X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=support%2Fnsm%2Ffile.c;fp=support%2Fnsm%2Ffile.c;h=4dfc235dce5bc4f28562145420f236cc07123603;hp=0000000000000000000000000000000000000000;hb=f16fb1cdc99fb1bd62767b133bec6358e7a793e1;hpb=917cd9a5532d90745d94045f49ee49d0a7636d6d
diff --git a/support/nsm/file.c b/support/nsm/file.c
new file mode 100644
index 0000000..4dfc235
--- /dev/null
+++ b/support/nsm/file.c
@@ -0,0 +1,819 @@
+/*
+ * Copyright 2009 Oracle. All rights reserved.
+ *
+ * This file is part of nfs-utils.
+ *
+ * nfs-utils is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * nfs-utils is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with nfs-utils. If not, see .
+ */
+
+/*
+ * NSM for Linux.
+ *
+ * Callback information and NSM state is stored in files, usually
+ * under /var/lib/nfs. A database of information contained in local
+ * files stores NLM callback data and what remote peers to notify of
+ * reboots.
+ *
+ * For each monitored remote peer, a text file is created under the
+ * directory specified by NSM_MONITOR_DIR. The name of the file
+ * is a valid DNS hostname. The hostname string must be a valid
+ * ASCII DNS name, and must not contain slash characters, white space,
+ * or '\0' (ie. anything that might have some special meaning in a
+ * path name).
+ *
+ * The contents of each file include seven blank-separated fields of
+ * text, finished with '\n'. The first field contains the network
+ * address of the NLM service to call back. The current implementation
+ * supports using only IPv4 addresses, so the only contents of this
+ * field are a network order IPv4 address expressed in 8 hexadecimal
+ * characters.
+ *
+ * The next four fields are text strings of hexadecimal characters,
+ * representing:
+ *
+ * 2. A 4 byte RPC program number of the NLM service to call back
+ * 3. A 4 byte RPC version number of the NLM service to call back
+ * 4. A 4 byte RPC procedure number of the NLM service to call back
+ * 5. A 16 byte opaque cookie that the NLM service uses to identify
+ * the monitored host
+ *
+ * The sixth field is the monitored host's mon_name, passed to statd
+ * via an SM_MON request.
+ *
+ * The seventh field is the my_name for this peer, which is the
+ * hostname of the local NLM (currently on Linux, the result of
+ * `uname -n`). This can be used as the source address/hostname
+ * when sending SM_NOTIFY requests.
+ *
+ * The NSM protocol does not limit the contents of these strings
+ * in any way except that they must fit into 1024 bytes. Our
+ * implementation requires that these strings not contain
+ * white space or '\0'.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include
+#endif
+
+#include
+#include
+
+#include
+#include
+#include
+#ifndef S_SPLINT_S
+#include
+#endif
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include "xlog.h"
+#include "nsm.h"
+
+#define RPCARGSLEN (4 * (8 + 1))
+#define LINELEN (RPCARGSLEN + SM_PRIV_SIZE * 2 + 1)
+
+#define NSM_KERNEL_STATE_FILE "/proc/sys/fs/nfs/nsm_local_state"
+
+/*
+ * Some distributions place statd's files in a subdirectory
+ */
+#define NSM_PATH_EXTENSION
+/* #define NSM_PATH_EXTENSION "/statd" */
+
+#define NSM_DEFAULT_STATEDIR NFS_STATEDIR NSM_PATH_EXTENSION
+
+static char nsm_base_dirname[PATH_MAX] = NSM_DEFAULT_STATEDIR;
+
+#define NSM_MONITOR_DIR "sm"
+#define NSM_NOTIFY_DIR "sm.bak"
+#define NSM_STATE_FILE "state"
+
+
+static _Bool
+error_check(const int len, const size_t buflen)
+{
+ return (len < 0) || ((size_t)len >= buflen);
+}
+
+static _Bool
+exact_error_check(const ssize_t len, const size_t buflen)
+{
+ return (len < 0) || ((size_t)len != buflen);
+}
+
+/*
+ * Returns a dynamically allocated, '\0'-terminated buffer
+ * containing an appropriate pathname, or NULL if an error
+ * occurs. Caller must free the returned result with free(3).
+ */
+__attribute_malloc__
+static char *
+nsm_make_record_pathname(const char *directory, const char *hostname)
+{
+ const char *c;
+ size_t size;
+ char *path;
+ int len;
+
+ /*
+ * Block hostnames that contain characters that have
+ * meaning to the file system (like '/'), or that can
+ * be confusing on visual inspection (like ' ').
+ */
+ for (c = hostname; *c != '\0'; c++)
+ if (*c == '/' || isspace((int)*c) != 0) {
+ xlog(D_GENERAL, "Hostname contains invalid characters");
+ return NULL;
+ }
+
+ size = strlen(nsm_base_dirname) + strlen(directory) + strlen(hostname) + 3;
+ if (size > PATH_MAX) {
+ xlog(D_GENERAL, "Hostname results in pathname that is too long");
+ return NULL;
+ }
+
+ path = malloc(size);
+ if (path == NULL) {
+ xlog(D_GENERAL, "Failed to allocate memory for pathname");
+ return NULL;
+ }
+
+ len = snprintf(path, size, "%s/%s/%s",
+ nsm_base_dirname, directory, hostname);
+ if (error_check(len, size)) {
+ xlog(D_GENERAL, "Pathname did not fit in specified buffer");
+ free(path);
+ return NULL;
+ }
+
+ return path;
+}
+
+/*
+ * Returns a dynamically allocated, '\0'-terminated buffer
+ * containing an appropriate pathname, or NULL if an error
+ * occurs. Caller must free the returned result with free(3).
+ */
+__attribute_malloc__
+static char *
+nsm_make_pathname(const char *directory)
+{
+ size_t size;
+ char *path;
+ int len;
+
+ size = strlen(nsm_base_dirname) + strlen(directory) + 2;
+ if (size > PATH_MAX)
+ return NULL;
+
+ path = malloc(size);
+ if (path == NULL)
+ return NULL;
+
+ len = snprintf(path, size, "%s/%s", nsm_base_dirname, directory);
+ if (error_check(len, size)) {
+ free(path);
+ return NULL;
+ }
+
+ return path;
+}
+
+/**
+ * nsm_setup_pathnames - set up pathname
+ * @progname: C string containing name of program, for error messages
+ * @parentdir: C string containing pathname to on-disk state, or NULL
+ *
+ * This runs before logging is set up, so error messages are directed
+ * to stderr.
+ *
+ * Returns true and sets up our pathnames, if @parentdir was valid
+ * and usable; otherwise false is returned.
+ */
+_Bool
+nsm_setup_pathnames(const char *progname, const char *parentdir)
+{
+ static char buf[PATH_MAX];
+ struct stat st;
+ char *path;
+
+ /* First: test length of name and whether it exists */
+ if (lstat(parentdir, &st) == -1) {
+ (void)fprintf(stderr, "%s: Failed to stat %s: %s",
+ progname, parentdir, strerror(errno));
+ return false;
+ }
+
+ /* Ensure we have a clean directory pathname */
+ strncpy(buf, parentdir, sizeof(buf));
+ path = dirname(buf);
+ if (*path == '.') {
+ (void)fprintf(stderr, "%s: Unusable directory %s",
+ progname, parentdir);
+ return false;
+ }
+
+ xlog(D_CALL, "Using %s as the state directory", parentdir);
+ strncpy(nsm_base_dirname, parentdir, sizeof(nsm_base_dirname));
+ return true;
+}
+
+/**
+ * nsm_is_default_parentdir - check if parent directory is default
+ *
+ * Returns true if the active statd parent directory, set by
+ * nsm_change_pathname(), is the same as the built-in default
+ * parent directory; otherwise false is returned.
+ */
+_Bool
+nsm_is_default_parentdir(void)
+{
+ return strcmp(nsm_base_dirname, NSM_DEFAULT_STATEDIR) == 0;
+}
+
+/**
+ * nsm_drop_privileges - drop root privileges
+ * @pidfd: file descriptor of a pid file
+ *
+ * Returns true if successful, or false if some error occurred.
+ *
+ * Set our effective UID and GID to that of our on-disk database.
+ */
+_Bool
+nsm_drop_privileges(const int pidfd)
+{
+ struct stat st;
+
+ (void)umask(S_IRWXO);
+
+ /*
+ * XXX: If we can't stat dirname, or if dirname is owned by
+ * root, we should use "statduser" instead, which is set up
+ * by configure.ac. Nothing in nfs-utils seems to use
+ * "statduser," though.
+ */
+ if (lstat(nsm_base_dirname, &st) == -1) {
+ xlog(L_ERROR, "Failed to stat %s: %m", nsm_base_dirname);
+ return false;
+ }
+
+ if (st.st_uid == 0) {
+ xlog_warn("Running as root. "
+ "chown %s to choose different user", nsm_base_dirname);
+ return true;
+ }
+
+ if (chdir(nsm_base_dirname) == -1) {
+ xlog(L_ERROR, "Failed to change working directory to %s: %m",
+ nsm_base_dirname);
+ return false;
+ }
+
+ /*
+ * If the pidfile happens to reside on NFS, dropping privileges
+ * will probably cause us to lose access, even though we are
+ * holding it open. Chown it to prevent this.
+ */
+ if (pidfd >= 0)
+ if (fchown(pidfd, st.st_uid, st.st_gid) == -1)
+ xlog_warn("Failed to change owner of pidfile: %m");
+
+ if (setgroups(0, NULL) == -1) {
+ xlog(L_ERROR, "Failed to drop supplementary groups: %m");
+ return false;
+ }
+
+ /*
+ * ORDER
+ *
+ * setgid(2) first, as setuid(2) may remove privileges needed
+ * to set the group id.
+ */
+ if (setgid(st.st_gid) == -1 || setuid(st.st_uid) == -1) {
+ xlog(L_ERROR, "Failed to drop privileges: %m");
+ return false;
+ }
+
+ xlog(D_CALL, "Effective UID, GID: %u, %u", st.st_uid, st.st_gid);
+ return true;
+}
+
+/**
+ * nsm_get_state - retrieve on-disk NSM state number
+ *
+ * Returns an odd NSM state number read from disk, or an initial
+ * state number. Zero is returned if some error occurs.
+ */
+int
+nsm_get_state(_Bool update)
+{
+ int fd, state = 0;
+ ssize_t result;
+ char *path = NULL;
+ char *newpath = NULL;
+
+ path = nsm_make_pathname(NSM_STATE_FILE);
+ if (path == NULL) {
+ xlog(L_ERROR, "Failed to allocate path for " NSM_STATE_FILE);
+ goto out;
+ }
+
+ fd = open(path, O_RDONLY);
+ if (fd == -1) {
+ if (errno != ENOENT) {
+ xlog(L_ERROR, "Failed to open %s: %m", path);
+ goto out;
+ }
+
+ xlog(L_NOTICE, "Initializing NSM state");
+ state = 1;
+ update = true;
+ goto update;
+ }
+
+ result = read(fd, &state, sizeof(state));
+ if (exact_error_check(result, sizeof(state))) {
+ xlog_warn("Failed to read %s: %m", path);
+
+ xlog(L_NOTICE, "Initializing NSM state");
+ state = 1;
+ update = true;
+ goto update;
+ }
+
+ if ((state & 1) == 0)
+ state++;
+
+update:
+ (void)close(fd);
+
+ if (update) {
+ state += 2;
+
+ newpath = nsm_make_pathname(NSM_STATE_FILE ".new");
+ if (newpath == NULL) {
+ xlog(L_ERROR,
+ "Failed to create path for " NSM_STATE_FILE ".new");
+ state = 0;
+ goto out;
+ }
+
+ fd = open(newpath, O_CREAT | O_SYNC | O_WRONLY, 0644);
+ if (fd == -1) {
+ xlog(L_ERROR, "Failed to create %s: %m", newpath);
+ state = 0;
+ goto out;
+ }
+
+ result = write(fd, &state, sizeof(state));
+ if (exact_error_check(result, sizeof(state))) {
+ xlog(L_ERROR, "Failed to write %s: %m", newpath);
+ (void)close(fd);
+ (void)unlink(newpath);
+ state = 0;
+ goto out;
+ }
+
+ if (close(fd) == -1) {
+ xlog(L_ERROR, "Failed to close %s: %m", newpath);
+ (void)unlink(newpath);
+ state = 0;
+ goto out;
+ }
+
+ if (rename(newpath, path) == -1) {
+ xlog(L_ERROR, "Failed to rename %s -> %s: %m",
+ newpath, path);
+ (void)unlink(newpath);
+ state = 0;
+ goto out;
+ }
+
+ /* Ostensibly, a sync(2) is not needed here because
+ * open(O_CREAT), write(O_SYNC), and rename(2) are
+ * already synchronous with persistent storage, for
+ * any file system we care about. */
+ }
+
+out:
+ free(newpath);
+ free(path);
+ return state;
+}
+
+/**
+ * nsm_update_kernel_state - attempt to post new NSM state to kernel
+ * @state: NSM state number
+ *
+ */
+void
+nsm_update_kernel_state(const int state)
+{
+ ssize_t result;
+ char buf[20];
+ int fd, len;
+
+ fd = open(NSM_KERNEL_STATE_FILE, O_WRONLY);
+ if (fd == -1) {
+ xlog(D_GENERAL, "Failed to open " NSM_KERNEL_STATE_FILE ": %m");
+ return;
+ }
+
+ len = snprintf(buf, sizeof(buf), "%d", state);
+ if (error_check(len, sizeof(buf))) {
+ xlog_warn("Failed to form NSM state number string");
+ return;
+ }
+
+ result = write(fd, buf, strlen(buf));
+ if (exact_error_check(result, strlen(buf)))
+ xlog_warn("Failed to write NSM state number: %m");
+
+ if (close(fd) == -1)
+ xlog(L_ERROR, "Failed to close NSM state file "
+ NSM_KERNEL_STATE_FILE ": %m");
+}
+
+/**
+ * nsm_retire_monitored_hosts - back up all hosts from "sm/" to "sm.bak/"
+ *
+ * Returns the count of host records that were moved.
+ *
+ * Note that if any error occurs during this process, some monitor
+ * records may be left in the "sm" directory.
+ */
+unsigned int
+nsm_retire_monitored_hosts(void)
+{
+ unsigned int count = 0;
+ struct dirent *de;
+ char *path;
+ DIR *dir;
+
+ path = nsm_make_pathname(NSM_MONITOR_DIR);
+ if (path == NULL) {
+ xlog(L_ERROR, "Failed to allocate path for " NSM_MONITOR_DIR);
+ return count;
+ }
+
+ dir = opendir(path);
+ free(path);
+ if (dir == NULL) {
+ xlog_warn("Failed to open " NSM_MONITOR_DIR ": %m");
+ return count;
+ }
+
+ while ((de = readdir(dir)) != NULL) {
+ char *src, *dst;
+
+ if (de->d_type != (unsigned char)DT_REG)
+ continue;
+ if (de->d_name[0] == '.')
+ continue;
+
+ src = nsm_make_record_pathname(NSM_MONITOR_DIR, de->d_name);
+ if (src == NULL) {
+ xlog_warn("Bad monitor file name, skipping");
+ continue;
+ }
+
+ dst = nsm_make_record_pathname(NSM_NOTIFY_DIR, de->d_name);
+ if (dst == NULL) {
+ free(src);
+ xlog_warn("Bad notify file name, skipping");
+ continue;
+ }
+
+ if (rename(src, dst) == -1)
+ xlog_warn("Failed to rename %s -> %s: %m",
+ src, dst);
+ else {
+ xlog(D_GENERAL, "Retired record for mon_name %s",
+ de->d_name);
+ count++;
+ }
+
+ free(dst);
+ free(src);
+ }
+
+ (void)closedir(dir);
+ return count;
+}
+
+/*
+ * Returns the length in bytes of the created record.
+ */
+__attribute_noinline__
+static size_t
+nsm_create_monitor_record(char *buf, const size_t buflen,
+ const struct sockaddr *sap, const struct mon *m)
+{
+ const struct sockaddr_in *sin = (const struct sockaddr_in *)sap;
+ size_t remaining = buflen;
+ int i, len;
+
+ len = snprintf(buf, remaining, "%08x %08x %08x %08x ",
+ (unsigned int)sin->sin_addr.s_addr,
+ (unsigned int)m->mon_id.my_id.my_prog,
+ (unsigned int)m->mon_id.my_id.my_vers,
+ (unsigned int)m->mon_id.my_id.my_proc);
+ if (error_check(len, remaining))
+ return 0;
+ buf += len;
+ remaining -= (size_t)len;
+
+ for (i = 0; i < SM_PRIV_SIZE; i++) {
+ len = snprintf(buf, remaining, "%02x",
+ (unsigned int)(0xff & m->priv[i]));
+ if (error_check(len, remaining))
+ return 0;
+ buf += len;
+ remaining -= (size_t)len;
+ }
+
+ len = snprintf(buf, remaining, " %s %s\n",
+ m->mon_id.mon_name, m->mon_id.my_id.my_name);
+ if (error_check(len, remaining))
+ return 0;
+ remaining -= (size_t)len;
+
+ return buflen - remaining;
+}
+
+/**
+ * nsm_insert_monitored_host - write callback data for one host to disk
+ * @hostname: C string containing a hostname
+ * @sap: sockaddr containing NLM callback address
+ * @mon: SM_MON arguments to save
+ *
+ * Returns true if successful, otherwise false if some error occurs.
+ */
+_Bool
+nsm_insert_monitored_host(const char *hostname, const struct sockaddr *sap,
+ const struct mon *m)
+{
+ static char buf[LINELEN + 1 + SM_MAXSTRLEN + 2];
+ char *path;
+ _Bool result = false;
+ ssize_t len;
+ size_t size;
+ int fd;
+
+ path = nsm_make_record_pathname(NSM_MONITOR_DIR, hostname);
+ if (path == NULL) {
+ xlog(L_ERROR, "Failed to insert: bad monitor hostname '%s'",
+ hostname);
+ return false;
+ }
+
+ size = nsm_create_monitor_record(buf, sizeof(buf), sap, m);
+ if (size == 0) {
+ xlog(L_ERROR, "Failed to insert: record too long");
+ goto out;
+ }
+
+ fd = open(path, O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR);
+ if (fd == -1) {
+ xlog(L_ERROR, "Failed to insert: creating %s: %m", path);
+ goto out;
+ }
+ result = true;
+
+ len = write(fd, buf, size);
+ if (exact_error_check(len, size)) {
+ xlog_warn("Failed to insert: writing %s: %m", path);
+ (void)unlink(path);
+ result = false;
+ }
+
+ if (close(fd) == -1) {
+ xlog(L_ERROR, "Failed to insert: closing %s: %m", path);
+ (void)unlink(path);
+ result = false;
+ }
+
+out:
+ free(path);
+ return result;
+}
+
+__attribute_noinline__
+static _Bool
+nsm_parse_line(char *line, struct sockaddr_in *sin, struct mon *m)
+{
+ unsigned int i, tmp;
+ int count;
+ char *c;
+
+ c = strchr(line, '\n');
+ if (c != NULL)
+ *c = '\0';
+
+ count = sscanf(line, "%8x %8x %8x %8x ",
+ (unsigned int *)&sin->sin_addr.s_addr,
+ (unsigned int *)&m->mon_id.my_id.my_prog,
+ (unsigned int *)&m->mon_id.my_id.my_vers,
+ (unsigned int *)&m->mon_id.my_id.my_proc);
+ if (count != 4)
+ return false;
+
+ c = line + RPCARGSLEN;
+ for (i = 0; i < SM_PRIV_SIZE; i++) {
+ if (sscanf(c, "%2x", &tmp) != 1)
+ return false;
+ m->priv[i] = (char)tmp;
+ c += 2;
+ }
+
+ c++;
+ m->mon_id.mon_name = c;
+ while (*c != '\0' && *c != ' ')
+ c++;
+ if (*c != '\0')
+ *c++ = '\0';
+ while (*c == ' ')
+ c++;
+ m->mon_id.my_id.my_name = c;
+
+ return true;
+}
+
+/*
+ * Stuff a 'struct mon' with callback data, and call @func.
+ *
+ * Returns the count of in-core records created.
+ */
+static unsigned int
+nsm_read_line(const char *hostname, const time_t timestamp, char *line,
+ nsm_populate_t func)
+{
+ struct sockaddr_in sin = {
+ .sin_family = AF_INET,
+ };
+ struct mon m;
+
+ if (!nsm_parse_line(line, &sin, &m))
+ return 0;
+
+ return func(hostname, (struct sockaddr *)(char *)&sin, &m, timestamp);
+}
+
+/*
+ * Given a filename, reads data from a file under NSM_MONITOR_DIR
+ * and invokes @func so caller can populate their in-core
+ * database with this data.
+ */
+static unsigned int
+nsm_load_host(const char *directory, const char *filename, nsm_populate_t func)
+{
+ char buf[LINELEN + 1 + SM_MAXSTRLEN + 2];
+ unsigned int result = 0;
+ struct stat stb;
+ char *path;
+ FILE *f;
+
+ path = nsm_make_record_pathname(directory, filename);
+ if (path == NULL)
+ goto out_err;
+
+ if (stat(path, &stb) == -1) {
+ xlog(L_ERROR, "Failed to stat %s: %m", path);
+ goto out_freepath;
+ }
+
+ f = fopen(path, "r");
+ if (f == NULL) {
+ xlog(L_ERROR, "Failed to open %s: %m", path);
+ goto out_freepath;
+ }
+
+ while (fgets(buf, (int)sizeof(buf), f) != NULL) {
+ buf[sizeof(buf) - 1] = '\0';
+ result += nsm_read_line(filename, stb.st_mtime, buf, func);
+ }
+ if (result == 0)
+ xlog(L_ERROR, "Failed to read monitor data from %s", path);
+
+ (void)fclose(f);
+
+out_freepath:
+ free(path);
+out_err:
+ return result;
+}
+
+static unsigned int
+nsm_load_dir(const char *directory, nsm_populate_t func)
+{
+ unsigned int count = 0;
+ struct dirent *de;
+ char *path;
+ DIR *dir;
+
+ path = nsm_make_pathname(directory);
+ if (path == NULL) {
+ xlog(L_ERROR, "Failed to allocate path for directory %s",
+ directory);
+ return 0;
+ }
+
+ dir = opendir(path);
+ free(path);
+ if (dir == NULL) {
+ xlog(L_ERROR, "Failed to open directory %s: %m",
+ directory);
+ return 0;
+ }
+
+ while ((de = readdir(dir)) != NULL) {
+ if (de->d_type != (unsigned char)DT_REG)
+ continue;
+ if (de->d_name[0] == '.')
+ continue;
+
+ count += nsm_load_host(directory, de->d_name, func);
+ }
+
+ (void)closedir(dir);
+ return count;
+}
+
+/**
+ * nsm_load_monitor_list - load list of hosts to monitor
+ * @func: callback function to create entry for one host
+ *
+ * Returns the count of hosts that were found in the directory.
+ */
+unsigned int
+nsm_load_monitor_list(nsm_populate_t func)
+{
+ return nsm_load_dir(NSM_MONITOR_DIR, func);
+}
+
+/**
+ * nsm_load_notify_list - load list of hosts to notify
+ * @func: callback function to create entry for one host
+ *
+ * Returns the count of hosts that were found in the directory.
+ */
+unsigned int
+nsm_load_notify_list(nsm_populate_t func)
+{
+ return nsm_load_dir(NSM_NOTIFY_DIR, func);
+}
+
+static void
+nsm_delete_host(const char *directory, const char *hostname)
+{
+ char *path;
+
+ path = nsm_make_record_pathname(directory, hostname);
+ if (path == NULL) {
+ xlog(L_ERROR, "Bad filename, not deleting");
+ return;
+ }
+
+ if (unlink(path) == -1)
+ xlog(L_ERROR, "Failed to unlink %s: %m", path);
+
+ free(path);
+}
+
+/**
+ * nsm_delete_monitored_host - delete on-disk record for monitored host
+ * @hostname: '\0'-terminated C string containing hostname of record to delete
+ *
+ */
+void
+nsm_delete_monitored_host(const char *hostname)
+{
+ nsm_delete_host(NSM_MONITOR_DIR, hostname);
+}
+
+/**
+ * nsm_delete_notified_host - delete on-disk host record after notification
+ * @hostname: '\0'-terminated C string containing hostname of record to delete
+ *
+ */
+void
+nsm_delete_notified_host(const char *hostname)
+{
+ nsm_delete_host(NSM_NOTIFY_DIR, hostname);
+}