diff options
Diffstat (limited to 'usr.sbin/mountd/mountd.c')
| -rw-r--r-- | usr.sbin/mountd/mountd.c | 148 |
1 files changed, 84 insertions, 64 deletions
diff --git a/usr.sbin/mountd/mountd.c b/usr.sbin/mountd/mountd.c index f7dddce9b298..291a0f5f8404 100644 --- a/usr.sbin/mountd/mountd.c +++ b/usr.sbin/mountd/mountd.c @@ -200,6 +200,8 @@ static void free_host(struct hostlist *); static void get_exportlist(void); static void insert_exports(struct exportlist *, struct exportlisthead *); static void free_exports(struct exportlisthead *); +static void read_exportfile(void); +static void delete_export(struct iovec *, int, struct statfs *, char *); static int get_host(char *, struct grouplist *, struct grouplist *); static struct hostlist *get_ht(void); static int get_line(void); @@ -1721,12 +1723,10 @@ get_exportlist(void) struct grouplist *grp, *tgrp; struct export_args export; struct iovec *iov; - struct statfs *fsp, *mntbufp; - struct xvfsconf vfc; + struct statfs *mntbufp; char errmsg[255]; int num, i; int iovlen; - int done; struct nfsex_args eargs; if (suspend_nfsd != 0) @@ -1781,47 +1781,8 @@ get_exportlist(void) build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg)); } - for (i = 0; i < num; i++) { - fsp = &mntbufp[i]; - if (getvfsbyname(fsp->f_fstypename, &vfc) != 0) { - syslog(LOG_ERR, "getvfsbyname() failed for %s", - fsp->f_fstypename); - continue; - } - - /* - * We do not need to delete "export" flag from - * filesystems that do not have it set. - */ - if (!(fsp->f_flags & MNT_EXPORTED)) - continue; - /* - * Do not delete export for network filesystem by - * passing "export" arg to nmount(). - * It only makes sense to do this for local filesystems. - */ - if (vfc.vfc_flags & VFCF_NETWORK) - continue; - - iov[1].iov_base = fsp->f_fstypename; - iov[1].iov_len = strlen(fsp->f_fstypename) + 1; - iov[3].iov_base = fsp->f_mntonname; - iov[3].iov_len = strlen(fsp->f_mntonname) + 1; - iov[5].iov_base = fsp->f_mntfromname; - iov[5].iov_len = strlen(fsp->f_mntfromname) + 1; - errmsg[0] = '\0'; - - /* - * EXDEV is returned when path exists but is not a - * mount point. May happens if raced with unmount. - */ - if (nmount(iov, iovlen, fsp->f_flags) < 0 && - errno != ENOENT && errno != ENOTSUP && errno != EXDEV) { - syslog(LOG_ERR, - "can't delete exports for %s: %m %s", - fsp->f_mntonname, errmsg); - } - } + for (i = 0; i < num; i++) + delete_export(iov, iovlen, &mntbufp[i], errmsg); if (iov != NULL) { /* Free strings allocated by strdup() in getmntopts.c */ @@ -1837,26 +1798,7 @@ get_exportlist(void) iovlen = 0; } - /* - * Read in the exports file and build the list, calling - * nmount() as we go along to push the export rules into the kernel. - */ - done = 0; - for (i = 0; exnames[i] != NULL; i++) { - if (debug) - warnx("reading exports from %s", exnames[i]); - if ((exp_file = fopen(exnames[i], "r")) == NULL) { - syslog(LOG_WARNING, "can't open %s", exnames[i]); - continue; - } - get_exportlist_one(); - fclose(exp_file); - done++; - } - if (done == 0) { - syslog(LOG_ERR, "can't open any exports file"); - exit(2); - } + read_exportfile(); /* * If there was no public fh, clear any previous one set. @@ -1894,6 +1836,84 @@ free_exports(struct exportlisthead *exhp) } /* + * Read the exports file(s) and call get_exportlist_one() for each line. + */ +static void +read_exportfile(void) +{ + int done, i; + + /* + * Read in the exports file and build the list, calling + * nmount() as we go along to push the export rules into the kernel. + */ + done = 0; + for (i = 0; exnames[i] != NULL; i++) { + if (debug) + warnx("reading exports from %s", exnames[i]); + if ((exp_file = fopen(exnames[i], "r")) == NULL) { + syslog(LOG_WARNING, "can't open %s", exnames[i]); + continue; + } + get_exportlist_one(); + fclose(exp_file); + done++; + } + if (done == 0) { + syslog(LOG_ERR, "can't open any exports file"); + exit(2); + } +} + +/* + * Delete an exports entry. + */ +static void +delete_export(struct iovec *iov, int iovlen, struct statfs *fsp, char *errmsg) +{ + struct xvfsconf vfc; + + if (getvfsbyname(fsp->f_fstypename, &vfc) != 0) { + syslog(LOG_ERR, "getvfsbyname() failed for %s", + fsp->f_fstypename); + return; + } + + /* + * We do not need to delete "export" flag from + * filesystems that do not have it set. + */ + if (!(fsp->f_flags & MNT_EXPORTED)) + return; + /* + * Do not delete export for network filesystem by + * passing "export" arg to nmount(). + * It only makes sense to do this for local filesystems. + */ + if (vfc.vfc_flags & VFCF_NETWORK) + return; + + iov[1].iov_base = fsp->f_fstypename; + iov[1].iov_len = strlen(fsp->f_fstypename) + 1; + iov[3].iov_base = fsp->f_mntonname; + iov[3].iov_len = strlen(fsp->f_mntonname) + 1; + iov[5].iov_base = fsp->f_mntfromname; + iov[5].iov_len = strlen(fsp->f_mntfromname) + 1; + errmsg[0] = '\0'; + + /* + * EXDEV is returned when path exists but is not a + * mount point. May happens if raced with unmount. + */ + if (nmount(iov, iovlen, fsp->f_flags) < 0 && errno != ENOENT && + errno != ENOTSUP && errno != EXDEV) { + syslog(LOG_ERR, + "can't delete exports for %s: %m %s", + fsp->f_mntonname, errmsg); + } +} + +/* * Allocate an export list element */ static struct exportlist * |