netmount, localmount, halt.sh and net scripts now check OS specific flags to see if a mount is network mounted (linux = fstab, *bsd = "local" in mount options) or not, #192772.
This commit is contained in:
Roy Marples
@@ -15,6 +15,8 @@
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#include <sys/param.h>
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#include <sys/ucred.h>
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#include <sys/mount.h>
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#elif defined (__linux__)
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#include <mntent.h>
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#endif
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#include <errno.h>
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@@ -38,6 +40,12 @@ typedef enum {
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mount_options
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} mount_type;
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typedef enum {
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net_ignore,
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net_yes,
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net_no
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} net_opts;
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struct args {
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regex_t *node_regex;
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regex_t *skip_node_regex;
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@@ -47,10 +55,12 @@ struct args {
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regex_t *skip_options_regex;
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char **mounts;
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mount_type mount_type;
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net_opts netdev;
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};
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static int process_mount (char ***list, struct args *args,
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char *from, char *to, char *fstype, char *options)
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char *from, char *to, char *fstype, char *options,
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int netdev)
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{
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char *p;
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@@ -62,26 +72,34 @@ static int process_mount (char ***list, struct args *args,
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return (-1);
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#endif
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if (args->node_regex &&
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regexec (args->node_regex, from, 0, NULL, 0) != 0)
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return (1);
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if (args->skip_node_regex &&
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regexec (args->skip_node_regex, from, 0, NULL, 0) == 0)
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return (1);
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if (args->netdev == net_yes && netdev != -1) {
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if (netdev != 0)
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return (1);
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} else if (args->netdev == net_no && netdev != -1) {
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if (netdev != 1)
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return (1);
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} else {
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if (args->node_regex &&
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regexec (args->node_regex, from, 0, NULL, 0) != 0)
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return (1);
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if (args->skip_node_regex &&
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regexec (args->skip_node_regex, from, 0, NULL, 0) == 0)
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return (1);
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if (args->fstype_regex &&
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regexec (args->fstype_regex, fstype, 0, NULL, 0) != 0)
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return (-1);
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if (args->skip_fstype_regex &&
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regexec (args->skip_fstype_regex, fstype, 0, NULL, 0) == 0)
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return (-1);
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if (args->fstype_regex &&
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regexec (args->fstype_regex, fstype, 0, NULL, 0) != 0)
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return (-1);
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if (args->skip_fstype_regex &&
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regexec (args->skip_fstype_regex, fstype, 0, NULL, 0) == 0)
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return (-1);
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if (args->options_regex &&
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regexec (args->options_regex, options, 0, NULL, 0) != 0)
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return (-1);
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if (args->skip_options_regex &&
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regexec (args->skip_options_regex, options, 0, NULL, 0) == 0)
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return (-1);
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if (args->options_regex &&
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regexec (args->options_regex, options, 0, NULL, 0) != 0)
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return (-1);
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if (args->skip_options_regex &&
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regexec (args->skip_options_regex, options, 0, NULL, 0) == 0)
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return (-1);
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}
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if (args->mounts) {
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bool found = false;
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@@ -169,9 +187,12 @@ static char **find_mounts (struct args *args)
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eerrorx ("getmntinfo: %s", strerror (errno));
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for (i = 0; i < nmnts; i++) {
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int netdev = 0;
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flags = mnts[i].f_flags & MNT_VISFLAGMASK;
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for (o = optnames; flags && o->o_opt; o++) {
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if (flags & o->o_opt) {
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if (o->o_opt == MNT_LOCAL)
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netdev = 1;
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if (! options)
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options = xstrdup (o->o_name);
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else {
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@@ -188,7 +209,8 @@ static char **find_mounts (struct args *args)
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mnts[i].f_mntfromname,
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mnts[i].f_mntonname,
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mnts[i].f_fstypename,
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options);
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options,
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netdev);
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free (options);
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options = NULL;
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@@ -198,6 +220,20 @@ static char **find_mounts (struct args *args)
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}
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#elif defined (__linux__)
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static struct mntent *getmntfile (const char *file)
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{
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struct mntent *ent = NULL;
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FILE *fp;
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fp = setmntent ("/etc/fstab", "r");
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while ((ent = getmntent (fp)))
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if (strcmp (file, ent->mnt_dir) == 0)
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break;
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endmntent (fp);
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return (ent);
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}
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static char **find_mounts (struct args *args)
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{
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FILE *fp;
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@@ -208,18 +244,26 @@ static char **find_mounts (struct args *args)
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char *fst;
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char *opts;
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char **list = NULL;
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struct mntent *ent;
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int netdev;
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if ((fp = fopen ("/proc/mounts", "r")) == NULL)
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eerrorx ("getmntinfo: %s", strerror (errno));
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while (fgets (buffer, sizeof (buffer), fp)) {
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netdev = -1;
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p = buffer;
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from = strsep (&p, " ");
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to = strsep (&p, " ");
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fst = strsep (&p, " ");
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opts = strsep (&p, " ");
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process_mount (&list, args, from, to, fst, opts);
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if ((ent = getmntfile (to))) {
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if (strstr (ent->mnt_opts, "_netdev"))
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netdev = 0;
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}
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process_mount (&list, args, from, to, fst, opts, netdev);
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}
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fclose (fp);
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@@ -260,6 +304,8 @@ static struct option longopts[] = {
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{ "options", 0, NULL, 'i'},
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{ "fstype", 0, NULL, 's'},
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{ "node", 0, NULL, 't'},
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{ "netdev", 0, NULL, 'e'},
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{ "nonetdev", 0, NULL, 'E'},
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longopts_COMMON
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{ NULL, 0, NULL, 0}
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};
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@@ -298,11 +344,18 @@ int mountinfo (int argc, char **argv)
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memset (&args, 0, sizeof (struct args));
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args.mount_type = mount_to;
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args.netdev = net_ignore;
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while ((opt = getopt_long (argc, argv, getoptstring,
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longopts, (int *) 0)) != -1)
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{
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switch (opt) {
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case 'e':
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args.netdev = net_yes;
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break;
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case 'E':
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args.netdev = net_no;
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break;
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case 'f':
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DO_REG (args.fstype_regex);
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break;
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