| 1 | /* Created by: Robert French |
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| 2 | * |
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| 3 | * $Source: /afs/dev.mit.edu/source/repository/athena/bin/attach/rvd.c,v $ |
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| 4 | * $Author: ghudson $ |
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| 5 | * |
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| 6 | * Copyright (c) 1988 by the Massachusetts Institute of Technology. |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef lint |
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| 10 | static char rcsid_rvd_c[] = "$Header: /afs/dev.mit.edu/source/repository/athena/bin/attach/rvd.c,v 1.8 1996-09-19 22:13:17 ghudson Exp $"; |
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| 11 | #endif |
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| 12 | |
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| 13 | #include "attach.h" |
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| 14 | |
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| 15 | #ifdef RVD /* Don't do anything if RVD not defined */ |
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| 16 | #include "rvdlib.h" |
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| 17 | #include <sys/wait.h> |
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| 18 | |
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| 19 | extern char *rvd_error(); |
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| 20 | |
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| 21 | /* |
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| 22 | * Attach an RVD |
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| 23 | */ |
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| 24 | |
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| 25 | rvd_attach(at, mopt, errorout) |
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| 26 | struct _attachtab *at; |
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| 27 | struct mntopts *mopt; |
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| 28 | int errorout; |
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| 29 | { |
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| 30 | char buf[BUFSIZ]; |
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| 31 | union wait waitb; |
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| 32 | int vddrive, pid; |
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| 33 | char *passwd; |
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| 34 | |
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| 35 | if (avail_drive(at->hostaddr[0], at->hostdir, &vddrive) == FAILURE) { |
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| 36 | if (errorout) |
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| 37 | fprintf(stderr, "%s: No free RVD drives\n", at->hesiodname); |
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| 38 | return (FAILURE); |
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| 39 | } |
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| 40 | |
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| 41 | if (debug_flag) |
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| 42 | printf("avail_drive returned %d\n", vddrive); |
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| 43 | |
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| 44 | at->drivenum = vddrive; |
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| 45 | |
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| 46 | passwd = NULL; |
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| 47 | |
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| 48 | while (rvd_spinup(at->hostaddr[0], at->hostdir, |
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| 49 | vddrive, at->mode, at->host, passwd) == FAILURE && |
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| 50 | rvderrno == RVDEBPWD) { |
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| 51 | fprintf(stderr, "%s: Need password for RVD spinup\n", |
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| 52 | at->hesiodname); |
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| 53 | if (!isatty(fileno(stdin))) { |
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| 54 | error_status = ERR_ATTACHNEEDPW; |
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| 55 | return (FAILURE); |
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| 56 | } |
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| 57 | passwd = (char *)getpass("Password:"); |
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| 58 | if (!*passwd) { |
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| 59 | fprintf(stderr, "%s: Null password, ignoring filesystem\n", |
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| 60 | at->hesiodname); |
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| 61 | return (FAILURE); |
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| 62 | } |
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| 63 | } |
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| 64 | |
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| 65 | if (rvderrno && rvderrno != RVDEIDA && |
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| 66 | rvderrno != EBUSY /* kernel bug */) { |
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| 67 | if (errorout) |
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| 68 | fprintf(stderr, "%s: Error in RVD spinup: %d -> %s\n", |
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| 69 | at->hesiodname, rvderrno, rvd_error(rvderrno)); |
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| 70 | switch(rvderrno) |
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| 71 | { |
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| 72 | case RVDENOENT: |
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| 73 | case RVDENOTAVAIL: |
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| 74 | case RVDEPACK: |
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| 75 | case RVDEPNM: |
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| 76 | error_status = ERR_ATTACHNOFILSYS; |
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| 77 | break; |
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| 78 | default: |
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| 79 | error_status = ERR_SOMETHING; |
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| 80 | } |
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| 81 | return (FAILURE); |
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| 82 | } |
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| 83 | |
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| 84 | if((pid = vfork()) == 0) { |
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| 85 | execl(RVDGETM_FULLNAME, RVDGETM_SHORTNAME, at->host, 0); |
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| 86 | _exit(0); |
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| 87 | } else if(pid == -1) { |
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| 88 | perror("vfork"); |
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| 89 | } else { |
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| 90 | (void) wait(&waitb); |
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| 91 | } |
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| 92 | |
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| 93 | if (at->mode == 'w' && rvderrno != RVDEIDA && |
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| 94 | rvderrno != EBUSY && !skip_fsck) { |
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| 95 | if (perform_fsck(vdnam(buf, vddrive), |
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| 96 | at->hesiodname, 1) == FAILURE) { |
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| 97 | rvd_spindown(vddrive); |
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| 98 | return(FAILURE); |
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| 99 | } |
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| 100 | } |
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| 101 | |
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| 102 | /* XXX This is kind of bogus, because if a filesystem has a number |
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| 103 | * of hesiod entries, and the mount point is busy, each one will |
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| 104 | * be tried until the last one fails, then an error printed. |
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| 105 | * C'est la vie. |
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| 106 | */ |
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| 107 | |
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| 108 | if (mountfs(at, vdnam(buf, vddrive), mopt, errorout) == FAILURE) { |
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| 109 | rvd_spindown(vddrive); |
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| 110 | return (FAILURE); |
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| 111 | } |
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| 112 | |
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| 113 | return (SUCCESS); |
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| 114 | } |
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| 115 | |
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| 116 | /* |
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| 117 | * Detach a RVD |
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| 118 | */ |
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| 119 | rvd_detach(at) |
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| 120 | struct _attachtab *at; |
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| 121 | { |
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| 122 | char buf[BUFSIZ]; |
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| 123 | |
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| 124 | if (at->flags & FLAG_PERMANENT) { |
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| 125 | if (debug_flag) |
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| 126 | printf("Permanent flag on, skipping umount.\n"); |
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| 127 | return(SUCCESS); |
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| 128 | } |
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| 129 | |
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| 130 | if (unmount_42(at->hesiodname, at->mntpt, vdnam(buf,at->drivenum)) == FAILURE) |
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| 131 | return (FAILURE); |
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| 132 | rvd_spindown(at->drivenum); |
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| 133 | return (SUCCESS); |
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| 134 | } |
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| 135 | |
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| 136 | /* |
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| 137 | * Parsing of explicit RVD file types |
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| 138 | */ |
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| 139 | char **rvd_explicit(name) |
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| 140 | char *name; |
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| 141 | { |
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| 142 | char temp[BUFSIZ]; |
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| 143 | char *pack; |
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| 144 | char newmntpt[BUFSIZ]; |
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| 145 | extern char *exp_hesptr[2]; |
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| 146 | |
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| 147 | strcpy(temp, name); |
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| 148 | pack = strchr(temp, ':'); |
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| 149 | if (!pack) { |
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| 150 | fprintf(stderr, "%s: Illegal explicit definition for type %s\n", |
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| 151 | name, filsys_type); |
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| 152 | return (0); |
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| 153 | } |
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| 154 | *pack = '\0'; |
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| 155 | pack++; |
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| 156 | if (!mntpt) { |
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| 157 | sprintf(newmntpt, "/%s/%s", temp, pack); |
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| 158 | } |
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| 159 | sprintf(exp_hesline, "RVD %s %s %c %s", pack, temp, override_mode ? |
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| 160 | override_mode : 'w', mntpt ? mntpt : newmntpt); |
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| 161 | exp_hesptr[0] = exp_hesline; |
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| 162 | exp_hesptr[1] = 0; |
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| 163 | return(exp_hesptr); |
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| 164 | } |
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| 165 | |
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| 166 | #endif /* RVD */ |
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