrlen, 16067c478bd9Sstevel@tonic-gate (soun == NULL) ? "(none)" : soun->sun_path); 16077c478bd9Sstevel@tonic-gate break; 16087c478bd9Sstevel@tonic-gate } 16097c478bd9Sstevel@tonic-gate default: 16107c478bd9Sstevel@tonic-gate (void) sprintf(buf, "(unknown af %d)", family); 16117c478bd9Sstevel@tonic-gate break; 16127c478bd9Sstevel@tonic-gate } 16137c478bd9Sstevel@tonic-gate return (buf); 16147c478bd9Sstevel@tonic-gate } 16157c478bd9Sstevel@tonic-gate 16167c478bd9Sstevel@tonic-gate /* The logical equivalence operator (a if-and-only-if b) */ 1617*56f33205SJonathan Adams #define EQUIVALENT(a, b) (((a) && (b)) || (!(a) && (!(b)))) 16187c478bd9Sstevel@tonic-gate 16197c478bd9Sstevel@tonic-gate /* 16207c478bd9Sstevel@tonic-gate * Verify limitations and invariants on oob state. 16217c478bd9Sstevel@tonic-gate * Return 1 if OK, otherwise 0 so that it can be used as 16227c478bd9Sstevel@tonic-gate * ASSERT(verify_oobstate(so)); 16237c478bd9Sstevel@tonic-gate */ 16247c478bd9Sstevel@tonic-gate int 16257c478bd9Sstevel@tonic-gate so_verify_oobstate(struct sonode *so) 16267c478bd9Sstevel@tonic-gate { 16270f1702c5SYu Xiangning boolean_t havemark; 16280f1702c5SYu Xiangning 16297c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 16307c478bd9Sstevel@tonic-gate 16317c478bd9Sstevel@tonic-gate /* 16327c478bd9Sstevel@tonic-gate * The possible state combinations are: 16337c478bd9Sstevel@tonic-gate * 0 16347c478bd9Sstevel@tonic-gate * SS_OOBPEND 16357c478bd9Sstevel@tonic-gate * SS_OOBPEND|SS_HAVEOOBDATA 16367c478bd9Sstevel@tonic-gate * SS_OOBPEND|SS_HADOOBDATA 16377c478bd9Sstevel@tonic-gate * SS_HADOOBDATA 16387c478bd9Sstevel@tonic-gate */ 16397c478bd9Sstevel@tonic-gate switch (so->so_state & (SS_OOBPEND|SS_HAVEOOBDATA|SS_HADOOBDATA)) { 16407c478bd9Sstevel@tonic-gate case 0: 16417c478bd9Sstevel@tonic-gate case SS_OOBPEND: 16427c478bd9Sstevel@tonic-gate case SS_OOBPEND|SS_HAVEOOBDATA: 16437c478bd9Sstevel@tonic-gate case SS_OOBPEND|SS_HADOOBDATA: 16447c478bd9Sstevel@tonic-gate case SS_HADOOBDATA: 16457c478bd9Sstevel@tonic-gate break; 16467c478bd9Sstevel@tonic-gate default: 16470f1702c5SYu Xiangning printf("Bad oob state 1 (%p): state %s\n", 16480f1702c5SYu Xiangning (void *)so, pr_state(so->so_state, so->so_mode)); 16497c478bd9Sstevel@tonic-gate return (0); 16507c478bd9Sstevel@tonic-gate } 16517c478bd9Sstevel@tonic-gate 16527c478bd9Sstevel@tonic-gate /* SS_RCVATMARK should only be set when SS_OOBPEND is set */ 16537c478bd9Sstevel@tonic-gate if ((so->so_state & (SS_RCVATMARK|SS_OOBPEND)) == SS_RCVATMARK) { 16540f1702c5SYu Xiangning printf("Bad oob state 2 (%p): state %s\n", 16550f1702c5SYu Xiangning (void *)so, pr_state(so->so_state, so->so_mode)); 16567c478bd9Sstevel@tonic-gate return (0); 16577c478bd9Sstevel@tonic-gate } 16587c478bd9Sstevel@tonic-gate 16597c478bd9Sstevel@tonic-gate /* 16600f1702c5SYu Xiangning * (havemark != 0 or SS_RCVATMARK) iff SS_OOBPEND 16610f1702c5SYu Xiangning * For TPI, the presence of a "mark" is indicated by sti_oobsigcnt. 16627c478bd9Sstevel@tonic-gate */ 16630f1702c5SYu Xiangning havemark = (SOCK_IS_NONSTR(so)) ? so->so_oobmark > 0 : 16640f1702c5SYu Xiangning SOTOTPI(so)->sti_oobsigcnt > 0; 16650f1702c5SYu Xiangning 1666*56f33205SJonathan Adams if (!EQUIVALENT(havemark || (so->so_state & SS_RCVATMARK), 16677c478bd9Sstevel@tonic-gate so->so_state & SS_OOBPEND)) { 16680f1702c5SYu Xiangning printf("Bad oob state 3 (%p): state %s\n", 16690f1702c5SYu Xiangning (void *)so, pr_state(so->so_state, so->so_mode)); 16707c478bd9Sstevel@tonic-gate return (0); 16717c478bd9Sstevel@tonic-gate } 16727c478bd9Sstevel@tonic-gate 16737c478bd9Sstevel@tonic-gate /* 16747c478bd9Sstevel@tonic-gate * Unless SO_OOBINLINE we have so_oobmsg != NULL iff SS_HAVEOOBDATA 16757c478bd9Sstevel@tonic-gate */ 16767c478bd9Sstevel@tonic-gate if (!(so->so_options & SO_OOBINLINE) && 1677*56f33205SJonathan Adams !EQUIVALENT(so->so_oobmsg != NULL, so->so_state & SS_HAVEOOBDATA)) { 16780f1702c5SYu Xiangning printf("Bad oob state 4 (%p): state %s\n", 16790f1702c5SYu Xiangning (void *)so, pr_state(so->so_state, so->so_mode)); 16807c478bd9Sstevel@tonic-gate return (0); 16817c478bd9Sstevel@tonic-gate } 16820f1702c5SYu Xiangning 16830f1702c5SYu Xiangning if (!SOCK_IS_NONSTR(so) && 16840f1702c5SYu Xiangning SOTOTPI(so)->sti_oobsigcnt < SOTOTPI(so)->sti_oobcnt) { 16857c478bd9Sstevel@tonic-gate printf("Bad oob state 5 (%p): counts %d/%d state %s\n", 16860f1702c5SYu Xiangning (void *)so, SOTOTPI(so)->sti_oobsigcnt, 16870f1702c5SYu Xiangning SOTOTPI(so)->sti_oobcnt, 16880f1702c5SYu Xiangning pr_state(so->so_state, so->so_mode)); 16897c478bd9Sstevel@tonic-gate return (0); 16907c478bd9Sstevel@tonic-gate } 16910f1702c5SYu Xiangning 16927c478bd9Sstevel@tonic-gate return (1); 16937c478bd9Sstevel@tonic-gate } 1694*56f33205SJonathan Adams #undef EQUIVALENT 16957c478bd9Sstevel@tonic-gate #endif /* DEBUG */ 16967c478bd9Sstevel@tonic-gate 16977c478bd9Sstevel@tonic-gate /* initialize sockfs zone specific kstat related items */ 16987c478bd9Sstevel@tonic-gate void * 16997c478bd9Sstevel@tonic-gate sock_kstat_init(zoneid_t zoneid) 17007c478bd9Sstevel@tonic-gate { 17017c478bd9Sstevel@tonic-gate kstat_t *ksp; 17027c478bd9Sstevel@tonic-gate 17037c478bd9Sstevel@tonic-gate ksp = kstat_create_zone("sockfs", 0, "sock_unix_list", "misc", 17047c478bd9Sstevel@tonic-gate KSTAT_TYPE_RAW, 0, KSTAT_FLAG_VAR_SIZE|KSTAT_FLAG_VIRTUAL, zoneid); 17057c478bd9Sstevel@tonic-gate 17067c478bd9Sstevel@tonic-gate if (ksp != NULL) { 17077c478bd9Sstevel@tonic-gate ksp->ks_update = sockfs_update; 17087c478bd9Sstevel@tonic-gate ksp->ks_snapshot = sockfs_snapshot; 17097c478bd9Sstevel@tonic-gate ksp->ks_lock = &socklist.sl_lock; 17107c478bd9Sstevel@tonic-gate ksp->ks_private = (void *)(uintptr_t)zoneid; 17117c478bd9Sstevel@tonic-gate kstat_install(ksp); 17127c478bd9Sstevel@tonic-gate } 17137c478bd9Sstevel@tonic-gate 17147c478bd9Sstevel@tonic-gate return (ksp); 17157c478bd9Sstevel@tonic-gate } 17167c478bd9Sstevel@tonic-gate 17177c478bd9Sstevel@tonic-gate /* tear down sockfs zone specific kstat related items */ 17187c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 17197c478bd9Sstevel@tonic-gate void 17207c478bd9Sstevel@tonic-gate sock_kstat_fini(zoneid_t zoneid, void *arg) 17217c478bd9Sstevel@tonic-gate { 17227c478bd9Sstevel@tonic-gate kstat_t *ksp = (kstat_t *)arg; 17237c478bd9Sstevel@tonic-gate 17247c478bd9Sstevel@tonic-gate if (ksp != NULL) { 17257c478bd9Sstevel@tonic-gate ASSERT(zoneid == (zoneid_t)(uintptr_t)ksp->ks_private); 17267c478bd9Sstevel@tonic-gate kstat_delete(ksp); 17277c478bd9Sstevel@tonic-gate } 17287c478bd9Sstevel@tonic-gate } 17297c478bd9Sstevel@tonic-gate 17307c478bd9Sstevel@tonic-gate /* 17317c478bd9Sstevel@tonic-gate * Zones: 17327c478bd9Sstevel@tonic-gate * Note that nactive is going to be different for each zone. 17337c478bd9Sstevel@tonic-gate * This means we require kstat to call sockfs_update and then sockfs_snapshot 17347c478bd9Sstevel@tonic-gate * for the same zone, or sockfs_snapshot will be taken into the wrong size 17357c478bd9Sstevel@tonic-gate * buffer. This is safe, but if the buffer is too small, user will not be 17367c478bd9Sstevel@tonic-gate * given details of all sockets. However, as this kstat has a ks_lock, kstat 17377c478bd9Sstevel@tonic-gate * driver will keep it locked between the update and the snapshot, so no 17387c478bd9Sstevel@tonic-gate * other process (zone) can currently get inbetween resulting in a wrong size 17397c478bd9Sstevel@tonic-gate * buffer allocation. 17407c478bd9Sstevel@tonic-gate */ 17417c478bd9Sstevel@tonic-gate static int 17427c478bd9Sstevel@tonic-gate sockfs_update(kstat_t *ksp, int rw) 17437c478bd9Sstevel@tonic-gate { 17447c478bd9Sstevel@tonic-gate uint_t nactive = 0; /* # of active AF_UNIX sockets */ 17457c478bd9Sstevel@tonic-gate struct sonode *so; /* current sonode on socklist */ 17467c478bd9Sstevel@tonic-gate zoneid_t myzoneid = (zoneid_t)(uintptr_t)ksp->ks_private; 17477c478bd9Sstevel@tonic-gate 17487c478bd9Sstevel@tonic-gate ASSERT((zoneid_t)(uintptr_t)ksp->ks_private == getzoneid()); 17497c478bd9Sstevel@tonic-gate 17507c478bd9Sstevel@tonic-gate if (rw == KSTAT_WRITE) { /* bounce all writes */ 17517c478bd9Sstevel@tonic-gate return (EACCES); 17527c478bd9Sstevel@tonic-gate } 17537c478bd9Sstevel@tonic-gate 17540f1702c5SYu Xiangning for (so = socklist.sl_list; so != NULL; so = SOTOTPI(so)->sti_next_so) { 17550f1702c5SYu Xiangning if (so->so_count != 0 && so->so_zoneid == myzoneid) { 17567c478bd9Sstevel@tonic-gate nactive++; 17577c478bd9Sstevel@tonic-gate } 17587c478bd9Sstevel@tonic-gate } 17597c478bd9Sstevel@tonic-gate ksp->ks_ndata = nactive; 17607c478bd9Sstevel@tonic-gate ksp->ks_data_size = nactive * sizeof (struct k_sockinfo); 17617c478bd9Sstevel@tonic-gate 17627c478bd9Sstevel@tonic-gate return (0); 17637c478bd9Sstevel@tonic-gate } 17647c478bd9Sstevel@tonic-gate 17657c478bd9Sstevel@tonic-gate static int 17667c478bd9Sstevel@tonic-gate sockfs_snapshot(kstat_t *ksp, void *buf, int rw) 17677c478bd9Sstevel@tonic-gate { 17687c478bd9Sstevel@tonic-gate int ns; /* # of sonodes we've copied */ 17697c478bd9Sstevel@tonic-gate struct sonode *so; /* current sonode on socklist */ 17707c478bd9Sstevel@tonic-gate struct k_sockinfo *pksi; /* where we put sockinfo data */ 17717c478bd9Sstevel@tonic-gate t_uscalar_t sn_len; /* soa_len */ 17727c478bd9Sstevel@tonic-gate zoneid_t myzoneid = (zoneid_t)(uintptr_t)ksp->ks_private; 17730f1702c5SYu Xiangning sotpi_info_t *sti; 17747c478bd9Sstevel@tonic-gate 17757c478bd9Sstevel@tonic-gate ASSERT((zoneid_t)(uintptr_t)ksp->ks_private == getzoneid()); 17767c478bd9Sstevel@tonic-gate 17777c478bd9Sstevel@tonic-gate ksp->ks_snaptime = gethrtime(); 17787c478bd9Sstevel@tonic-gate 17797c478bd9Sstevel@tonic-gate if (rw == KSTAT_WRITE) { /* bounce all writes */ 17807c478bd9Sstevel@tonic-gate return (EACCES); 17817c478bd9Sstevel@tonic-gate } 17827c478bd9Sstevel@tonic-gate 17837c478bd9Sstevel@tonic-gate /* 17847c478bd9Sstevel@tonic-gate * for each sonode on the socklist, we massage the important 17857c478bd9Sstevel@tonic-gate * info into buf, in k_sockinfo format. 17867c478bd9Sstevel@tonic-gate */ 17877c478bd9Sstevel@tonic-gate pksi = (struct k_sockinfo *)buf; 17880f1702c5SYu Xiangning ns = 0; 17890f1702c5SYu Xiangning for (so = socklist.sl_list; so != NULL; so = SOTOTPI(so)->sti_next_so) { 17907c478bd9Sstevel@tonic-gate /* only stuff active sonodes and the same zone: */ 17910f1702c5SYu Xiangning if (so->so_count == 0 || so->so_zoneid != myzoneid) { 17927c478bd9Sstevel@tonic-gate continue; 17937c478bd9Sstevel@tonic-gate } 17947c478bd9Sstevel@tonic-gate 17957c478bd9Sstevel@tonic-gate /* 17967c478bd9Sstevel@tonic-gate * If the sonode was activated between the update and the 17977c478bd9Sstevel@tonic-gate * snapshot, we're done - as this is only a snapshot. 17987c478bd9Sstevel@tonic-gate */ 17997c478bd9Sstevel@tonic-gate if ((caddr_t)(pksi) >= (caddr_t)buf + ksp->ks_data_size) { 18007c478bd9Sstevel@tonic-gate break; 18017c478bd9Sstevel@tonic-gate } 18027c478bd9Sstevel@tonic-gate 18030f1702c5SYu Xiangning sti = SOTOTPI(so); 18047c478bd9Sstevel@tonic-gate /* copy important info into buf: */ 18057c478bd9Sstevel@tonic-gate pksi->ks_si.si_size = sizeof (struct k_sockinfo); 18067c478bd9Sstevel@tonic-gate pksi->ks_si.si_family = so->so_family; 18077c478bd9Sstevel@tonic-gate pksi->ks_si.si_type = so->so_type; 18087c478bd9Sstevel@tonic-gate pksi->ks_si.si_flag = so->so_flag; 18097c478bd9Sstevel@tonic-gate pksi->ks_si.si_state = so->so_state; 18100f1702c5SYu Xiangning pksi->ks_si.si_serv_type = sti->sti_serv_type; 18110f1702c5SYu Xiangning pksi->ks_si.si_ux_laddr_sou_magic = 18120f1702c5SYu Xiangning sti->sti_ux_laddr.soua_magic; 18130f1702c5SYu Xiangning pksi->ks_si.si_ux_faddr_sou_magic = 18140f1702c5SYu Xiangning sti->sti_ux_faddr.soua_magic; 18150f1702c5SYu Xiangning pksi->ks_si.si_laddr_soa_len = sti->sti_laddr.soa_len; 18160f1702c5SYu Xiangning pksi->ks_si.si_faddr_soa_len = sti->sti_faddr.soa_len; 18177c478bd9Sstevel@tonic-gate pksi->ks_si.si_szoneid = so->so_zoneid; 18180f1702c5SYu Xiangning pksi->ks_si.si_faddr_noxlate = sti->sti_faddr_noxlate; 18197c478bd9Sstevel@tonic-gate 18207c478bd9Sstevel@tonic-gate mutex_enter(&so->so_lock); 18217c478bd9Sstevel@tonic-gate 18220f1702c5SYu Xiangning if (sti->sti_laddr_sa != NULL) { 18230f1702c5SYu Xiangning ASSERT(sti->sti_laddr_sa->sa_data != NULL); 18240f1702c5SYu Xiangning sn_len = sti->sti_laddr_len; 18257c478bd9Sstevel@tonic-gate ASSERT(sn_len <= sizeof (short) + 18267c478bd9Sstevel@tonic-gate sizeof (pksi->ks_si.si_laddr_sun_path)); 18277c478bd9Sstevel@tonic-gate 18287c478bd9Sstevel@tonic-gate pksi->ks_si.si_laddr_family = 18290f1702c5SYu Xiangning sti->sti_laddr_sa->sa_family; 18307c478bd9Sstevel@tonic-gate if (sn_len != 0) { 18317c478bd9Sstevel@tonic-gate /* AF_UNIX socket names are NULL terminated */ 18327c478bd9Sstevel@tonic-gate (void) strncpy(pksi->ks_si.si_laddr_sun_path, 18330f1702c5SYu Xiangning sti->sti_laddr_sa->sa_data, 18347c478bd9Sstevel@tonic-gate sizeof (pksi->ks_si.si_laddr_sun_path)); 18357c478bd9Sstevel@tonic-gate sn_len = strlen(pksi->ks_si.si_laddr_sun_path); 18367c478bd9Sstevel@tonic-gate } 18377c478bd9Sstevel@tonic-gate pksi->ks_si.si_laddr_sun_path[sn_len] = 0; 18387c478bd9Sstevel@tonic-gate } 18397c478bd9Sstevel@tonic-gate 18400f1702c5SYu Xiangning if (sti->sti_faddr_sa != NULL) { 18410f1702c5SYu Xiangning ASSERT(sti->sti_faddr_sa->sa_data != NULL); 18420f1702c5SYu Xiangning sn_len = sti->sti_faddr_len; 18437c478bd9Sstevel@tonic-gate ASSERT(sn_len <= sizeof (short) + 18447c478bd9Sstevel@tonic-gate sizeof (pksi->ks_si.si_faddr_sun_path)); 18457c478bd9Sstevel@tonic-gate 18467c478bd9Sstevel@tonic-gate pksi->ks_si.si_faddr_family = 18470f1702c5SYu Xiangning sti->sti_faddr_sa->sa_family; 18487c478bd9Sstevel@tonic-gate if (sn_len != 0) { 18497c478bd9Sstevel@tonic-gate (void) strncpy(pksi->ks_si.si_faddr_sun_path, 18500f1702c5SYu Xiangning sti->sti_faddr_sa->sa_data, 18517c478bd9Sstevel@tonic-gate sizeof (pksi->ks_si.si_faddr_sun_path)); 18527c478bd9Sstevel@tonic-gate sn_len = strlen(pksi->ks_si.si_faddr_sun_path); 18537c478bd9Sstevel@tonic-gate } 18547c478bd9Sstevel@tonic-gate pksi->ks_si.si_faddr_sun_path[sn_len] = 0; 18557c478bd9Sstevel@tonic-gate } 18567c478bd9Sstevel@tonic-gate 18577c478bd9Sstevel@tonic-gate mutex_exit(&so->so_lock); 18587c478bd9Sstevel@tonic-gate 18597c478bd9Sstevel@tonic-gate (void) sprintf(pksi->ks_straddr[0], "%p", (void *)so); 18607c478bd9Sstevel@tonic-gate (void) sprintf(pksi->ks_straddr[1], "%p", 18610f1702c5SYu Xiangning (void *)sti->sti_ux_laddr.soua_vp); 18627c478bd9Sstevel@tonic-gate (void) sprintf(pksi->ks_straddr[2], "%p", 18630f1702c5SYu Xiangning (void *)sti->sti_ux_faddr.soua_vp); 18647c478bd9Sstevel@tonic-gate 18657c478bd9Sstevel@tonic-gate ns++; 18667c478bd9Sstevel@tonic-gate pksi++; 18677c478bd9Sstevel@tonic-gate } 18687c478bd9Sstevel@tonic-gate 18697c478bd9Sstevel@tonic-gate ksp->ks_ndata = ns; 18707c478bd9Sstevel@tonic-gate return (0); 18717c478bd9Sstevel@tonic-gate } 18727c478bd9Sstevel@tonic-gate 18737c478bd9Sstevel@tonic-gate ssize_t 18747c478bd9Sstevel@tonic-gate soreadfile(file_t *fp, uchar_t *buf, u_offset_t fileoff, int *err, size_t size) 18757c478bd9Sstevel@tonic-gate { 18767c478bd9Sstevel@tonic-gate struct uio auio; 18777c478bd9Sstevel@tonic-gate struct iovec aiov[MSG_MAXIOVLEN]; 18787c478bd9Sstevel@tonic-gate register vnode_t *vp; 18797c478bd9Sstevel@tonic-gate int ioflag, rwflag; 18807c478bd9Sstevel@tonic-gate ssize_t cnt; 18817c478bd9Sstevel@tonic-gate int error = 0; 18827c478bd9Sstevel@tonic-gate int iovcnt = 0; 18837c478bd9Sstevel@tonic-gate short fflag; 18847c478bd9Sstevel@tonic-gate 18857c478bd9Sstevel@tonic-gate vp = fp->f_vnode; 18867c478bd9Sstevel@tonic-gate fflag = fp->f_flag; 18877c478bd9Sstevel@tonic-gate 18887c478bd9Sstevel@tonic-gate rwflag = 0; 18897c478bd9Sstevel@tonic-gate aiov[0].iov_base = (caddr_t)buf; 18907c478bd9Sstevel@tonic-gate aiov[0].iov_len = size; 18917c478bd9Sstevel@tonic-gate iovcnt = 1; 18927c478bd9Sstevel@tonic-gate cnt = (ssize_t)size; 18937c478bd9Sstevel@tonic-gate (void) VOP_RWLOCK(vp, rwflag, NULL); 18947c478bd9Sstevel@tonic-gate 18957c478bd9Sstevel@tonic-gate auio.uio_loffset = fileoff; 18967c478bd9Sstevel@tonic-gate auio.uio_iov = aiov; 18977c478bd9Sstevel@tonic-gate auio.uio_iovcnt = iovcnt; 18987c478bd9Sstevel@tonic-gate auio.uio_resid = cnt; 18997c478bd9Sstevel@tonic-gate auio.uio_segflg = UIO_SYSSPACE; 19007c478bd9Sstevel@tonic-gate auio.uio_llimit = MAXOFFSET_T; 19017c478bd9Sstevel@tonic-gate auio.uio_fmode = fflag; 19027c478bd9Sstevel@tonic-gate auio.uio_extflg = UIO_COPY_CACHED; 19037c478bd9Sstevel@tonic-gate 19047c478bd9Sstevel@tonic-gate ioflag = auio.uio_fmode & (FAPPEND|FSYNC|FDSYNC|FRSYNC); 19057c478bd9Sstevel@tonic-gate 19067c478bd9Sstevel@tonic-gate /* If read sync is not asked for, filter sync flags */ 19077c478bd9Sstevel@tonic-gate if ((ioflag & FRSYNC) == 0) 19087c478bd9Sstevel@tonic-gate ioflag &= ~(FSYNC|FDSYNC); 19097c478bd9Sstevel@tonic-gate error = VOP_READ(vp, &auio, ioflag, fp->f_cred, NULL); 19107c478bd9Sstevel@tonic-gate cnt -= auio.uio_resid; 19117c478bd9Sstevel@tonic-gate 19127c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(vp, rwflag, NULL); 19137c478bd9Sstevel@tonic-gate 19147c478bd9Sstevel@tonic-gate if (error == EINTR && cnt != 0) 19157c478bd9Sstevel@tonic-gate error = 0; 19167c478bd9Sstevel@tonic-gate out: 19177c478bd9Sstevel@tonic-gate if (error != 0) { 19187c478bd9Sstevel@tonic-gate *err = error; 19197c478bd9Sstevel@tonic-gate return (0); 19207c478bd9Sstevel@tonic-gate } else { 19217c478bd9Sstevel@tonic-gate *err = 0; 19227c478bd9Sstevel@tonic-gate return (cnt); 19237c478bd9Sstevel@tonic-gate } 19247c478bd9Sstevel@tonic-gate } 19250f1702c5SYu Xiangning 19260f1702c5SYu Xiangning int 19270f1702c5SYu Xiangning so_copyin(const void *from, void *to, size_t size, int fromkernel) 19280f1702c5SYu Xiangning { 19290f1702c5SYu Xiangning if (fromkernel) { 19300f1702c5SYu Xiangning bcopy(from, to, size); 19310f1702c5SYu Xiangning return (0); 19320f1702c5SYu Xiangning } 19330f1702c5SYu Xiangning return (xcopyin(from, to, size)); 19340f1702c5SYu Xiangning } 19350f1702c5SYu Xiangning 19360f1702c5SYu Xiangning int 19370f1702c5SYu Xiangning so_copyout(const void *from, void *to, size_t size, int tokernel) 19380f1702c5SYu Xiangning { 19390f1702c5SYu Xiangning if (tokernel) { 19400f1702c5SYu Xiangning bcopy(from, to, size); 19410f1702c5SYu Xiangning return (0); 19420f1702c5SYu Xiangning } 19430f1702c5SYu Xiangning return (xcopyout(from, to, size)); 19440f1702c5SYu Xiangning } 1945