diff options
Diffstat (limited to 'usr/src/uts/common/syscall/symlink.c')
| -rw-r--r-- | usr/src/uts/common/syscall/symlink.c | 43 |
1 files changed, 31 insertions, 12 deletions
diff --git a/usr/src/uts/common/syscall/symlink.c b/usr/src/uts/common/syscall/symlink.c index 99dcdf01a4..87fa7bee60 100644 --- a/usr/src/uts/common/syscall/symlink.c +++ b/usr/src/uts/common/syscall/symlink.c @@ -18,9 +18,9 @@ * * CDDL HEADER END */ + /* - * Copyright 2010 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 1994, 2010, Oracle and/or its affiliates. All rights reserved. */ /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ @@ -40,6 +40,8 @@ #include <sys/pathname.h> #include <sys/vfs.h> #include <sys/vnode.h> +#include <sys/file.h> +#include <sys/fcntl.h> #include <sys/proc.h> #include <sys/uio.h> #include <sys/debug.h> @@ -51,8 +53,9 @@ * name is passed as string argument, not converted to vnode reference. */ int -symlink(char *target, char *linkname) +symlinkat(char *target, int dfd, char *linkname) { + vnode_t *startvp; vnode_t *dvp; struct vattr vattr; struct pathname lpn; @@ -60,15 +63,23 @@ symlink(char *target, char *linkname) size_t tlen; int error; int estale_retry = 0; + int auditing = AU_AUDITING(); + + if (linkname == NULL) + return (set_errno(EFAULT)); + if ((error = fgetstartvp(dfd, linkname, &startvp)) != 0) + return (set_errno(error)); top: if (error = pn_get(linkname, UIO_USERSPACE, &lpn)) - return (set_errno(error)); - if (error = lookuppn(&lpn, NULL, NO_FOLLOW, &dvp, NULLVPP)) { + goto out; + if (auditing && startvp != NULL) + audit_setfsat_path(2); + if (error = lookuppnat(&lpn, NULL, NO_FOLLOW, &dvp, NULLVPP, startvp)) { pn_free(&lpn); - if ((error == ESTALE) && fs_need_estale_retry(estale_retry++)) + if (error == ESTALE && fs_need_estale_retry(estale_retry++)) goto top; - return (set_errno(error)); + goto out; } if (vn_is_readonly(dvp)) error = EROFS; @@ -82,7 +93,7 @@ top: vattr.va_mask = AT_TYPE|AT_MODE; error = VOP_SYMLINK(dvp, lpn.pn_path, &vattr, tbuf, CRED(), NULL, 0); - if (AU_AUDITING()) + if (auditing) audit_symlink_create(dvp, lpn.pn_path, tbuf, error); } @@ -90,10 +101,18 @@ top: } pn_free(&lpn); VN_RELE(dvp); - if (error) { - if ((error == ESTALE) && fs_need_estale_retry(estale_retry++)) - goto top; + if (error == ESTALE && fs_need_estale_retry(estale_retry++)) + goto top; +out: + if (startvp != NULL) + VN_RELE(startvp); + if (error) return (set_errno(error)); - } return (0); } + +int +symlink(char *target, char *linkname) +{ + return (symlinkat(target, AT_FDCWD, linkname)); +} |