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 /* 23311e3d4cSgeorges * Copyright 2008 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> 377c478bd9Sstevel@tonic-gate #include <sys/vnode.h> 387c478bd9Sstevel@tonic-gate #include <sys/debug.h> 397c478bd9Sstevel@tonic-gate #include <sys/errno.h> 407c478bd9Sstevel@tonic-gate #include <sys/time.h> 417c478bd9Sstevel@tonic-gate #include <sys/file.h> 427c478bd9Sstevel@tonic-gate #include <sys/open.h> 437c478bd9Sstevel@tonic-gate #include <sys/user.h> 447c478bd9Sstevel@tonic-gate #include <sys/termios.h> 457c478bd9Sstevel@tonic-gate #include <sys/stream.h> 467c478bd9Sstevel@tonic-gate #include <sys/strsubr.h> 4774024373Spr #include <sys/sunddi.h> 487c478bd9Sstevel@tonic-gate #include <sys/esunddi.h> 497c478bd9Sstevel@tonic-gate #include <sys/flock.h> 507c478bd9Sstevel@tonic-gate #include <sys/modctl.h> 517c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h> 527c478bd9Sstevel@tonic-gate #include <sys/vmsystm.h> 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate #include <sys/socket.h> 557c478bd9Sstevel@tonic-gate #include <sys/socketvar.h> 56*0f1702c5SYu Xiangning #include <fs/sockfs/sockcommon.h> 57*0f1702c5SYu Xiangning #include <fs/sockfs/socktpi.h> 5845916cd2Sjpk 597c478bd9Sstevel@tonic-gate #include <netinet/in.h> 607c478bd9Sstevel@tonic-gate #include <sys/sendfile.h> 617c478bd9Sstevel@tonic-gate #include <sys/un.h> 627c478bd9Sstevel@tonic-gate #include <sys/tihdr.h> 637c478bd9Sstevel@tonic-gate #include <sys/atomic.h> 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate #include <inet/common.h> 667c478bd9Sstevel@tonic-gate #include <inet/ip.h> 677c478bd9Sstevel@tonic-gate #include <inet/ip6.h> 687c478bd9Sstevel@tonic-gate #include <inet/tcp.h> 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate extern int sosendfile64(file_t *, file_t *, const struct ksendfilevec64 *, 717c478bd9Sstevel@tonic-gate ssize32_t *); 722c9e429eSbrutus extern int nl7c_sendfilev(struct sonode *, u_offset_t *, struct sendfilevec *, 732c9e429eSbrutus int, ssize_t *); 743b3d24f3SJayakara Kini extern int snf_segmap(file_t *, vnode_t *, u_offset_t, u_offset_t, ssize_t *, 753b3d24f3SJayakara Kini boolean_t); 76*0f1702c5SYu Xiangning extern sotpi_info_t *sotpi_sototpi(struct sonode *); 7774024373Spr 7874024373Spr #define readflg (V_WRITELOCK_FALSE) 7974024373Spr #define rwflag (V_WRITELOCK_TRUE) 807c478bd9Sstevel@tonic-gate 817c478bd9Sstevel@tonic-gate #define SEND_MAX_CHUNK 16 827c478bd9Sstevel@tonic-gate 837c478bd9Sstevel@tonic-gate #if defined(_SYSCALL32_IMPL) || defined(_ILP32) 847c478bd9Sstevel@tonic-gate /* 857c478bd9Sstevel@tonic-gate * 64 bit offsets for 32 bit applications only running either on 867c478bd9Sstevel@tonic-gate * 64 bit kernel or 32 bit kernel. For 32 bit apps, we can't transfer 877c478bd9Sstevel@tonic-gate * more than 2GB of data. 887c478bd9Sstevel@tonic-gate */ 897c478bd9Sstevel@tonic-gate int 907c478bd9Sstevel@tonic-gate sendvec_chunk64(file_t *fp, u_offset_t *fileoff, struct ksendfilevec64 *sfv, 917c478bd9Sstevel@tonic-gate int copy_cnt, ssize32_t *count) 927c478bd9Sstevel@tonic-gate { 937c478bd9Sstevel@tonic-gate struct vnode *vp; 947c478bd9Sstevel@tonic-gate ushort_t fflag; 957c478bd9Sstevel@tonic-gate int ioflag; 967c478bd9Sstevel@tonic-gate size32_t cnt; 977c478bd9Sstevel@tonic-gate ssize32_t sfv_len; 987c478bd9Sstevel@tonic-gate ssize32_t tmpcount; 997c478bd9Sstevel@tonic-gate u_offset_t sfv_off; 1007c478bd9Sstevel@tonic-gate struct uio auio; 1017c478bd9Sstevel@tonic-gate struct iovec aiov; 1027c478bd9Sstevel@tonic-gate int i, error; 1037c478bd9Sstevel@tonic-gate 1047c478bd9Sstevel@tonic-gate fflag = fp->f_flag; 1057c478bd9Sstevel@tonic-gate vp = fp->f_vnode; 1067c478bd9Sstevel@tonic-gate for (i = 0; i < copy_cnt; i++) { 1077c478bd9Sstevel@tonic-gate 1087c478bd9Sstevel@tonic-gate if (ISSIG(curthread, JUSTLOOKING)) 1097c478bd9Sstevel@tonic-gate return (EINTR); 1107c478bd9Sstevel@tonic-gate 1117c478bd9Sstevel@tonic-gate /* 1127c478bd9Sstevel@tonic-gate * Do similar checks as "write" as we are writing 1137c478bd9Sstevel@tonic-gate * sfv_len bytes into "vp". 1147c478bd9Sstevel@tonic-gate */ 1157c478bd9Sstevel@tonic-gate sfv_len = (ssize32_t)sfv->sfv_len; 1167c478bd9Sstevel@tonic-gate 117e116a42fSPrakash Jalan if (sfv_len == 0) { 118e116a42fSPrakash Jalan sfv++; 1197c478bd9Sstevel@tonic-gate continue; 120e116a42fSPrakash Jalan } 1217c478bd9Sstevel@tonic-gate 1227c478bd9Sstevel@tonic-gate if (sfv_len < 0) 1237c478bd9Sstevel@tonic-gate return (EINVAL); 1247c478bd9Sstevel@tonic-gate 1257c478bd9Sstevel@tonic-gate if (vp->v_type == VREG) { 1267c478bd9Sstevel@tonic-gate if (*fileoff >= curproc->p_fsz_ctl) { 1277c478bd9Sstevel@tonic-gate mutex_enter(&curproc->p_lock); 1287c478bd9Sstevel@tonic-gate (void) rctl_action( 1297c478bd9Sstevel@tonic-gate rctlproc_legacy[RLIMIT_FSIZE], 1307c478bd9Sstevel@tonic-gate curproc->p_rctls, curproc, RCA_SAFE); 1317c478bd9Sstevel@tonic-gate mutex_exit(&curproc->p_lock); 1327c478bd9Sstevel@tonic-gate return (EFBIG); 1337c478bd9Sstevel@tonic-gate } 1347c478bd9Sstevel@tonic-gate 1357c478bd9Sstevel@tonic-gate if (*fileoff >= OFFSET_MAX(fp)) 1367c478bd9Sstevel@tonic-gate return (EFBIG); 1377c478bd9Sstevel@tonic-gate 1387c478bd9Sstevel@tonic-gate if (*fileoff + sfv_len > OFFSET_MAX(fp)) 1397c478bd9Sstevel@tonic-gate return (EINVAL); 1407c478bd9Sstevel@tonic-gate } 1417c478bd9Sstevel@tonic-gate 1427c478bd9Sstevel@tonic-gate tmpcount = *count + sfv_len; 1437c478bd9Sstevel@tonic-gate if (tmpcount < 0) 1447c478bd9Sstevel@tonic-gate return (EINVAL); 1457c478bd9Sstevel@tonic-gate 1467c478bd9Sstevel@tonic-gate sfv_off = sfv->sfv_off; 1477c478bd9Sstevel@tonic-gate 1487c478bd9Sstevel@tonic-gate auio.uio_extflg = UIO_COPY_DEFAULT; 1497c478bd9Sstevel@tonic-gate if (sfv->sfv_fd == SFV_FD_SELF) { 1507c478bd9Sstevel@tonic-gate aiov.iov_len = sfv_len; 1517c478bd9Sstevel@tonic-gate aiov.iov_base = (caddr_t)(uintptr_t)sfv_off; 1527c478bd9Sstevel@tonic-gate auio.uio_loffset = *fileoff; 1537c478bd9Sstevel@tonic-gate auio.uio_iovcnt = 1; 1547c478bd9Sstevel@tonic-gate auio.uio_resid = sfv_len; 1557c478bd9Sstevel@tonic-gate auio.uio_iov = &aiov; 1567c478bd9Sstevel@tonic-gate auio.uio_segflg = UIO_USERSPACE; 1577c478bd9Sstevel@tonic-gate auio.uio_llimit = curproc->p_fsz_ctl; 1587c478bd9Sstevel@tonic-gate auio.uio_fmode = fflag; 1597c478bd9Sstevel@tonic-gate ioflag = auio.uio_fmode & (FAPPEND|FSYNC|FDSYNC|FRSYNC); 1607c478bd9Sstevel@tonic-gate while (sfv_len > 0) { 1617c478bd9Sstevel@tonic-gate error = VOP_WRITE(vp, &auio, ioflag, 1627c478bd9Sstevel@tonic-gate fp->f_cred, NULL); 1637c478bd9Sstevel@tonic-gate cnt = sfv_len - auio.uio_resid; 1647c478bd9Sstevel@tonic-gate sfv_len -= cnt; 1657c478bd9Sstevel@tonic-gate ttolwp(curthread)->lwp_ru.ioch += (ulong_t)cnt; 1667c478bd9Sstevel@tonic-gate if (vp->v_type == VREG) 1677c478bd9Sstevel@tonic-gate *fileoff += cnt; 1687c478bd9Sstevel@tonic-gate *count += cnt; 1697c478bd9Sstevel@tonic-gate if (error != 0) 1707c478bd9Sstevel@tonic-gate return (error); 1717c478bd9Sstevel@tonic-gate } 1727c478bd9Sstevel@tonic-gate } else { 1737c478bd9Sstevel@tonic-gate file_t *ffp; 1747c478bd9Sstevel@tonic-gate vnode_t *readvp; 1757c478bd9Sstevel@tonic-gate size_t size; 1767c478bd9Sstevel@tonic-gate caddr_t ptr; 1777c478bd9Sstevel@tonic-gate 1787c478bd9Sstevel@tonic-gate if ((ffp = getf(sfv->sfv_fd)) == NULL) 1797c478bd9Sstevel@tonic-gate return (EBADF); 1807c478bd9Sstevel@tonic-gate 1817c478bd9Sstevel@tonic-gate if ((ffp->f_flag & FREAD) == 0) { 1827c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 1837c478bd9Sstevel@tonic-gate return (EBADF); 1847c478bd9Sstevel@tonic-gate } 1857c478bd9Sstevel@tonic-gate 1867c478bd9Sstevel@tonic-gate readvp = ffp->f_vnode; 1877c478bd9Sstevel@tonic-gate if (readvp->v_type != VREG) { 1887c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 1897c478bd9Sstevel@tonic-gate return (EINVAL); 1907c478bd9Sstevel@tonic-gate } 1917c478bd9Sstevel@tonic-gate 1927c478bd9Sstevel@tonic-gate /* 1937c478bd9Sstevel@tonic-gate * No point reading and writing to same vp, 1947c478bd9Sstevel@tonic-gate * as long as both are regular files. readvp is not 1957c478bd9Sstevel@tonic-gate * locked; but since we got it from an open file the 1967c478bd9Sstevel@tonic-gate * contents will be valid during the time of access. 1977c478bd9Sstevel@tonic-gate */ 198bfb244baSpr if (vn_compare(vp, readvp)) { 1997c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 2007c478bd9Sstevel@tonic-gate return (EINVAL); 2017c478bd9Sstevel@tonic-gate } 2027c478bd9Sstevel@tonic-gate 2037c478bd9Sstevel@tonic-gate /* 2047c478bd9Sstevel@tonic-gate * Note: we assume readvp != vp. "vp" is already 2057c478bd9Sstevel@tonic-gate * locked, and "readvp" must not be. 2067c478bd9Sstevel@tonic-gate */ 2077c478bd9Sstevel@tonic-gate (void) VOP_RWLOCK(readvp, readflg, NULL); 2087c478bd9Sstevel@tonic-gate 2097c478bd9Sstevel@tonic-gate /* 2107c478bd9Sstevel@tonic-gate * Same checks as in pread64. 2117c478bd9Sstevel@tonic-gate */ 2127c478bd9Sstevel@tonic-gate if (sfv_off > MAXOFFSET_T) { 2137c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 2147c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 2157c478bd9Sstevel@tonic-gate return (EINVAL); 2167c478bd9Sstevel@tonic-gate } 2177c478bd9Sstevel@tonic-gate 2187c478bd9Sstevel@tonic-gate if (sfv_off + sfv_len > MAXOFFSET_T) 2197c478bd9Sstevel@tonic-gate sfv_len = (ssize32_t)(MAXOFFSET_T - sfv_off); 2207c478bd9Sstevel@tonic-gate 2217c478bd9Sstevel@tonic-gate /* Find the native blocksize to transfer data */ 2227c478bd9Sstevel@tonic-gate size = MIN(vp->v_vfsp->vfs_bsize, 2237c478bd9Sstevel@tonic-gate readvp->v_vfsp->vfs_bsize); 2247c478bd9Sstevel@tonic-gate size = sfv_len < size ? sfv_len : size; 2257c478bd9Sstevel@tonic-gate ptr = kmem_alloc(size, KM_SLEEP); 2267c478bd9Sstevel@tonic-gate 2277c478bd9Sstevel@tonic-gate while (sfv_len > 0) { 2287c478bd9Sstevel@tonic-gate size_t iov_len; 2297c478bd9Sstevel@tonic-gate 2307c478bd9Sstevel@tonic-gate iov_len = MIN(size, sfv_len); 2317c478bd9Sstevel@tonic-gate aiov.iov_base = ptr; 2327c478bd9Sstevel@tonic-gate aiov.iov_len = iov_len; 2337c478bd9Sstevel@tonic-gate auio.uio_loffset = sfv_off; 2347c478bd9Sstevel@tonic-gate auio.uio_iov = &aiov; 2357c478bd9Sstevel@tonic-gate auio.uio_iovcnt = 1; 2367c478bd9Sstevel@tonic-gate auio.uio_resid = iov_len; 2377c478bd9Sstevel@tonic-gate auio.uio_segflg = UIO_SYSSPACE; 2387c478bd9Sstevel@tonic-gate auio.uio_llimit = MAXOFFSET_T; 2397c478bd9Sstevel@tonic-gate auio.uio_fmode = ffp->f_flag; 2407c478bd9Sstevel@tonic-gate ioflag = auio.uio_fmode & 2417c478bd9Sstevel@tonic-gate (FAPPEND|FSYNC|FDSYNC|FRSYNC); 2427c478bd9Sstevel@tonic-gate 2437c478bd9Sstevel@tonic-gate /* 2447c478bd9Sstevel@tonic-gate * If read sync is not asked for, 2457c478bd9Sstevel@tonic-gate * filter sync flags 2467c478bd9Sstevel@tonic-gate */ 2477c478bd9Sstevel@tonic-gate if ((ioflag & FRSYNC) == 0) 2487c478bd9Sstevel@tonic-gate ioflag &= ~(FSYNC|FDSYNC); 2497c478bd9Sstevel@tonic-gate error = VOP_READ(readvp, &auio, ioflag, 2507c478bd9Sstevel@tonic-gate fp->f_cred, NULL); 2517c478bd9Sstevel@tonic-gate if (error) { 2527c478bd9Sstevel@tonic-gate kmem_free(ptr, size); 2537c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 2547c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 2557c478bd9Sstevel@tonic-gate return (error); 2567c478bd9Sstevel@tonic-gate } 2577c478bd9Sstevel@tonic-gate 2587c478bd9Sstevel@tonic-gate /* 2597c478bd9Sstevel@tonic-gate * Check how must data was really read. 2607c478bd9Sstevel@tonic-gate * Decrement the 'len' and increment the 2617c478bd9Sstevel@tonic-gate * 'off' appropriately. 2627c478bd9Sstevel@tonic-gate */ 2637c478bd9Sstevel@tonic-gate cnt = iov_len - auio.uio_resid; 2647c478bd9Sstevel@tonic-gate if (cnt == 0) { 2657c478bd9Sstevel@tonic-gate /* 2667c478bd9Sstevel@tonic-gate * If we were reading a pipe (currently 2677c478bd9Sstevel@tonic-gate * not implemented), we may now lose 2687c478bd9Sstevel@tonic-gate * data. 2697c478bd9Sstevel@tonic-gate */ 2707c478bd9Sstevel@tonic-gate kmem_free(ptr, size); 2717c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 2727c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 2737c478bd9Sstevel@tonic-gate return (EINVAL); 2747c478bd9Sstevel@tonic-gate } 2757c478bd9Sstevel@tonic-gate sfv_len -= cnt; 2767c478bd9Sstevel@tonic-gate sfv_off += cnt; 2777c478bd9Sstevel@tonic-gate 2787c478bd9Sstevel@tonic-gate aiov.iov_base = ptr; 2797c478bd9Sstevel@tonic-gate aiov.iov_len = cnt; 2807c478bd9Sstevel@tonic-gate auio.uio_loffset = *fileoff; 281a490cd42SPrakash Jalan auio.uio_iov = &aiov; 282a490cd42SPrakash Jalan auio.uio_iovcnt = 1; 2837c478bd9Sstevel@tonic-gate auio.uio_resid = cnt; 2847c478bd9Sstevel@tonic-gate auio.uio_segflg = UIO_SYSSPACE; 2857c478bd9Sstevel@tonic-gate auio.uio_llimit = curproc->p_fsz_ctl; 2867c478bd9Sstevel@tonic-gate auio.uio_fmode = fflag; 2877c478bd9Sstevel@tonic-gate ioflag = auio.uio_fmode & 2887c478bd9Sstevel@tonic-gate (FAPPEND|FSYNC|FDSYNC|FRSYNC); 2897c478bd9Sstevel@tonic-gate error = VOP_WRITE(vp, &auio, ioflag, 2907c478bd9Sstevel@tonic-gate fp->f_cred, NULL); 2917c478bd9Sstevel@tonic-gate 2927c478bd9Sstevel@tonic-gate /* 2937c478bd9Sstevel@tonic-gate * Check how much data was written. Increment 2947c478bd9Sstevel@tonic-gate * the 'len' and decrement the 'off' if all 2957c478bd9Sstevel@tonic-gate * the data was not written. 2967c478bd9Sstevel@tonic-gate */ 2977c478bd9Sstevel@tonic-gate cnt -= auio.uio_resid; 2987c478bd9Sstevel@tonic-gate sfv_len += auio.uio_resid; 2997c478bd9Sstevel@tonic-gate sfv_off -= auio.uio_resid; 3007c478bd9Sstevel@tonic-gate ttolwp(curthread)->lwp_ru.ioch += (ulong_t)cnt; 3017c478bd9Sstevel@tonic-gate if (vp->v_type == VREG) 3027c478bd9Sstevel@tonic-gate *fileoff += cnt; 3037c478bd9Sstevel@tonic-gate *count += cnt; 3047c478bd9Sstevel@tonic-gate if (error != 0) { 3057c478bd9Sstevel@tonic-gate kmem_free(ptr, size); 3067c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 3077c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 3087c478bd9Sstevel@tonic-gate return (error); 3097c478bd9Sstevel@tonic-gate } 3107c478bd9Sstevel@tonic-gate } 3117c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 3127c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 3137c478bd9Sstevel@tonic-gate kmem_free(ptr, size); 3147c478bd9Sstevel@tonic-gate } 3157c478bd9Sstevel@tonic-gate sfv++; 3167c478bd9Sstevel@tonic-gate } 3177c478bd9Sstevel@tonic-gate return (0); 3187c478bd9Sstevel@tonic-gate } 3197c478bd9Sstevel@tonic-gate 3207c478bd9Sstevel@tonic-gate ssize32_t 3217c478bd9Sstevel@tonic-gate sendvec64(file_t *fp, const struct ksendfilevec64 *vec, int sfvcnt, 3227c478bd9Sstevel@tonic-gate size32_t *xferred, int fildes) 3237c478bd9Sstevel@tonic-gate { 3247c478bd9Sstevel@tonic-gate u_offset_t fileoff; 3257c478bd9Sstevel@tonic-gate int copy_cnt; 3267c478bd9Sstevel@tonic-gate const struct ksendfilevec64 *copy_vec; 3277c478bd9Sstevel@tonic-gate struct ksendfilevec64 sfv[SEND_MAX_CHUNK]; 3287c478bd9Sstevel@tonic-gate struct vnode *vp; 3297c478bd9Sstevel@tonic-gate int error; 3307c478bd9Sstevel@tonic-gate ssize32_t count = 0; 3317c478bd9Sstevel@tonic-gate 3327c478bd9Sstevel@tonic-gate vp = fp->f_vnode; 3337c478bd9Sstevel@tonic-gate (void) VOP_RWLOCK(vp, rwflag, NULL); 3347c478bd9Sstevel@tonic-gate 3357c478bd9Sstevel@tonic-gate copy_vec = vec; 3367c478bd9Sstevel@tonic-gate fileoff = fp->f_offset; 3377c478bd9Sstevel@tonic-gate 3387c478bd9Sstevel@tonic-gate do { 3397c478bd9Sstevel@tonic-gate copy_cnt = MIN(sfvcnt, SEND_MAX_CHUNK); 3407c478bd9Sstevel@tonic-gate if (copyin(copy_vec, sfv, copy_cnt * 3417c478bd9Sstevel@tonic-gate sizeof (struct ksendfilevec64))) { 3427c478bd9Sstevel@tonic-gate error = EFAULT; 3437c478bd9Sstevel@tonic-gate break; 3447c478bd9Sstevel@tonic-gate } 3457c478bd9Sstevel@tonic-gate 3467c478bd9Sstevel@tonic-gate /* 34774024373Spr * Optimize the regular file over 3487c478bd9Sstevel@tonic-gate * the socket case. 3497c478bd9Sstevel@tonic-gate */ 35074024373Spr if (vp->v_type == VSOCK && sfv->sfv_fd != SFV_FD_SELF) { 3517c478bd9Sstevel@tonic-gate file_t *rfp; 3527c478bd9Sstevel@tonic-gate vnode_t *rvp; 3537c478bd9Sstevel@tonic-gate 3547c478bd9Sstevel@tonic-gate if ((rfp = getf(sfv->sfv_fd)) == NULL) { 3557c478bd9Sstevel@tonic-gate error = EBADF; 3567c478bd9Sstevel@tonic-gate break; 3577c478bd9Sstevel@tonic-gate } 3587c478bd9Sstevel@tonic-gate if ((rfp->f_flag & FREAD) == 0) { 3597c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 3607c478bd9Sstevel@tonic-gate error = EBADF; 3617c478bd9Sstevel@tonic-gate break; 3627c478bd9Sstevel@tonic-gate } 3637c478bd9Sstevel@tonic-gate rvp = rfp->f_vnode; 3647c478bd9Sstevel@tonic-gate if (rvp->v_type == VREG) { 3657c478bd9Sstevel@tonic-gate error = sosendfile64(fp, rfp, sfv, &count); 36674024373Spr if (error) 36774024373Spr break; 36874024373Spr copy_vec++; 36974024373Spr sfvcnt--; 37074024373Spr continue; 3717c478bd9Sstevel@tonic-gate } 3727c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 3737c478bd9Sstevel@tonic-gate } 3747c478bd9Sstevel@tonic-gate error = sendvec_chunk64(fp, &fileoff, sfv, copy_cnt, &count); 3757c478bd9Sstevel@tonic-gate if (error != 0) 3767c478bd9Sstevel@tonic-gate break; 3777c478bd9Sstevel@tonic-gate 3787c478bd9Sstevel@tonic-gate copy_vec += copy_cnt; 3797c478bd9Sstevel@tonic-gate sfvcnt -= copy_cnt; 3807c478bd9Sstevel@tonic-gate } while (sfvcnt > 0); 3817c478bd9Sstevel@tonic-gate 3827c478bd9Sstevel@tonic-gate if (vp->v_type == VREG) 3837c478bd9Sstevel@tonic-gate fp->f_offset += count; 3847c478bd9Sstevel@tonic-gate 3857c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(vp, rwflag, NULL); 3867c478bd9Sstevel@tonic-gate if (copyout(&count, xferred, sizeof (count))) 3877c478bd9Sstevel@tonic-gate error = EFAULT; 3887c478bd9Sstevel@tonic-gate releasef(fildes); 3897c478bd9Sstevel@tonic-gate if (error != 0) 3907c478bd9Sstevel@tonic-gate return (set_errno(error)); 3917c478bd9Sstevel@tonic-gate return (count); 3927c478bd9Sstevel@tonic-gate } 3937c478bd9Sstevel@tonic-gate #endif 3947c478bd9Sstevel@tonic-gate 3957c478bd9Sstevel@tonic-gate int 3967c478bd9Sstevel@tonic-gate sendvec_small_chunk(file_t *fp, u_offset_t *fileoff, struct sendfilevec *sfv, 3977c478bd9Sstevel@tonic-gate int copy_cnt, ssize_t total_size, int maxblk, ssize_t *count) 3987c478bd9Sstevel@tonic-gate { 3997c478bd9Sstevel@tonic-gate struct vnode *vp; 4007c478bd9Sstevel@tonic-gate struct uio auio; 4017c478bd9Sstevel@tonic-gate struct iovec aiov; 4027c478bd9Sstevel@tonic-gate ushort_t fflag; 4037c478bd9Sstevel@tonic-gate int ioflag; 4047c478bd9Sstevel@tonic-gate int i, error; 4057c478bd9Sstevel@tonic-gate size_t cnt; 4067c478bd9Sstevel@tonic-gate ssize_t sfv_len; 4077c478bd9Sstevel@tonic-gate u_offset_t sfv_off; 4087c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 4097c478bd9Sstevel@tonic-gate model_t model = get_udatamodel(); 4107c478bd9Sstevel@tonic-gate u_offset_t maxoff = (model == DATAMODEL_ILP32) ? 411311e3d4cSgeorges MAXOFF32_T : MAXOFFSET_T; 4127c478bd9Sstevel@tonic-gate #else 4137c478bd9Sstevel@tonic-gate const u_offset_t maxoff = MAXOFF32_T; 4147c478bd9Sstevel@tonic-gate #endif 4157c478bd9Sstevel@tonic-gate mblk_t *dmp = NULL; 4167c478bd9Sstevel@tonic-gate int wroff; 4177c478bd9Sstevel@tonic-gate int buf_left = 0; 4187c478bd9Sstevel@tonic-gate size_t iov_len; 4197c478bd9Sstevel@tonic-gate mblk_t *head, *tmp; 4207c478bd9Sstevel@tonic-gate size_t size = total_size; 421c28749e9Skais size_t extra; 422c28749e9Skais int tail_len; 423*0f1702c5SYu Xiangning struct nmsghdr msg; 4247c478bd9Sstevel@tonic-gate 4257c478bd9Sstevel@tonic-gate fflag = fp->f_flag; 4267c478bd9Sstevel@tonic-gate vp = fp->f_vnode; 4277c478bd9Sstevel@tonic-gate 4287c478bd9Sstevel@tonic-gate ASSERT(vp->v_type == VSOCK); 4297c478bd9Sstevel@tonic-gate ASSERT(maxblk > 0); 4307c478bd9Sstevel@tonic-gate 431e116a42fSPrakash Jalan /* If nothing to send, return */ 432e116a42fSPrakash Jalan if (total_size == 0) 433e116a42fSPrakash Jalan return (0); 434e116a42fSPrakash Jalan 435*0f1702c5SYu Xiangning if (vp->v_stream != NULL) { 436*0f1702c5SYu Xiangning wroff = (int)vp->v_stream->sd_wroff; 437*0f1702c5SYu Xiangning tail_len = (int)vp->v_stream->sd_tail; 438*0f1702c5SYu Xiangning } else { 439*0f1702c5SYu Xiangning struct sonode *so; 440*0f1702c5SYu Xiangning 441*0f1702c5SYu Xiangning so = VTOSO(vp); 442*0f1702c5SYu Xiangning wroff = so->so_proto_props.sopp_wroff; 443*0f1702c5SYu Xiangning tail_len = so->so_proto_props.sopp_tail; 444*0f1702c5SYu Xiangning } 445*0f1702c5SYu Xiangning 446c28749e9Skais extra = wroff + tail_len; 447c28749e9Skais 4487c478bd9Sstevel@tonic-gate buf_left = MIN(total_size, maxblk); 449c28749e9Skais head = dmp = allocb(buf_left + extra, BPRI_HI); 4507c478bd9Sstevel@tonic-gate if (head == NULL) 4517c478bd9Sstevel@tonic-gate return (ENOMEM); 4527c478bd9Sstevel@tonic-gate head->b_wptr = head->b_rptr = head->b_rptr + wroff; 453*0f1702c5SYu Xiangning bzero(&msg, sizeof (msg)); 4547c478bd9Sstevel@tonic-gate 4557c478bd9Sstevel@tonic-gate auio.uio_extflg = UIO_COPY_DEFAULT; 4567c478bd9Sstevel@tonic-gate for (i = 0; i < copy_cnt; i++) { 457311e3d4cSgeorges if (ISSIG(curthread, JUSTLOOKING)) { 458311e3d4cSgeorges freemsg(head); 4597c478bd9Sstevel@tonic-gate return (EINTR); 460311e3d4cSgeorges } 4617c478bd9Sstevel@tonic-gate 4627c478bd9Sstevel@tonic-gate /* 4637c478bd9Sstevel@tonic-gate * Do similar checks as "write" as we are writing 4647c478bd9Sstevel@tonic-gate * sfv_len bytes into "vp". 4657c478bd9Sstevel@tonic-gate */ 4667c478bd9Sstevel@tonic-gate sfv_len = (ssize_t)sfv->sfv_len; 4677c478bd9Sstevel@tonic-gate 4687c478bd9Sstevel@tonic-gate if (sfv_len == 0) { 4697c478bd9Sstevel@tonic-gate sfv++; 4707c478bd9Sstevel@tonic-gate continue; 4717c478bd9Sstevel@tonic-gate } 4727c478bd9Sstevel@tonic-gate 4737c478bd9Sstevel@tonic-gate /* Check for overflow */ 4747c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 4757c478bd9Sstevel@tonic-gate if (model == DATAMODEL_ILP32) { 476311e3d4cSgeorges if (((ssize32_t)(*count + sfv_len)) < 0) { 477311e3d4cSgeorges freemsg(head); 4787c478bd9Sstevel@tonic-gate return (EINVAL); 479311e3d4cSgeorges } 4807c478bd9Sstevel@tonic-gate } else 4817c478bd9Sstevel@tonic-gate #endif 482311e3d4cSgeorges if ((*count + sfv_len) < 0) { 483311e3d4cSgeorges freemsg(head); 4847c478bd9Sstevel@tonic-gate return (EINVAL); 485311e3d4cSgeorges } 4867c478bd9Sstevel@tonic-gate 4877c478bd9Sstevel@tonic-gate sfv_off = (u_offset_t)(ulong_t)sfv->sfv_off; 4887c478bd9Sstevel@tonic-gate 4897c478bd9Sstevel@tonic-gate if (sfv->sfv_fd == SFV_FD_SELF) { 4907c478bd9Sstevel@tonic-gate while (sfv_len > 0) { 4917c478bd9Sstevel@tonic-gate if (buf_left == 0) { 4927c478bd9Sstevel@tonic-gate tmp = dmp; 4937c478bd9Sstevel@tonic-gate buf_left = MIN(total_size, maxblk); 4947c478bd9Sstevel@tonic-gate iov_len = MIN(buf_left, sfv_len); 495c28749e9Skais dmp = allocb(buf_left + extra, BPRI_HI); 4967c478bd9Sstevel@tonic-gate if (dmp == NULL) { 4977c478bd9Sstevel@tonic-gate freemsg(head); 4987c478bd9Sstevel@tonic-gate return (ENOMEM); 4997c478bd9Sstevel@tonic-gate } 5007c478bd9Sstevel@tonic-gate dmp->b_wptr = dmp->b_rptr = 5017c478bd9Sstevel@tonic-gate dmp->b_rptr + wroff; 5027c478bd9Sstevel@tonic-gate tmp->b_cont = dmp; 5037c478bd9Sstevel@tonic-gate } else { 5047c478bd9Sstevel@tonic-gate iov_len = MIN(buf_left, sfv_len); 5057c478bd9Sstevel@tonic-gate } 5067c478bd9Sstevel@tonic-gate 5077c478bd9Sstevel@tonic-gate aiov.iov_len = iov_len; 5087c478bd9Sstevel@tonic-gate aiov.iov_base = (caddr_t)(uintptr_t)sfv_off; 5097c478bd9Sstevel@tonic-gate auio.uio_loffset = *fileoff; 5107c478bd9Sstevel@tonic-gate auio.uio_iovcnt = 1; 5117c478bd9Sstevel@tonic-gate auio.uio_resid = iov_len; 5127c478bd9Sstevel@tonic-gate auio.uio_iov = &aiov; 5137c478bd9Sstevel@tonic-gate auio.uio_segflg = UIO_USERSPACE; 5147c478bd9Sstevel@tonic-gate auio.uio_llimit = curproc->p_fsz_ctl; 5157c478bd9Sstevel@tonic-gate auio.uio_fmode = fflag; 5167c478bd9Sstevel@tonic-gate 5177c478bd9Sstevel@tonic-gate buf_left -= iov_len; 5187c478bd9Sstevel@tonic-gate total_size -= iov_len; 5197c478bd9Sstevel@tonic-gate sfv_len -= iov_len; 5207c478bd9Sstevel@tonic-gate sfv_off += iov_len; 5217c478bd9Sstevel@tonic-gate 5227c478bd9Sstevel@tonic-gate error = uiomove((caddr_t)dmp->b_wptr, 5237c478bd9Sstevel@tonic-gate iov_len, UIO_WRITE, &auio); 5247c478bd9Sstevel@tonic-gate if (error != 0) { 5257c478bd9Sstevel@tonic-gate freemsg(head); 5267c478bd9Sstevel@tonic-gate return (error); 5277c478bd9Sstevel@tonic-gate } 5287c478bd9Sstevel@tonic-gate dmp->b_wptr += iov_len; 5297c478bd9Sstevel@tonic-gate } 5307c478bd9Sstevel@tonic-gate } else { 5317c478bd9Sstevel@tonic-gate file_t *ffp; 5327c478bd9Sstevel@tonic-gate vnode_t *readvp; 5337c478bd9Sstevel@tonic-gate 5347c478bd9Sstevel@tonic-gate if ((ffp = getf(sfv->sfv_fd)) == NULL) { 5357c478bd9Sstevel@tonic-gate freemsg(head); 5367c478bd9Sstevel@tonic-gate return (EBADF); 5377c478bd9Sstevel@tonic-gate } 5387c478bd9Sstevel@tonic-gate 5397c478bd9Sstevel@tonic-gate if ((ffp->f_flag & FREAD) == 0) { 5407c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 5417c478bd9Sstevel@tonic-gate freemsg(head); 5427c478bd9Sstevel@tonic-gate return (EACCES); 5437c478bd9Sstevel@tonic-gate } 5447c478bd9Sstevel@tonic-gate 5457c478bd9Sstevel@tonic-gate readvp = ffp->f_vnode; 5467c478bd9Sstevel@tonic-gate if (readvp->v_type != VREG) { 5477c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 5487c478bd9Sstevel@tonic-gate freemsg(head); 5497c478bd9Sstevel@tonic-gate return (EINVAL); 5507c478bd9Sstevel@tonic-gate } 5517c478bd9Sstevel@tonic-gate 5527c478bd9Sstevel@tonic-gate /* 5537c478bd9Sstevel@tonic-gate * No point reading and writing to same vp, 5547c478bd9Sstevel@tonic-gate * as long as both are regular files. readvp is not 5557c478bd9Sstevel@tonic-gate * locked; but since we got it from an open file the 5567c478bd9Sstevel@tonic-gate * contents will be valid during the time of access. 5577c478bd9Sstevel@tonic-gate */ 5587c478bd9Sstevel@tonic-gate 559bfb244baSpr if (vn_compare(vp, readvp)) { 5607c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 5617c478bd9Sstevel@tonic-gate freemsg(head); 5627c478bd9Sstevel@tonic-gate return (EINVAL); 5637c478bd9Sstevel@tonic-gate } 5647c478bd9Sstevel@tonic-gate 5657c478bd9Sstevel@tonic-gate /* 5667c478bd9Sstevel@tonic-gate * Note: we assume readvp != vp. "vp" is already 5677c478bd9Sstevel@tonic-gate * locked, and "readvp" must not be. 5687c478bd9Sstevel@tonic-gate */ 5697c478bd9Sstevel@tonic-gate 5707c478bd9Sstevel@tonic-gate (void) VOP_RWLOCK(readvp, readflg, NULL); 5717c478bd9Sstevel@tonic-gate 5727c478bd9Sstevel@tonic-gate /* Same checks as in pread */ 5737c478bd9Sstevel@tonic-gate if (sfv_off > maxoff) { 5747c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 5757c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 5767c478bd9Sstevel@tonic-gate freemsg(head); 5777c478bd9Sstevel@tonic-gate return (EINVAL); 5787c478bd9Sstevel@tonic-gate } 5797c478bd9Sstevel@tonic-gate if (sfv_off + sfv_len > maxoff) { 5800a8433caSrshoaib total_size -= (sfv_off + sfv_len - maxoff); 5817c478bd9Sstevel@tonic-gate sfv_len = (ssize_t)((offset_t)maxoff - 5827c478bd9Sstevel@tonic-gate sfv_off); 5837c478bd9Sstevel@tonic-gate } 5847c478bd9Sstevel@tonic-gate 5857c478bd9Sstevel@tonic-gate while (sfv_len > 0) { 5867c478bd9Sstevel@tonic-gate if (buf_left == 0) { 5877c478bd9Sstevel@tonic-gate tmp = dmp; 5887c478bd9Sstevel@tonic-gate buf_left = MIN(total_size, maxblk); 5897c478bd9Sstevel@tonic-gate iov_len = MIN(buf_left, sfv_len); 590c28749e9Skais dmp = allocb(buf_left + extra, BPRI_HI); 5917c478bd9Sstevel@tonic-gate if (dmp == NULL) { 5927c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, 593311e3d4cSgeorges NULL); 5947c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 5957c478bd9Sstevel@tonic-gate freemsg(head); 5967c478bd9Sstevel@tonic-gate return (ENOMEM); 5977c478bd9Sstevel@tonic-gate } 5987c478bd9Sstevel@tonic-gate dmp->b_wptr = dmp->b_rptr = 5997c478bd9Sstevel@tonic-gate dmp->b_rptr + wroff; 6007c478bd9Sstevel@tonic-gate tmp->b_cont = dmp; 6017c478bd9Sstevel@tonic-gate } else { 6027c478bd9Sstevel@tonic-gate iov_len = MIN(buf_left, sfv_len); 6037c478bd9Sstevel@tonic-gate } 6047c478bd9Sstevel@tonic-gate aiov.iov_base = (caddr_t)dmp->b_wptr; 6057c478bd9Sstevel@tonic-gate aiov.iov_len = iov_len; 6067c478bd9Sstevel@tonic-gate auio.uio_loffset = sfv_off; 6077c478bd9Sstevel@tonic-gate auio.uio_iov = &aiov; 6087c478bd9Sstevel@tonic-gate auio.uio_iovcnt = 1; 6097c478bd9Sstevel@tonic-gate auio.uio_resid = iov_len; 6107c478bd9Sstevel@tonic-gate auio.uio_segflg = UIO_SYSSPACE; 6117c478bd9Sstevel@tonic-gate auio.uio_llimit = MAXOFFSET_T; 6127c478bd9Sstevel@tonic-gate auio.uio_fmode = ffp->f_flag; 6137c478bd9Sstevel@tonic-gate ioflag = auio.uio_fmode & 6147c478bd9Sstevel@tonic-gate (FAPPEND|FSYNC|FDSYNC|FRSYNC); 6157c478bd9Sstevel@tonic-gate 6167c478bd9Sstevel@tonic-gate /* 6177c478bd9Sstevel@tonic-gate * If read sync is not asked for, 6187c478bd9Sstevel@tonic-gate * filter sync flags 6197c478bd9Sstevel@tonic-gate */ 6207c478bd9Sstevel@tonic-gate if ((ioflag & FRSYNC) == 0) 6217c478bd9Sstevel@tonic-gate ioflag &= ~(FSYNC|FDSYNC); 6227c478bd9Sstevel@tonic-gate error = VOP_READ(readvp, &auio, ioflag, 6237c478bd9Sstevel@tonic-gate fp->f_cred, NULL); 6247c478bd9Sstevel@tonic-gate if (error != 0) { 6257c478bd9Sstevel@tonic-gate /* 6267c478bd9Sstevel@tonic-gate * If we were reading a pipe (currently 6277c478bd9Sstevel@tonic-gate * not implemented), we may now loose 6287c478bd9Sstevel@tonic-gate * data. 6297c478bd9Sstevel@tonic-gate */ 6307c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 6317c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 6327c478bd9Sstevel@tonic-gate freemsg(head); 6337c478bd9Sstevel@tonic-gate return (error); 6347c478bd9Sstevel@tonic-gate } 6357c478bd9Sstevel@tonic-gate 6367c478bd9Sstevel@tonic-gate /* 6377c478bd9Sstevel@tonic-gate * Check how much data was really read. 6387c478bd9Sstevel@tonic-gate * Decrement the 'len' and increment the 6397c478bd9Sstevel@tonic-gate * 'off' appropriately. 6407c478bd9Sstevel@tonic-gate */ 6417c478bd9Sstevel@tonic-gate cnt = iov_len - auio.uio_resid; 6427c478bd9Sstevel@tonic-gate if (cnt == 0) { 6437c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 6447c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 6457c478bd9Sstevel@tonic-gate freemsg(head); 6467c478bd9Sstevel@tonic-gate return (EINVAL); 6477c478bd9Sstevel@tonic-gate } 6487c478bd9Sstevel@tonic-gate sfv_len -= cnt; 6497c478bd9Sstevel@tonic-gate sfv_off += cnt; 6507c478bd9Sstevel@tonic-gate total_size -= cnt; 6517c478bd9Sstevel@tonic-gate buf_left -= cnt; 6527c478bd9Sstevel@tonic-gate 6537c478bd9Sstevel@tonic-gate dmp->b_wptr += cnt; 6547c478bd9Sstevel@tonic-gate } 6557c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 6567c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 6577c478bd9Sstevel@tonic-gate } 6587c478bd9Sstevel@tonic-gate sfv++; 6597c478bd9Sstevel@tonic-gate } 6607c478bd9Sstevel@tonic-gate 6617c478bd9Sstevel@tonic-gate ASSERT(total_size == 0); 662*0f1702c5SYu Xiangning error = socket_sendmblk(VTOSO(vp), &msg, fflag, CRED(), &head); 6637c478bd9Sstevel@tonic-gate if (error != 0) { 664*0f1702c5SYu Xiangning if (head != NULL) 665*0f1702c5SYu Xiangning freemsg(head); 6667c478bd9Sstevel@tonic-gate return (error); 6677c478bd9Sstevel@tonic-gate } 6687c478bd9Sstevel@tonic-gate ttolwp(curthread)->lwp_ru.ioch += (ulong_t)size; 6697c478bd9Sstevel@tonic-gate *count += size; 6707c478bd9Sstevel@tonic-gate 6717c478bd9Sstevel@tonic-gate return (0); 6727c478bd9Sstevel@tonic-gate } 6737c478bd9Sstevel@tonic-gate 6747c478bd9Sstevel@tonic-gate 6757c478bd9Sstevel@tonic-gate int 6767c478bd9Sstevel@tonic-gate sendvec_chunk(file_t *fp, u_offset_t *fileoff, struct sendfilevec *sfv, 6777c478bd9Sstevel@tonic-gate int copy_cnt, ssize_t *count) 6787c478bd9Sstevel@tonic-gate { 6797c478bd9Sstevel@tonic-gate struct vnode *vp; 6807c478bd9Sstevel@tonic-gate struct uio auio; 6817c478bd9Sstevel@tonic-gate struct iovec aiov; 6827c478bd9Sstevel@tonic-gate ushort_t fflag; 6837c478bd9Sstevel@tonic-gate int ioflag; 6847c478bd9Sstevel@tonic-gate int i, error; 6857c478bd9Sstevel@tonic-gate size_t cnt; 6867c478bd9Sstevel@tonic-gate ssize_t sfv_len; 6877c478bd9Sstevel@tonic-gate u_offset_t sfv_off; 6887c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 6897c478bd9Sstevel@tonic-gate model_t model = get_udatamodel(); 6907c478bd9Sstevel@tonic-gate u_offset_t maxoff = (model == DATAMODEL_ILP32) ? 691311e3d4cSgeorges MAXOFF32_T : MAXOFFSET_T; 6927c478bd9Sstevel@tonic-gate #else 6937c478bd9Sstevel@tonic-gate const u_offset_t maxoff = MAXOFF32_T; 6947c478bd9Sstevel@tonic-gate #endif 6951574ae68Sjohansen mblk_t *dmp = NULL; 6961574ae68Sjohansen char *buf = NULL; 697c28749e9Skais size_t extra; 698c28749e9Skais int maxblk, wroff, tail_len; 699c28749e9Skais struct sonode *so; 700c28749e9Skais stdata_t *stp; 701*0f1702c5SYu Xiangning struct nmsghdr msg; 7027c478bd9Sstevel@tonic-gate 7037c478bd9Sstevel@tonic-gate fflag = fp->f_flag; 7047c478bd9Sstevel@tonic-gate vp = fp->f_vnode; 7057c478bd9Sstevel@tonic-gate 706c28749e9Skais if (vp->v_type == VSOCK) { 707c28749e9Skais so = VTOSO(vp); 708*0f1702c5SYu Xiangning if (vp->v_stream != NULL) { 709*0f1702c5SYu Xiangning stp = vp->v_stream; 710*0f1702c5SYu Xiangning wroff = (int)stp->sd_wroff; 711*0f1702c5SYu Xiangning tail_len = (int)stp->sd_tail; 712*0f1702c5SYu Xiangning maxblk = (int)stp->sd_maxblk; 713*0f1702c5SYu Xiangning } else { 714*0f1702c5SYu Xiangning stp = NULL; 715*0f1702c5SYu Xiangning wroff = so->so_proto_props.sopp_wroff; 716*0f1702c5SYu Xiangning tail_len = so->so_proto_props.sopp_tail; 717*0f1702c5SYu Xiangning maxblk = so->so_proto_props.sopp_maxblk; 718*0f1702c5SYu Xiangning } 719c28749e9Skais extra = wroff + tail_len; 720c28749e9Skais } 721c28749e9Skais 722*0f1702c5SYu Xiangning bzero(&msg, sizeof (msg)); 7237c478bd9Sstevel@tonic-gate auio.uio_extflg = UIO_COPY_DEFAULT; 7247c478bd9Sstevel@tonic-gate for (i = 0; i < copy_cnt; i++) { 7257c478bd9Sstevel@tonic-gate if (ISSIG(curthread, JUSTLOOKING)) 7267c478bd9Sstevel@tonic-gate return (EINTR); 7277c478bd9Sstevel@tonic-gate 7287c478bd9Sstevel@tonic-gate /* 7297c478bd9Sstevel@tonic-gate * Do similar checks as "write" as we are writing 7307c478bd9Sstevel@tonic-gate * sfv_len bytes into "vp". 7317c478bd9Sstevel@tonic-gate */ 7327c478bd9Sstevel@tonic-gate sfv_len = (ssize_t)sfv->sfv_len; 7337c478bd9Sstevel@tonic-gate 7347c478bd9Sstevel@tonic-gate if (sfv_len == 0) { 7357c478bd9Sstevel@tonic-gate sfv++; 7367c478bd9Sstevel@tonic-gate continue; 7377c478bd9Sstevel@tonic-gate } 7387c478bd9Sstevel@tonic-gate 7397c478bd9Sstevel@tonic-gate if (vp->v_type == VREG) { 7407c478bd9Sstevel@tonic-gate if (*fileoff >= curproc->p_fsz_ctl) { 7417c478bd9Sstevel@tonic-gate mutex_enter(&curproc->p_lock); 7427c478bd9Sstevel@tonic-gate (void) rctl_action( 7437c478bd9Sstevel@tonic-gate rctlproc_legacy[RLIMIT_FSIZE], 7447c478bd9Sstevel@tonic-gate curproc->p_rctls, curproc, RCA_SAFE); 7457c478bd9Sstevel@tonic-gate mutex_exit(&curproc->p_lock); 7467c478bd9Sstevel@tonic-gate 7477c478bd9Sstevel@tonic-gate return (EFBIG); 7487c478bd9Sstevel@tonic-gate } 7497c478bd9Sstevel@tonic-gate 7507c478bd9Sstevel@tonic-gate if (*fileoff >= maxoff) 7517c478bd9Sstevel@tonic-gate return (EFBIG); 7527c478bd9Sstevel@tonic-gate 7537c478bd9Sstevel@tonic-gate if (*fileoff + sfv_len > maxoff) 7547c478bd9Sstevel@tonic-gate return (EINVAL); 7557c478bd9Sstevel@tonic-gate } 7567c478bd9Sstevel@tonic-gate 7577c478bd9Sstevel@tonic-gate /* Check for overflow */ 7587c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 7597c478bd9Sstevel@tonic-gate if (model == DATAMODEL_ILP32) { 7607c478bd9Sstevel@tonic-gate if (((ssize32_t)(*count + sfv_len)) < 0) 7617c478bd9Sstevel@tonic-gate return (EINVAL); 7627c478bd9Sstevel@tonic-gate } else 7637c478bd9Sstevel@tonic-gate #endif 7647c478bd9Sstevel@tonic-gate if ((*count + sfv_len) < 0) 7657c478bd9Sstevel@tonic-gate return (EINVAL); 7667c478bd9Sstevel@tonic-gate 7677c478bd9Sstevel@tonic-gate sfv_off = (u_offset_t)(ulong_t)sfv->sfv_off; 7687c478bd9Sstevel@tonic-gate 7697c478bd9Sstevel@tonic-gate if (sfv->sfv_fd == SFV_FD_SELF) { 7707c478bd9Sstevel@tonic-gate if (vp->v_type == VSOCK) { 771e116a42fSPrakash Jalan while (sfv_len > 0) { 772e116a42fSPrakash Jalan size_t iov_len; 773e116a42fSPrakash Jalan 774e116a42fSPrakash Jalan iov_len = sfv_len; 775*0f1702c5SYu Xiangning if (!SOCK_IS_NONSTR(so) && 776*0f1702c5SYu Xiangning SOTOTPI(so)->sti_kssl_ctx != NULL) 777e116a42fSPrakash Jalan iov_len = MIN(iov_len, maxblk); 778e116a42fSPrakash Jalan 779e116a42fSPrakash Jalan aiov.iov_len = iov_len; 780e116a42fSPrakash Jalan aiov.iov_base = 781e116a42fSPrakash Jalan (caddr_t)(uintptr_t)sfv_off; 782e116a42fSPrakash Jalan 783e116a42fSPrakash Jalan auio.uio_iov = &aiov; 784e116a42fSPrakash Jalan auio.uio_iovcnt = 1; 785e116a42fSPrakash Jalan auio.uio_loffset = *fileoff; 786e116a42fSPrakash Jalan auio.uio_segflg = UIO_USERSPACE; 787e116a42fSPrakash Jalan auio.uio_fmode = fflag; 788e116a42fSPrakash Jalan auio.uio_llimit = curproc->p_fsz_ctl; 789e116a42fSPrakash Jalan auio.uio_resid = iov_len; 790e116a42fSPrakash Jalan 791e116a42fSPrakash Jalan dmp = allocb(iov_len + extra, BPRI_HI); 792e116a42fSPrakash Jalan if (dmp == NULL) 793e116a42fSPrakash Jalan return (ENOMEM); 794e116a42fSPrakash Jalan dmp->b_wptr = dmp->b_rptr = 795e116a42fSPrakash Jalan dmp->b_rptr + wroff; 796e116a42fSPrakash Jalan error = uiomove((caddr_t)dmp->b_wptr, 797e116a42fSPrakash Jalan iov_len, UIO_WRITE, &auio); 798e116a42fSPrakash Jalan if (error != 0) { 799e116a42fSPrakash Jalan freeb(dmp); 800e116a42fSPrakash Jalan return (error); 801e116a42fSPrakash Jalan } 802e116a42fSPrakash Jalan dmp->b_wptr += iov_len; 803*0f1702c5SYu Xiangning error = socket_sendmblk(VTOSO(vp), 804*0f1702c5SYu Xiangning &msg, fflag, CRED(), &dmp); 805*0f1702c5SYu Xiangning 806e116a42fSPrakash Jalan if (error != 0) { 807*0f1702c5SYu Xiangning if (dmp != NULL) 808*0f1702c5SYu Xiangning freeb(dmp); 809e116a42fSPrakash Jalan return (error); 810e116a42fSPrakash Jalan } 811e116a42fSPrakash Jalan ttolwp(curthread)->lwp_ru.ioch += 812e116a42fSPrakash Jalan (ulong_t)iov_len; 813e116a42fSPrakash Jalan *count += iov_len; 814e116a42fSPrakash Jalan sfv_len -= iov_len; 815e116a42fSPrakash Jalan sfv_off += iov_len; 8167c478bd9Sstevel@tonic-gate } 8177c478bd9Sstevel@tonic-gate } else { 818*0f1702c5SYu Xiangning ttolwp(curthread)->lwp_ru.ioch += 819*0f1702c5SYu Xiangning (ulong_t)sfv_len; 820*0f1702c5SYu Xiangning *count += sfv_len; 821e116a42fSPrakash Jalan aiov.iov_len = sfv_len; 822e116a42fSPrakash Jalan aiov.iov_base = (caddr_t)(uintptr_t)sfv_off; 823e116a42fSPrakash Jalan 824e116a42fSPrakash Jalan auio.uio_iov = &aiov; 825e116a42fSPrakash Jalan auio.uio_iovcnt = 1; 826e116a42fSPrakash Jalan auio.uio_loffset = *fileoff; 827e116a42fSPrakash Jalan auio.uio_segflg = UIO_USERSPACE; 828e116a42fSPrakash Jalan auio.uio_fmode = fflag; 829e116a42fSPrakash Jalan auio.uio_llimit = curproc->p_fsz_ctl; 830e116a42fSPrakash Jalan auio.uio_resid = sfv_len; 831e116a42fSPrakash Jalan 8327c478bd9Sstevel@tonic-gate ioflag = auio.uio_fmode & 8337c478bd9Sstevel@tonic-gate (FAPPEND|FSYNC|FDSYNC|FRSYNC); 8347c478bd9Sstevel@tonic-gate while (sfv_len > 0) { 8357c478bd9Sstevel@tonic-gate error = VOP_WRITE(vp, &auio, ioflag, 8367c478bd9Sstevel@tonic-gate fp->f_cred, NULL); 8377c478bd9Sstevel@tonic-gate cnt = sfv_len - auio.uio_resid; 8387c478bd9Sstevel@tonic-gate sfv_len -= cnt; 8397c478bd9Sstevel@tonic-gate ttolwp(curthread)->lwp_ru.ioch += 8407c478bd9Sstevel@tonic-gate (ulong_t)cnt; 8417c478bd9Sstevel@tonic-gate *fileoff += cnt; 8427c478bd9Sstevel@tonic-gate *count += cnt; 8437c478bd9Sstevel@tonic-gate if (error != 0) 8447c478bd9Sstevel@tonic-gate return (error); 8457c478bd9Sstevel@tonic-gate } 8467c478bd9Sstevel@tonic-gate } 8477c478bd9Sstevel@tonic-gate } else { 8487f9ee850Sblu int segmapit = 0; 8497c478bd9Sstevel@tonic-gate file_t *ffp; 8507c478bd9Sstevel@tonic-gate vnode_t *readvp; 851bfb244baSpr struct vnode *realvp; 8527c478bd9Sstevel@tonic-gate size_t size; 8537c478bd9Sstevel@tonic-gate caddr_t ptr; 8547c478bd9Sstevel@tonic-gate 8557c478bd9Sstevel@tonic-gate if ((ffp = getf(sfv->sfv_fd)) == NULL) 8567c478bd9Sstevel@tonic-gate return (EBADF); 8577c478bd9Sstevel@tonic-gate 8587c478bd9Sstevel@tonic-gate if ((ffp->f_flag & FREAD) == 0) { 8597c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 8607c478bd9Sstevel@tonic-gate return (EBADF); 8617c478bd9Sstevel@tonic-gate } 8627c478bd9Sstevel@tonic-gate 8637c478bd9Sstevel@tonic-gate readvp = ffp->f_vnode; 864da6c28aaSamw if (VOP_REALVP(readvp, &realvp, NULL) == 0) 865bfb244baSpr readvp = realvp; 8667c478bd9Sstevel@tonic-gate if (readvp->v_type != VREG) { 8677c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 8687c478bd9Sstevel@tonic-gate return (EINVAL); 8697c478bd9Sstevel@tonic-gate } 8707c478bd9Sstevel@tonic-gate 8717c478bd9Sstevel@tonic-gate /* 8727c478bd9Sstevel@tonic-gate * No point reading and writing to same vp, 8737c478bd9Sstevel@tonic-gate * as long as both are regular files. readvp is not 8747c478bd9Sstevel@tonic-gate * locked; but since we got it from an open file the 8757c478bd9Sstevel@tonic-gate * contents will be valid during the time of access. 8767c478bd9Sstevel@tonic-gate */ 877bfb244baSpr if (vn_compare(vp, readvp)) { 8787c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 8797c478bd9Sstevel@tonic-gate return (EINVAL); 8807c478bd9Sstevel@tonic-gate } 8817c478bd9Sstevel@tonic-gate 8827c478bd9Sstevel@tonic-gate /* 8837c478bd9Sstevel@tonic-gate * Note: we assume readvp != vp. "vp" is already 8847c478bd9Sstevel@tonic-gate * locked, and "readvp" must not be. 8857c478bd9Sstevel@tonic-gate */ 8867c478bd9Sstevel@tonic-gate (void) VOP_RWLOCK(readvp, readflg, NULL); 8877c478bd9Sstevel@tonic-gate 8887c478bd9Sstevel@tonic-gate /* Same checks as in pread */ 8897c478bd9Sstevel@tonic-gate if (sfv_off > maxoff) { 8907c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 8917c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 8927c478bd9Sstevel@tonic-gate return (EINVAL); 8937c478bd9Sstevel@tonic-gate } 8947c478bd9Sstevel@tonic-gate if (sfv_off + sfv_len > maxoff) { 8957c478bd9Sstevel@tonic-gate sfv_len = (ssize_t)((offset_t)maxoff - 8967c478bd9Sstevel@tonic-gate sfv_off); 8977c478bd9Sstevel@tonic-gate } 8987c478bd9Sstevel@tonic-gate /* Find the native blocksize to transfer data */ 8997c478bd9Sstevel@tonic-gate size = MIN(vp->v_vfsp->vfs_bsize, 9007c478bd9Sstevel@tonic-gate readvp->v_vfsp->vfs_bsize); 9017c478bd9Sstevel@tonic-gate size = sfv_len < size ? sfv_len : size; 9027c478bd9Sstevel@tonic-gate 9031574ae68Sjohansen if (vp->v_type != VSOCK) { 90474024373Spr segmapit = 0; 9051574ae68Sjohansen buf = kmem_alloc(size, KM_NOSLEEP); 9061574ae68Sjohansen if (buf == NULL) { 9071574ae68Sjohansen VOP_RWUNLOCK(readvp, readflg, NULL); 9081574ae68Sjohansen releasef(sfv->sfv_fd); 9091574ae68Sjohansen return (ENOMEM); 9101574ae68Sjohansen } 911c28749e9Skais } else { 912*0f1702c5SYu Xiangning uint_t copyflag; 913*0f1702c5SYu Xiangning 914*0f1702c5SYu Xiangning copyflag = stp != NULL ? stp->sd_copyflag : 915*0f1702c5SYu Xiangning so->so_proto_props.sopp_zcopyflag; 916c28749e9Skais /* 917c28749e9Skais * For sockets acting as an SSL proxy, we 918c28749e9Skais * need to adjust the size to the maximum 919c28749e9Skais * SSL record size set in the stream head. 920c28749e9Skais */ 921*0f1702c5SYu Xiangning if (!SOCK_IS_NONSTR(so) && 922*0f1702c5SYu Xiangning _SOTOTPI(so)->sti_kssl_ctx != NULL) 923c28749e9Skais size = MIN(size, maxblk); 92474024373Spr 92574024373Spr if (vn_has_flocks(readvp) || 92674024373Spr readvp->v_flag & VNOMAP || 927*0f1702c5SYu Xiangning copyflag & STZCVMUNSAFE) { 92874024373Spr segmapit = 0; 929*0f1702c5SYu Xiangning } else if (copyflag & STZCVMSAFE) { 93074024373Spr segmapit = 1; 93174024373Spr } else { 93274024373Spr int on = 1; 933*0f1702c5SYu Xiangning if (socket_setsockopt(VTOSO(vp), 93474024373Spr SOL_SOCKET, SO_SND_COPYAVOID, 935*0f1702c5SYu Xiangning &on, sizeof (on), CRED()) == 0) 93674024373Spr segmapit = 1; 93774024373Spr } 93874024373Spr } 93974024373Spr 94074024373Spr if (segmapit) { 94174024373Spr boolean_t nowait; 94274024373Spr 94374024373Spr nowait = (sfv->sfv_flag & SFV_NOWAIT) != 0; 94474024373Spr error = snf_segmap(fp, readvp, sfv_off, 9453b3d24f3SJayakara Kini (u_offset_t)sfv_len, (ssize_t *)&cnt, 9463b3d24f3SJayakara Kini nowait); 94774024373Spr releasef(sfv->sfv_fd); 94874024373Spr *count += cnt; 94974024373Spr if (error) 95074024373Spr return (error); 95174024373Spr sfv++; 95274024373Spr continue; 9531574ae68Sjohansen } 9541574ae68Sjohansen 9557c478bd9Sstevel@tonic-gate while (sfv_len > 0) { 9567c478bd9Sstevel@tonic-gate size_t iov_len; 9577c478bd9Sstevel@tonic-gate 9587c478bd9Sstevel@tonic-gate iov_len = MIN(size, sfv_len); 9597c478bd9Sstevel@tonic-gate 9601574ae68Sjohansen if (vp->v_type == VSOCK) { 961c28749e9Skais dmp = allocb(iov_len + extra, BPRI_HI); 9621574ae68Sjohansen if (dmp == NULL) { 9631574ae68Sjohansen VOP_RWUNLOCK(readvp, readflg, 9641574ae68Sjohansen NULL); 9651574ae68Sjohansen releasef(sfv->sfv_fd); 9661574ae68Sjohansen return (ENOMEM); 9671574ae68Sjohansen } 968c28749e9Skais dmp->b_wptr = dmp->b_rptr = 969c28749e9Skais dmp->b_rptr + wroff; 9701574ae68Sjohansen ptr = (caddr_t)dmp->b_rptr; 9711574ae68Sjohansen } else { 9721574ae68Sjohansen ptr = buf; 9737c478bd9Sstevel@tonic-gate } 9747c478bd9Sstevel@tonic-gate 9757c478bd9Sstevel@tonic-gate aiov.iov_base = ptr; 9767c478bd9Sstevel@tonic-gate aiov.iov_len = iov_len; 9777c478bd9Sstevel@tonic-gate auio.uio_loffset = sfv_off; 9787c478bd9Sstevel@tonic-gate auio.uio_iov = &aiov; 9797c478bd9Sstevel@tonic-gate auio.uio_iovcnt = 1; 9807c478bd9Sstevel@tonic-gate auio.uio_resid = iov_len; 9817c478bd9Sstevel@tonic-gate auio.uio_segflg = UIO_SYSSPACE; 9827c478bd9Sstevel@tonic-gate auio.uio_llimit = MAXOFFSET_T; 9837c478bd9Sstevel@tonic-gate auio.uio_fmode = ffp->f_flag; 9847c478bd9Sstevel@tonic-gate ioflag = auio.uio_fmode & 9857c478bd9Sstevel@tonic-gate (FAPPEND|FSYNC|FDSYNC|FRSYNC); 9867c478bd9Sstevel@tonic-gate 9877c478bd9Sstevel@tonic-gate /* 9887c478bd9Sstevel@tonic-gate * If read sync is not asked for, 9897c478bd9Sstevel@tonic-gate * filter sync flags 9907c478bd9Sstevel@tonic-gate */ 9917c478bd9Sstevel@tonic-gate if ((ioflag & FRSYNC) == 0) 9927c478bd9Sstevel@tonic-gate ioflag &= ~(FSYNC|FDSYNC); 9937c478bd9Sstevel@tonic-gate error = VOP_READ(readvp, &auio, ioflag, 9947c478bd9Sstevel@tonic-gate fp->f_cred, NULL); 9957c478bd9Sstevel@tonic-gate if (error != 0) { 9967c478bd9Sstevel@tonic-gate /* 9977c478bd9Sstevel@tonic-gate * If we were reading a pipe (currently 9987c478bd9Sstevel@tonic-gate * not implemented), we may now lose 9997c478bd9Sstevel@tonic-gate * data. 10007c478bd9Sstevel@tonic-gate */ 10011574ae68Sjohansen if (vp->v_type == VSOCK) 10021574ae68Sjohansen freeb(dmp); 10031574ae68Sjohansen else 10041574ae68Sjohansen kmem_free(buf, size); 10057c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 10067c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 10077c478bd9Sstevel@tonic-gate return (error); 10087c478bd9Sstevel@tonic-gate } 10097c478bd9Sstevel@tonic-gate 10107c478bd9Sstevel@tonic-gate /* 10117c478bd9Sstevel@tonic-gate * Check how much data was really read. 10127c478bd9Sstevel@tonic-gate * Decrement the 'len' and increment the 10137c478bd9Sstevel@tonic-gate * 'off' appropriately. 10147c478bd9Sstevel@tonic-gate */ 10157c478bd9Sstevel@tonic-gate cnt = iov_len - auio.uio_resid; 10167c478bd9Sstevel@tonic-gate if (cnt == 0) { 10171574ae68Sjohansen if (vp->v_type == VSOCK) 10181574ae68Sjohansen freeb(dmp); 10191574ae68Sjohansen else 10201574ae68Sjohansen kmem_free(buf, size); 10217c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 10227c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 10237c478bd9Sstevel@tonic-gate return (EINVAL); 10247c478bd9Sstevel@tonic-gate } 10257c478bd9Sstevel@tonic-gate sfv_len -= cnt; 10267c478bd9Sstevel@tonic-gate sfv_off += cnt; 10277c478bd9Sstevel@tonic-gate 10287c478bd9Sstevel@tonic-gate if (vp->v_type == VSOCK) { 10297c478bd9Sstevel@tonic-gate dmp->b_wptr = dmp->b_rptr + cnt; 10307c478bd9Sstevel@tonic-gate 1031*0f1702c5SYu Xiangning error = socket_sendmblk(VTOSO(vp), 1032*0f1702c5SYu Xiangning &msg, fflag, CRED(), &dmp); 1033*0f1702c5SYu Xiangning 10347c478bd9Sstevel@tonic-gate if (error != 0) { 1035*0f1702c5SYu Xiangning if (dmp != NULL) 1036*0f1702c5SYu Xiangning freeb(dmp); 10377c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, 1038311e3d4cSgeorges NULL); 10397c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 10407c478bd9Sstevel@tonic-gate return (error); 10417c478bd9Sstevel@tonic-gate } 10427c478bd9Sstevel@tonic-gate 10437c478bd9Sstevel@tonic-gate ttolwp(curthread)->lwp_ru.ioch += 10447c478bd9Sstevel@tonic-gate (ulong_t)cnt; 10457c478bd9Sstevel@tonic-gate *count += cnt; 10467c478bd9Sstevel@tonic-gate } else { 10477c478bd9Sstevel@tonic-gate 10487c478bd9Sstevel@tonic-gate aiov.iov_base = ptr; 10497c478bd9Sstevel@tonic-gate aiov.iov_len = cnt; 10507c478bd9Sstevel@tonic-gate auio.uio_loffset = *fileoff; 10517c478bd9Sstevel@tonic-gate auio.uio_resid = cnt; 1052a490cd42SPrakash Jalan auio.uio_iov = &aiov; 1053a490cd42SPrakash Jalan auio.uio_iovcnt = 1; 10547c478bd9Sstevel@tonic-gate auio.uio_segflg = UIO_SYSSPACE; 10557c478bd9Sstevel@tonic-gate auio.uio_llimit = curproc->p_fsz_ctl; 10567c478bd9Sstevel@tonic-gate auio.uio_fmode = fflag; 10577c478bd9Sstevel@tonic-gate ioflag = auio.uio_fmode & 10587c478bd9Sstevel@tonic-gate (FAPPEND|FSYNC|FDSYNC|FRSYNC); 10597c478bd9Sstevel@tonic-gate error = VOP_WRITE(vp, &auio, ioflag, 10607c478bd9Sstevel@tonic-gate fp->f_cred, NULL); 10617c478bd9Sstevel@tonic-gate 10627c478bd9Sstevel@tonic-gate /* 10637c478bd9Sstevel@tonic-gate * Check how much data was written. 10647c478bd9Sstevel@tonic-gate * Increment the 'len' and decrement the 10657c478bd9Sstevel@tonic-gate * 'off' if all the data was not 10667c478bd9Sstevel@tonic-gate * written. 10677c478bd9Sstevel@tonic-gate */ 10687c478bd9Sstevel@tonic-gate cnt -= auio.uio_resid; 10697c478bd9Sstevel@tonic-gate sfv_len += auio.uio_resid; 10707c478bd9Sstevel@tonic-gate sfv_off -= auio.uio_resid; 10717c478bd9Sstevel@tonic-gate ttolwp(curthread)->lwp_ru.ioch += 10727c478bd9Sstevel@tonic-gate (ulong_t)cnt; 10737c478bd9Sstevel@tonic-gate *fileoff += cnt; 10747c478bd9Sstevel@tonic-gate *count += cnt; 10757c478bd9Sstevel@tonic-gate if (error != 0) { 10762db6c79fSstevel kmem_free(buf, size); 10777c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, 1078311e3d4cSgeorges NULL); 10797c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 10807c478bd9Sstevel@tonic-gate return (error); 10817c478bd9Sstevel@tonic-gate } 10827c478bd9Sstevel@tonic-gate } 10837c478bd9Sstevel@tonic-gate } 10841574ae68Sjohansen if (buf) { 10851574ae68Sjohansen kmem_free(buf, size); 10861574ae68Sjohansen buf = NULL; 10871574ae68Sjohansen } 10887c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(readvp, readflg, NULL); 10897c478bd9Sstevel@tonic-gate releasef(sfv->sfv_fd); 10907c478bd9Sstevel@tonic-gate } 10917c478bd9Sstevel@tonic-gate sfv++; 10927c478bd9Sstevel@tonic-gate } 10937c478bd9Sstevel@tonic-gate return (0); 10947c478bd9Sstevel@tonic-gate } 10957c478bd9Sstevel@tonic-gate 10967c478bd9Sstevel@tonic-gate ssize_t 10977c478bd9Sstevel@tonic-gate sendfilev(int opcode, int fildes, const struct sendfilevec *vec, int sfvcnt, 10987c478bd9Sstevel@tonic-gate size_t *xferred) 10997c478bd9Sstevel@tonic-gate { 1100311e3d4cSgeorges int error = 0; 1101311e3d4cSgeorges int first_vector_error = 0; 11027c478bd9Sstevel@tonic-gate file_t *fp; 11037c478bd9Sstevel@tonic-gate struct vnode *vp; 11047c478bd9Sstevel@tonic-gate struct sonode *so; 11057c478bd9Sstevel@tonic-gate u_offset_t fileoff; 11067c478bd9Sstevel@tonic-gate int copy_cnt; 11077c478bd9Sstevel@tonic-gate const struct sendfilevec *copy_vec; 11087c478bd9Sstevel@tonic-gate struct sendfilevec sfv[SEND_MAX_CHUNK]; 11097c478bd9Sstevel@tonic-gate ssize_t count = 0; 11107c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 11117c478bd9Sstevel@tonic-gate struct ksendfilevec32 sfv32[SEND_MAX_CHUNK]; 11127c478bd9Sstevel@tonic-gate #endif 11130a8433caSrshoaib ssize_t total_size; 11147c478bd9Sstevel@tonic-gate int i; 11157c478bd9Sstevel@tonic-gate boolean_t is_sock = B_FALSE; 11167c478bd9Sstevel@tonic-gate int maxblk = 0; 11177c478bd9Sstevel@tonic-gate 11187c478bd9Sstevel@tonic-gate if (sfvcnt <= 0) 11197c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 11207c478bd9Sstevel@tonic-gate 11217c478bd9Sstevel@tonic-gate if ((fp = getf(fildes)) == NULL) 11227c478bd9Sstevel@tonic-gate return (set_errno(EBADF)); 11237c478bd9Sstevel@tonic-gate 11247c478bd9Sstevel@tonic-gate if (((fp->f_flag) & FWRITE) == 0) { 11257c478bd9Sstevel@tonic-gate error = EBADF; 11267c478bd9Sstevel@tonic-gate goto err; 11277c478bd9Sstevel@tonic-gate } 11287c478bd9Sstevel@tonic-gate 11297c478bd9Sstevel@tonic-gate fileoff = fp->f_offset; 11307c478bd9Sstevel@tonic-gate vp = fp->f_vnode; 11317c478bd9Sstevel@tonic-gate 11327c478bd9Sstevel@tonic-gate switch (vp->v_type) { 11337c478bd9Sstevel@tonic-gate case VSOCK: 11347c478bd9Sstevel@tonic-gate so = VTOSO(vp); 11357c478bd9Sstevel@tonic-gate is_sock = B_TRUE; 1136*0f1702c5SYu Xiangning if (SOCK_IS_NONSTR(so)) { 1137*0f1702c5SYu Xiangning maxblk = so->so_proto_props.sopp_maxblk; 1138*0f1702c5SYu Xiangning } else { 1139*0f1702c5SYu Xiangning maxblk = (int)vp->v_stream->sd_maxblk; 11407c478bd9Sstevel@tonic-gate } 11417c478bd9Sstevel@tonic-gate break; 11427c478bd9Sstevel@tonic-gate case VREG: 11437c478bd9Sstevel@tonic-gate break; 11447c478bd9Sstevel@tonic-gate default: 11457c478bd9Sstevel@tonic-gate error = EINVAL; 11467c478bd9Sstevel@tonic-gate goto err; 11477c478bd9Sstevel@tonic-gate } 11487c478bd9Sstevel@tonic-gate 11497c478bd9Sstevel@tonic-gate switch (opcode) { 11507c478bd9Sstevel@tonic-gate case SENDFILEV : 11517c478bd9Sstevel@tonic-gate break; 11527c478bd9Sstevel@tonic-gate #if defined(_SYSCALL32_IMPL) || defined(_ILP32) 11537c478bd9Sstevel@tonic-gate case SENDFILEV64 : 11547c478bd9Sstevel@tonic-gate return (sendvec64(fp, (struct ksendfilevec64 *)vec, sfvcnt, 11557c478bd9Sstevel@tonic-gate (size32_t *)xferred, fildes)); 11567c478bd9Sstevel@tonic-gate #endif 11577c478bd9Sstevel@tonic-gate default : 11587c478bd9Sstevel@tonic-gate error = ENOSYS; 11597c478bd9Sstevel@tonic-gate break; 11607c478bd9Sstevel@tonic-gate } 11617c478bd9Sstevel@tonic-gate 11627c478bd9Sstevel@tonic-gate (void) VOP_RWLOCK(vp, V_WRITELOCK_TRUE, NULL); 11637c478bd9Sstevel@tonic-gate copy_vec = vec; 11647c478bd9Sstevel@tonic-gate 11657c478bd9Sstevel@tonic-gate do { 11660a8433caSrshoaib total_size = 0; 11677c478bd9Sstevel@tonic-gate copy_cnt = MIN(sfvcnt, SEND_MAX_CHUNK); 11687c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 11697c478bd9Sstevel@tonic-gate /* 32-bit callers need to have their iovec expanded. */ 11707c478bd9Sstevel@tonic-gate if (get_udatamodel() == DATAMODEL_ILP32) { 11717c478bd9Sstevel@tonic-gate if (copyin(copy_vec, sfv32, 11727c478bd9Sstevel@tonic-gate copy_cnt * sizeof (ksendfilevec32_t))) { 11737c478bd9Sstevel@tonic-gate error = EFAULT; 11747c478bd9Sstevel@tonic-gate break; 11757c478bd9Sstevel@tonic-gate } 11767c478bd9Sstevel@tonic-gate 11777c478bd9Sstevel@tonic-gate for (i = 0; i < copy_cnt; i++) { 11787c478bd9Sstevel@tonic-gate sfv[i].sfv_fd = sfv32[i].sfv_fd; 11797c478bd9Sstevel@tonic-gate sfv[i].sfv_off = 1180311e3d4cSgeorges (off_t)(uint32_t)sfv32[i].sfv_off; 11817c478bd9Sstevel@tonic-gate sfv[i].sfv_len = (size_t)sfv32[i].sfv_len; 11827c478bd9Sstevel@tonic-gate total_size += sfv[i].sfv_len; 11837c478bd9Sstevel@tonic-gate sfv[i].sfv_flag = sfv32[i].sfv_flag; 1184311e3d4cSgeorges /* 1185311e3d4cSgeorges * Individual elements of the vector must not 1186311e3d4cSgeorges * wrap or overflow, as later math is signed. 1187311e3d4cSgeorges * Equally total_size needs to be checked after 1188311e3d4cSgeorges * each vector is added in, to be sure that 1189311e3d4cSgeorges * rogue values haven't overflowed the counter. 1190311e3d4cSgeorges */ 1191311e3d4cSgeorges if (((ssize32_t)sfv[i].sfv_len < 0) || 1192311e3d4cSgeorges ((ssize32_t)total_size < 0)) { 1193311e3d4cSgeorges /* 1194311e3d4cSgeorges * Truncate the vector to send data 1195311e3d4cSgeorges * described by elements before the 1196311e3d4cSgeorges * error. 1197311e3d4cSgeorges */ 1198311e3d4cSgeorges copy_cnt = i; 1199311e3d4cSgeorges first_vector_error = EINVAL; 1200311e3d4cSgeorges /* total_size can't be trusted */ 1201311e3d4cSgeorges if ((ssize32_t)total_size < 0) 1202311e3d4cSgeorges error = EINVAL; 1203311e3d4cSgeorges break; 1204311e3d4cSgeorges } 12057c478bd9Sstevel@tonic-gate } 1206311e3d4cSgeorges /* Nothing to do, process errors */ 1207311e3d4cSgeorges if (copy_cnt == 0) 1208311e3d4cSgeorges break; 1209311e3d4cSgeorges 12107c478bd9Sstevel@tonic-gate } else { 12117c478bd9Sstevel@tonic-gate #endif 12127c478bd9Sstevel@tonic-gate if (copyin(copy_vec, sfv, 12137c478bd9Sstevel@tonic-gate copy_cnt * sizeof (sendfilevec_t))) { 12147c478bd9Sstevel@tonic-gate error = EFAULT; 12157c478bd9Sstevel@tonic-gate break; 12167c478bd9Sstevel@tonic-gate } 12177c478bd9Sstevel@tonic-gate 12187c478bd9Sstevel@tonic-gate for (i = 0; i < copy_cnt; i++) { 12197c478bd9Sstevel@tonic-gate total_size += sfv[i].sfv_len; 1220311e3d4cSgeorges /* 1221311e3d4cSgeorges * Individual elements of the vector must not 1222311e3d4cSgeorges * wrap or overflow, as later math is signed. 1223311e3d4cSgeorges * Equally total_size needs to be checked after 1224311e3d4cSgeorges * each vector is added in, to be sure that 1225311e3d4cSgeorges * rogue values haven't overflowed the counter. 1226311e3d4cSgeorges */ 1227311e3d4cSgeorges if (((ssize_t)sfv[i].sfv_len < 0) || 1228311e3d4cSgeorges (total_size < 0)) { 1229311e3d4cSgeorges /* 1230311e3d4cSgeorges * Truncate the vector to send data 1231311e3d4cSgeorges * described by elements before the 1232311e3d4cSgeorges * error. 1233311e3d4cSgeorges */ 1234311e3d4cSgeorges copy_cnt = i; 1235311e3d4cSgeorges first_vector_error = EINVAL; 1236311e3d4cSgeorges /* total_size can't be trusted */ 1237311e3d4cSgeorges if (total_size < 0) 1238311e3d4cSgeorges error = EINVAL; 1239311e3d4cSgeorges break; 1240311e3d4cSgeorges } 12417c478bd9Sstevel@tonic-gate } 1242311e3d4cSgeorges /* Nothing to do, process errors */ 1243311e3d4cSgeorges if (copy_cnt == 0) 1244311e3d4cSgeorges break; 12457c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 12467c478bd9Sstevel@tonic-gate } 12477c478bd9Sstevel@tonic-gate #endif 12487c478bd9Sstevel@tonic-gate 12497c478bd9Sstevel@tonic-gate /* 12507c478bd9Sstevel@tonic-gate * The task between deciding to use sendvec_small_chunk 12517c478bd9Sstevel@tonic-gate * and sendvec_chunk is dependant on multiple things: 12527c478bd9Sstevel@tonic-gate * 12537c478bd9Sstevel@tonic-gate * i) latency is important for smaller files. So if the 12547c478bd9Sstevel@tonic-gate * data is smaller than 'tcp_slow_start_initial' times 12557c478bd9Sstevel@tonic-gate * maxblk, then use sendvec_small_chunk which creates 12563b3d24f3SJayakara Kini * maxblk size mblks and chains them together and sends 12577c478bd9Sstevel@tonic-gate * them to TCP in one shot. It also leaves 'wroff' size 12587c478bd9Sstevel@tonic-gate * space for the headers in each mblk. 12597c478bd9Sstevel@tonic-gate * 12607c478bd9Sstevel@tonic-gate * ii) for total size bigger than 'tcp_slow_start_initial' 12617c478bd9Sstevel@tonic-gate * time maxblk, its probably real file data which is 12627c478bd9Sstevel@tonic-gate * dominating. So its better to use sendvec_chunk because 12637c478bd9Sstevel@tonic-gate * performance goes to dog if we don't do pagesize reads. 12647c478bd9Sstevel@tonic-gate * sendvec_chunk will do pagesize reads and write them 12657c478bd9Sstevel@tonic-gate * in pagesize mblks to TCP. 12667c478bd9Sstevel@tonic-gate * 12677c478bd9Sstevel@tonic-gate * Side Notes: A write to file has not been optimized. 12687c478bd9Sstevel@tonic-gate * Future zero copy code will plugin into sendvec_chunk 12697c478bd9Sstevel@tonic-gate * only because doing zero copy for files smaller then 12707c478bd9Sstevel@tonic-gate * pagesize is useless. 12717c478bd9Sstevel@tonic-gate * 12727c478bd9Sstevel@tonic-gate * Note, if socket has NL7C enabled then call NL7C's 12732c9e429eSbrutus * senfilev() function to consume the sfv[]. 12747c478bd9Sstevel@tonic-gate */ 12757c478bd9Sstevel@tonic-gate if (is_sock) { 1276*0f1702c5SYu Xiangning if (!SOCK_IS_NONSTR(so) && 1277*0f1702c5SYu Xiangning _SOTOTPI(so)->sti_nl7c_flags != 0) { 1278*0f1702c5SYu Xiangning error = nl7c_sendfilev(so, &fileoff, 1279*0f1702c5SYu Xiangning sfv, copy_cnt, &count); 1280*0f1702c5SYu Xiangning } else if ((total_size <= (4 * maxblk)) && 1281*0f1702c5SYu Xiangning error == 0) { 1282*0f1702c5SYu Xiangning error = sendvec_small_chunk(fp, 1283*0f1702c5SYu Xiangning &fileoff, sfv, copy_cnt, 1284*0f1702c5SYu Xiangning total_size, maxblk, &count); 1285*0f1702c5SYu Xiangning } else { 1286*0f1702c5SYu Xiangning error = sendvec_chunk(fp, &fileoff, 1287*0f1702c5SYu Xiangning sfv, copy_cnt, &count); 12887c478bd9Sstevel@tonic-gate } 12897c478bd9Sstevel@tonic-gate } else { 12907c478bd9Sstevel@tonic-gate ASSERT(vp->v_type == VREG); 12917c478bd9Sstevel@tonic-gate error = sendvec_chunk(fp, &fileoff, sfv, copy_cnt, 12927c478bd9Sstevel@tonic-gate &count); 12937c478bd9Sstevel@tonic-gate } 12947c478bd9Sstevel@tonic-gate 12957c478bd9Sstevel@tonic-gate 12967c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 12977c478bd9Sstevel@tonic-gate if (get_udatamodel() == DATAMODEL_ILP32) 12987c478bd9Sstevel@tonic-gate copy_vec = (const struct sendfilevec *)((char *)copy_vec + 12997c478bd9Sstevel@tonic-gate (copy_cnt * sizeof (ksendfilevec32_t))); 13007c478bd9Sstevel@tonic-gate else 13017c478bd9Sstevel@tonic-gate #endif 13027c478bd9Sstevel@tonic-gate copy_vec += copy_cnt; 13037c478bd9Sstevel@tonic-gate sfvcnt -= copy_cnt; 1304311e3d4cSgeorges 1305311e3d4cSgeorges /* Process all vector members up to first error */ 1306311e3d4cSgeorges } while ((sfvcnt > 0) && first_vector_error == 0 && error == 0); 13077c478bd9Sstevel@tonic-gate 13087c478bd9Sstevel@tonic-gate if (vp->v_type == VREG) 13097c478bd9Sstevel@tonic-gate fp->f_offset += count; 13107c478bd9Sstevel@tonic-gate 13117c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(vp, V_WRITELOCK_TRUE, NULL); 13127c478bd9Sstevel@tonic-gate 13137c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 13147c478bd9Sstevel@tonic-gate if (get_udatamodel() == DATAMODEL_ILP32) { 13157c478bd9Sstevel@tonic-gate ssize32_t count32 = (ssize32_t)count; 13167c478bd9Sstevel@tonic-gate if (copyout(&count32, xferred, sizeof (count32))) 13177c478bd9Sstevel@tonic-gate error = EFAULT; 13187c478bd9Sstevel@tonic-gate releasef(fildes); 13197c478bd9Sstevel@tonic-gate if (error != 0) 13207c478bd9Sstevel@tonic-gate return (set_errno(error)); 1321311e3d4cSgeorges if (first_vector_error != 0) 1322311e3d4cSgeorges return (set_errno(first_vector_error)); 13237c478bd9Sstevel@tonic-gate return (count32); 13247c478bd9Sstevel@tonic-gate } 13257c478bd9Sstevel@tonic-gate #endif 13267c478bd9Sstevel@tonic-gate if (copyout(&count, xferred, sizeof (count))) 13277c478bd9Sstevel@tonic-gate error = EFAULT; 13287c478bd9Sstevel@tonic-gate releasef(fildes); 13297c478bd9Sstevel@tonic-gate if (error != 0) 13307c478bd9Sstevel@tonic-gate return (set_errno(error)); 1331311e3d4cSgeorges if (first_vector_error != 0) 1332311e3d4cSgeorges return (set_errno(first_vector_error)); 13337c478bd9Sstevel@tonic-gate return (count); 13347c478bd9Sstevel@tonic-gate err: 13357c478bd9Sstevel@tonic-gate ASSERT(error != 0); 13367c478bd9Sstevel@tonic-gate releasef(fildes); 13377c478bd9Sstevel@tonic-gate return (set_errno(error)); 13387c478bd9Sstevel@tonic-gate } 1339