ptyfs.h revision 1.3
1 /* $NetBSD: ptyfs.h,v 1.3 2004/12/16 05:30:18 atatat Exp $ */ 2 3 /* 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Jan-Simon Pendry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)procfs.h 8.9 (Berkeley) 5/14/95 35 */ 36 37 /* 38 * Copyright (c) 1993 Jan-Simon Pendry 39 * 40 * This code is derived from software contributed to Berkeley by 41 * Jan-Simon Pendry. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by the University of 54 * California, Berkeley and its contributors. 55 * 4. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)procfs.h 8.9 (Berkeley) 5/14/95 72 */ 73 74 #ifdef _KERNEL 75 /* 76 * The different types of node in a ptyfs filesystem 77 */ 78 typedef enum { 79 PTYFSpts, /* The slave side of a pty */ 80 PTYFSptc, /* The controlling side of a pty */ 81 PTYFSroot, /* the filesystem root */ 82 } ptyfstype; 83 84 /* 85 * control data for the proc file system. 86 */ 87 struct ptyfsnode { 88 LIST_ENTRY(ptyfsnode) ptyfs_hash; /* hash chain */ 89 struct vnode *ptyfs_vnode; /* vnode associated with this ptyfsnode */ 90 ptyfstype ptyfs_type; /* type of ptyfs node */ 91 int ptyfs_pty; /* the pty index */ 92 u_long ptyfs_fileno; /* unique file id */ 93 int ptyfs_flag; /* status flag for times */ 94 #define PTYFS_ACCESS 1 95 #define PTYFS_MODIFY 2 96 #define PTYFS_CHANGE 4 97 /* Attribute information */ 98 uid_t ptyfs_uid; 99 gid_t ptyfs_gid; 100 mode_t ptyfs_mode; 101 int ptyfs_flags; 102 struct timespec ptyfs_ctime, ptyfs_mtime, ptyfs_atime, ptyfs_birthtime; 103 }; 104 105 struct ptyfsmount { 106 gid_t pmnt_gid; 107 mode_t pmnt_mode; 108 }; 109 110 #define VFSTOPTY(mp) ((struct ptyfsmount *)(mp)->mnt_data) 111 112 #endif /* _KERNEL */ 113 114 struct ptyfs_args { 115 int version; 116 gid_t gid; 117 mode_t mode; 118 }; 119 120 #define PTYFS_ARGSVERSION 1 121 122 /* 123 * Kernel stuff follows 124 */ 125 #ifdef _KERNEL 126 127 #define UIO_MX 32 128 129 #define PTYFS_FILENO(pty, type) \ 130 ((type == PTYFSroot) ? 2 : \ 131 ((((pty) + 1) * 2 + (((type) == PTYFSpts) ? 1 : 2)))) 132 133 #define PTYFS_MAKEDEV(ptyfs) \ 134 pty_makedev((ptyfs)->ptyfs_type == PTYFSpts ? 't' : 'p', (ptyfs)->ptyfs_pty) 135 136 /* 137 * Convert between ptyfsnode vnode 138 */ 139 #define VTOPTYFS(vp) ((struct ptyfsnode *)(vp)->v_data) 140 #define PTYFSTOV(ptyfs) ((ptyfs)->ptyfs_vnode) 141 142 int ptyfs_freevp(struct vnode *); 143 int ptyfs_allocvp(struct mount *, struct vnode **, ptyfstype, int, 144 struct proc *); 145 void ptyfs_hashinit(void); 146 void ptyfs_hashreinit(void); 147 void ptyfs_hashdone(void); 148 149 extern int (**ptyfs_vnodeop_p)(void *); 150 extern struct vfsops ptyfs_vfsops; 151 152 int ptyfs_root(struct mount *, struct vnode **); 153 154 #ifdef SYSCTL_SETUP_PROTO 155 SYSCTL_SETUP_PROTO(sysctl_vfs_ptyfs_setup); 156 #endif /* SYSCTL_SETUP_PROTO */ 157 #endif /* _KERNEL */ 158
Indexes created Thu Sep 25 14:09:45 GMT 2025