diff options
Diffstat (limited to 'src/dnsmasq')
| -rw-r--r-- | src/dnsmasq/nm-dnsmasq-manager.c | 395 | ||||
| -rw-r--r-- | src/dnsmasq/nm-dnsmasq-manager.h | 55 | ||||
| -rw-r--r-- | src/dnsmasq/nm-dnsmasq-utils.c | 78 | ||||
| -rw-r--r-- | src/dnsmasq/nm-dnsmasq-utils.h | 31 | ||||
| -rw-r--r-- | src/dnsmasq/tests/test-dnsmasq-utils.c | 99 |
5 files changed, 658 insertions, 0 deletions
diff --git a/src/dnsmasq/nm-dnsmasq-manager.c b/src/dnsmasq/nm-dnsmasq-manager.c new file mode 100644 index 00000000..9b24e69e --- /dev/null +++ b/src/dnsmasq/nm-dnsmasq-manager.c @@ -0,0 +1,395 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* NetworkManager -- Network link manager + * + * This program 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. + * + * This program 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 this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2008 - 2012 Red Hat, Inc. + */ + +#include "nm-default.h" + +#include "nm-dnsmasq-manager.h" + +#include <sys/types.h> +#include <sys/wait.h> +#include <signal.h> +#include <string.h> +#include <unistd.h> +#include <arpa/inet.h> +#include <stdlib.h> + +#include "nm-dnsmasq-utils.h" +#include "nm-utils.h" +#include "NetworkManagerUtils.h" +#include "nm-core-internal.h" + +#define CONFDIR NMCONFDIR "/dnsmasq-shared.d" + +/*****************************************************************************/ + +enum { + STATE_CHANGED, + LAST_SIGNAL, +}; + +static guint signals[LAST_SIGNAL] = { 0 }; + +typedef struct { + char *iface; + char *pidfile; + GPid pid; + guint dm_watch_id; +} NMDnsMasqManagerPrivate; + +struct _NMDnsMasqManager { + GObject parent; + NMDnsMasqManagerPrivate _priv; +}; + +struct _NMDnsMasqManagerClass { + GObjectClass parent; +}; + +G_DEFINE_TYPE (NMDnsMasqManager, nm_dnsmasq_manager, G_TYPE_OBJECT) + +#define NM_DNSMASQ_MANAGER_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMDnsMasqManager, NM_IS_DNSMASQ_MANAGER) + +/*****************************************************************************/ + +#define _NMLOG_DOMAIN LOGD_SHARING +#define _NMLOG(level, ...) __NMLOG_DEFAULT (level, _NMLOG_DOMAIN, "dnsmasq-manager", __VA_ARGS__) + +/*****************************************************************************/ + +typedef struct { + GPtrArray *array; + GStringChunk *chunk; +} NMCmdLine; + +static NMCmdLine * +nm_cmd_line_new (void) +{ + NMCmdLine *cmd; + + cmd = g_slice_new (NMCmdLine); + cmd->array = g_ptr_array_new (); + cmd->chunk = g_string_chunk_new (1024); + + return cmd; +} + +static void +nm_cmd_line_destroy (NMCmdLine *cmd) +{ + g_ptr_array_free (cmd->array, TRUE); + g_string_chunk_free (cmd->chunk); + g_slice_free (NMCmdLine, cmd); +} + +static char * +nm_cmd_line_to_str (NMCmdLine *cmd) +{ + char *str; + + g_ptr_array_add (cmd->array, NULL); + str = g_strjoinv (" ", (gchar **) cmd->array->pdata); + g_ptr_array_remove_index (cmd->array, cmd->array->len - 1); + + return str; +} + +static void +nm_cmd_line_add_string (NMCmdLine *cmd, const char *str) +{ + g_ptr_array_add (cmd->array, g_string_chunk_insert (cmd->chunk, str)); +} + +/*****************************************************************************/ + +static void +dm_watch_cb (GPid pid, gint status, gpointer user_data) +{ + NMDnsMasqManager *manager = NM_DNSMASQ_MANAGER (user_data); + NMDnsMasqManagerPrivate *priv = NM_DNSMASQ_MANAGER_GET_PRIVATE (manager); + guint err; + + if (WIFEXITED (status)) { + err = WEXITSTATUS (status); + if (err != 0) { + _LOGW ("dnsmasq exited with error: %s", + nm_utils_dnsmasq_status_to_string (err, NULL, 0)); + } + } else if (WIFSTOPPED (status)) { + _LOGW ("dnsmasq stopped unexpectedly with signal %d", WSTOPSIG (status)); + } else if (WIFSIGNALED (status)) { + _LOGW ("dnsmasq died with signal %d", WTERMSIG (status)); + } else { + _LOGW ("dnsmasq died from an unknown cause"); + } + + priv->pid = 0; + priv->dm_watch_id = 0; + + g_signal_emit (manager, signals[STATE_CHANGED], 0, NM_DNSMASQ_STATUS_DEAD); +} + +static NMCmdLine * +create_dm_cmd_line (const char *iface, + const NMIP4Config *ip4_config, + const char *pidfile, + GError **error) +{ + NMCmdLine *cmd; + GString *s; + char first[INET_ADDRSTRLEN]; + char last[INET_ADDRSTRLEN]; + char localaddr[INET_ADDRSTRLEN]; + char *error_desc = NULL; + const char *dm_binary; + const NMPlatformIP4Address *listen_address; + + listen_address = nm_ip4_config_get_address (ip4_config, 0); + g_return_val_if_fail (listen_address, NULL); + + dm_binary = nm_utils_find_helper ("dnsmasq", DNSMASQ_PATH, error); + if (!dm_binary) + return NULL; + + /* Create dnsmasq command line */ + cmd = nm_cmd_line_new (); + nm_cmd_line_add_string (cmd, dm_binary); + + if (getenv ("NM_DNSMASQ_DEBUG")) { + nm_cmd_line_add_string (cmd, "--log-dhcp"); + nm_cmd_line_add_string (cmd, "--log-queries"); + } + + /* dnsmasq may read from it's default config file location, which if that + * location is a valid config file, it will combine with the options here + * and cause undesirable side-effects. Like sending bogus IP addresses + * as the gateway or whatever. So tell dnsmasq not to use any config file + * at all. + */ + nm_cmd_line_add_string (cmd, "--conf-file"); + + nm_cmd_line_add_string (cmd, "--no-hosts"); + nm_cmd_line_add_string (cmd, "--keep-in-foreground"); + nm_cmd_line_add_string (cmd, "--bind-interfaces"); + nm_cmd_line_add_string (cmd, "--except-interface=lo"); + nm_cmd_line_add_string (cmd, "--clear-on-reload"); + + /* Use strict order since in the case of VPN connections, the VPN's + * nameservers will be first in resolv.conf, and those need to be tried + * first by dnsmasq to successfully resolve names from the VPN. + */ + nm_cmd_line_add_string (cmd, "--strict-order"); + + s = g_string_new ("--listen-address="); + nm_utils_inet4_ntop (listen_address->address, localaddr); + g_string_append (s, localaddr); + nm_cmd_line_add_string (cmd, s->str); + g_string_free (s, TRUE); + + if (!nm_dnsmasq_utils_get_range (listen_address, first, last, &error_desc)) { + g_set_error_literal (error, + NM_MANAGER_ERROR, + NM_MANAGER_ERROR_FAILED, + error_desc); + _LOGW ("failed to find DHCP address ranges: %s", error_desc); + g_free (error_desc); + nm_cmd_line_destroy (cmd); + return NULL; + } + + s = g_string_new ("--dhcp-range="); + g_string_append_printf (s, "%s,%s,60m", first, last); + nm_cmd_line_add_string (cmd, s->str); + g_string_free (s, TRUE); + + if (!nm_ip4_config_get_never_default (ip4_config)) { + s = g_string_new ("--dhcp-option=option:router,"); + g_string_append (s, localaddr); + nm_cmd_line_add_string (cmd, s->str); + g_string_free (s, TRUE); + } + + nm_cmd_line_add_string (cmd, "--dhcp-lease-max=50"); + + s = g_string_new ("--pid-file="); + g_string_append (s, pidfile); + nm_cmd_line_add_string (cmd, s->str); + g_string_free (s, TRUE); + + /* dnsmasq exits if the conf dir is not present */ + if (g_file_test (CONFDIR, G_FILE_TEST_IS_DIR)) + nm_cmd_line_add_string (cmd, "--conf-dir=" CONFDIR); + + return cmd; +} + +static void +kill_existing_by_pidfile (const char *pidfile) +{ + char *contents = NULL; + pid_t pid; + char proc_path[250]; + char *cmdline_contents = NULL; + guint64 start_time; + const char *exe; + + if ( !pidfile + || !g_file_get_contents (pidfile, &contents, NULL, NULL)) + return; + + pid = _nm_utils_ascii_str_to_int64 (contents, 10, 1, G_MAXUINT64, 0); + if (pid == 0) + goto out; + + start_time = nm_utils_get_start_time_for_pid (pid, NULL, NULL); + if (start_time == 0) + goto out; + + nm_sprintf_buf (proc_path, "/proc/%lld/cmdline", (long long) pid); + if (!g_file_get_contents (proc_path, &cmdline_contents, NULL, NULL)) + goto out; + + exe = strrchr (cmdline_contents, '/'); + if ( (exe && strcmp (&exe[1], "dnsmasq") == 0) + || (strcmp (cmdline_contents, DNSMASQ_PATH) == 0)) { + nm_utils_kill_process_sync (pid, start_time, SIGKILL, LOGD_SHARING, + "dnsmasq", 0, 0, 500); + } + +out: + unlink (pidfile); + g_free (cmdline_contents); + g_free (contents); +} + +gboolean +nm_dnsmasq_manager_start (NMDnsMasqManager *manager, + NMIP4Config *ip4_config, + GError **error) +{ + NMDnsMasqManagerPrivate *priv; + NMCmdLine *dm_cmd; + gs_free char *cmd_str = NULL; + + g_return_val_if_fail (NM_IS_DNSMASQ_MANAGER (manager), FALSE); + g_return_val_if_fail (!error || !*error, FALSE); + g_return_val_if_fail (nm_ip4_config_get_num_addresses (ip4_config) > 0, FALSE); + + priv = NM_DNSMASQ_MANAGER_GET_PRIVATE (manager); + + kill_existing_by_pidfile (priv->pidfile); + + dm_cmd = create_dm_cmd_line (priv->iface, ip4_config, priv->pidfile, error); + if (!dm_cmd) + return FALSE; + + g_ptr_array_add (dm_cmd->array, NULL); + + _LOGI ("starting dnsmasq..."); + _LOGD ("command line: %s", (cmd_str = nm_cmd_line_to_str (dm_cmd))); + + priv->pid = 0; + if (!g_spawn_async (NULL, (char **) dm_cmd->array->pdata, NULL, + G_SPAWN_DO_NOT_REAP_CHILD, + nm_utils_setpgid, NULL, + &priv->pid, error)) { + goto out; + } + + _LOGD ("dnsmasq started with pid %d", priv->pid); + + priv->dm_watch_id = g_child_watch_add (priv->pid, (GChildWatchFunc) dm_watch_cb, manager); + + out: + if (dm_cmd) + nm_cmd_line_destroy (dm_cmd); + + return priv->pid > 0; +} + +void +nm_dnsmasq_manager_stop (NMDnsMasqManager *manager) +{ + NMDnsMasqManagerPrivate *priv; + + g_return_if_fail (NM_IS_DNSMASQ_MANAGER (manager)); + + priv = NM_DNSMASQ_MANAGER_GET_PRIVATE (manager); + + nm_clear_g_source (&priv->dm_watch_id); + + if (priv->pid) { + nm_utils_kill_child_async (priv->pid, SIGTERM, LOGD_SHARING, "dnsmasq", 2000, NULL, NULL); + priv->pid = 0; + } + + unlink (priv->pidfile); +} + +/*****************************************************************************/ + +static void +nm_dnsmasq_manager_init (NMDnsMasqManager *manager) +{ +} + +NMDnsMasqManager * +nm_dnsmasq_manager_new (const char *iface) +{ + NMDnsMasqManager *manager; + NMDnsMasqManagerPrivate *priv; + + manager = (NMDnsMasqManager *) g_object_new (NM_TYPE_DNSMASQ_MANAGER, NULL); + + priv = NM_DNSMASQ_MANAGER_GET_PRIVATE (manager); + priv->iface = g_strdup (iface); + priv->pidfile = g_strdup_printf (RUNSTATEDIR "/nm-dnsmasq-%s.pid", iface); + + return manager; +} + +static void +finalize (GObject *object) +{ + NMDnsMasqManagerPrivate *priv = NM_DNSMASQ_MANAGER_GET_PRIVATE ((NMDnsMasqManager *) object); + + nm_dnsmasq_manager_stop (NM_DNSMASQ_MANAGER (object)); + + g_free (priv->iface); + g_free (priv->pidfile); + + G_OBJECT_CLASS (nm_dnsmasq_manager_parent_class)->finalize (object); +} + +static void +nm_dnsmasq_manager_class_init (NMDnsMasqManagerClass *manager_class) +{ + GObjectClass *object_class = G_OBJECT_CLASS (manager_class); + + object_class->finalize = finalize; + + signals[STATE_CHANGED] = + g_signal_new (NM_DNS_MASQ_MANAGER_STATE_CHANGED, + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_FIRST, + 0, NULL, NULL, + g_cclosure_marshal_VOID__UINT, + G_TYPE_NONE, 1, + G_TYPE_UINT); +} diff --git a/src/dnsmasq/nm-dnsmasq-manager.h b/src/dnsmasq/nm-dnsmasq-manager.h new file mode 100644 index 00000000..a0ad295c --- /dev/null +++ b/src/dnsmasq/nm-dnsmasq-manager.h @@ -0,0 +1,55 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* NetworkManager -- Network link manager + * + * This program 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. + * + * This program 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 this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2008 Red Hat, Inc. + */ + +#ifndef __NETWORKMANAGER_DNSMASQ_MANAGER_H__ +#define __NETWORKMANAGER_DNSMASQ_MANAGER_H__ + +#include "nm-ip4-config.h" + +#define NM_TYPE_DNSMASQ_MANAGER (nm_dnsmasq_manager_get_type ()) +#define NM_DNSMASQ_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_DNSMASQ_MANAGER, NMDnsMasqManager)) +#define NM_DNSMASQ_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), NM_TYPE_DNSMASQ_MANAGER, NMDnsMasqManagerClass)) +#define NM_IS_DNSMASQ_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), NM_TYPE_DNSMASQ_MANAGER)) +#define NM_IS_DNSMASQ_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), NM_TYPE_DNSMASQ_MANAGER)) +#define NM_DNSMASQ_MANAGER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), NM_TYPE_DNSMASQ_MANAGER, NMDnsMasqManagerClass)) + +/* signals */ +#define NM_DNS_MASQ_MANAGER_STATE_CHANGED "state-changed" + +typedef enum { + NM_DNSMASQ_STATUS_UNKNOWN, + NM_DNSMASQ_STATUS_DEAD, + NM_DNSMASQ_STATUS_RUNNING, +} NMDnsMasqStatus; + +typedef struct _NMDnsMasqManager NMDnsMasqManager; +typedef struct _NMDnsMasqManagerClass NMDnsMasqManagerClass; + +GType nm_dnsmasq_manager_get_type (void); + +NMDnsMasqManager *nm_dnsmasq_manager_new (const char *iface); + +gboolean nm_dnsmasq_manager_start (NMDnsMasqManager *manager, + NMIP4Config *ip4_config, + GError **error); + +void nm_dnsmasq_manager_stop (NMDnsMasqManager *manager); + +#endif /* __NETWORKMANAGER_DNSMASQ_MANAGER_H__ */ diff --git a/src/dnsmasq/nm-dnsmasq-utils.c b/src/dnsmasq/nm-dnsmasq-utils.c new file mode 100644 index 00000000..e4f4324b --- /dev/null +++ b/src/dnsmasq/nm-dnsmasq-utils.c @@ -0,0 +1,78 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* NetworkManager -- Network link manager + * + * This program 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. + * + * This program 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 this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2013 Red Hat, Inc. + */ + +#include "nm-default.h" + +#include <string.h> +#include <arpa/inet.h> + +#include "nm-dnsmasq-utils.h" +#include "platform/nm-platform.h" +#include "nm-utils.h" + +gboolean +nm_dnsmasq_utils_get_range (const NMPlatformIP4Address *addr, + char *out_first, + char *out_last, + char **out_error_desc) +{ + guint32 host = addr->address; + guint8 prefix = addr->plen; + guint32 netmask = nm_utils_ip4_prefix_to_netmask (prefix); + guint32 first, last, reserved; + + g_return_val_if_fail (out_first != NULL, FALSE); + g_return_val_if_fail (out_last != NULL, FALSE); + + if (prefix > 30) { + if (out_error_desc) + *out_error_desc = g_strdup_printf ("Address prefix %d is too small for DHCP.", prefix); + return FALSE; + } + + /* Find the first available address *after* the local machine's IP */ + first = (host & netmask) + htonl (1); + + /* Shortcut: allow a max of 253 addresses; the - htonl(1) here is to assure + * that we don't set 'last' to the broadcast address of the network. */ + if (prefix < 24) + last = (host | ~nm_utils_ip4_prefix_to_netmask (24)) - htonl (1); + else + last = (host | ~netmask) - htonl(1); + + /* Figure out which range (either above the host address or below it) + * has more addresses. Reserve some addresses for static IPs. + */ + if (ntohl (host) - ntohl (first) > ntohl (last) - ntohl (host)) { + /* Range below the host's IP address */ + reserved = (guint32) ((ntohl (host) - ntohl (first)) / 10); + last = host - htonl (MIN (reserved, 8)) - htonl (1); + } else { + /* Range above host's IP address */ + reserved = (guint32) ((ntohl (last) - ntohl (host)) / 10); + first = host + htonl (MIN (reserved, 8)) + htonl (1); + } + + nm_utils_inet4_ntop (first, out_first); + nm_utils_inet4_ntop (last, out_last); + + return TRUE; +} + diff --git a/src/dnsmasq/nm-dnsmasq-utils.h b/src/dnsmasq/nm-dnsmasq-utils.h new file mode 100644 index 00000000..54b90309 --- /dev/null +++ b/src/dnsmasq/nm-dnsmasq-utils.h @@ -0,0 +1,31 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* NetworkManager -- Network link manager + * + * This program 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. + * + * This program 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 this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2013 Red Hat, Inc. + */ + +#ifndef __NETWORKMANAGER_DNSMASQ_UTILS_H__ +#define __NETWORKMANAGER_DNSMASQ_UTILS_H__ + +#include "platform/nm-platform.h" + +gboolean nm_dnsmasq_utils_get_range (const NMPlatformIP4Address *addr, + char *out_first, + char *out_last, + char **out_error_desc); + +#endif /* __NETWORKMANAGER_DNSMASQ_UTILS_H__ */ diff --git a/src/dnsmasq/tests/test-dnsmasq-utils.c b/src/dnsmasq/tests/test-dnsmasq-utils.c new file mode 100644 index 00000000..00ff6610 --- /dev/null +++ b/src/dnsmasq/tests/test-dnsmasq-utils.c @@ -0,0 +1,99 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* + * This program 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, or (at your option) + * any later version. + * + * This program 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 this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2013 Red Hat, Inc. + * + */ + +#include "nm-default.h" + +#include <arpa/inet.h> + +#include "dnsmasq/nm-dnsmasq-utils.h" + +#include "nm-test-utils-core.h" + +static void +test_address_ranges (void) +{ + NMPlatformIP4Address addr; + char first[INET_ADDRSTRLEN]; + char last[INET_ADDRSTRLEN]; + char *error_desc = NULL; + + addr = *nmtst_platform_ip4_address ("192.168.0.1", NULL, 24); + g_assert (nm_dnsmasq_utils_get_range (&addr, first, last, &error_desc)); + g_assert (error_desc == NULL); + g_assert_cmpstr (first, ==, "192.168.0.10"); + g_assert_cmpstr (last, ==, "192.168.0.254"); + + addr = *nmtst_platform_ip4_address ("192.168.0.99", NULL, 24); + g_assert (nm_dnsmasq_utils_get_range (&addr, first, last, &error_desc)); + g_assert (error_desc == NULL); + g_assert_cmpstr (first, ==, "192.168.0.108"); + g_assert_cmpstr (last, ==, "192.168.0.254"); + + addr = *nmtst_platform_ip4_address ("192.168.0.254", NULL, 24); + g_assert (nm_dnsmasq_utils_get_range (&addr, first, last, &error_desc)); + g_assert (error_desc == NULL); + g_assert_cmpstr (first, ==, "192.168.0.1"); + g_assert_cmpstr (last, ==, "192.168.0.245"); + + /* Smaller networks */ + addr = *nmtst_platform_ip4_address ("1.2.3.1", NULL, 30); + g_assert (nm_dnsmasq_utils_get_range (&addr, first, last, &error_desc)); + g_assert (error_desc == NULL); + g_assert_cmpstr (first, ==, "1.2.3.2"); + g_assert_cmpstr (last, ==, "1.2.3.2"); + + addr = *nmtst_platform_ip4_address ("1.2.3.1", NULL, 29); + g_assert (nm_dnsmasq_utils_get_range (&addr, first, last, &error_desc)); + g_assert (error_desc == NULL); + g_assert_cmpstr (first, ==, "1.2.3.2"); + g_assert_cmpstr (last, ==, "1.2.3.6"); + + addr = *nmtst_platform_ip4_address ("1.2.3.1", NULL, 28); + g_assert (nm_dnsmasq_utils_get_range (&addr, first, last, &error_desc)); + g_assert (error_desc == NULL); + g_assert_cmpstr (first, ==, "1.2.3.3"); + g_assert_cmpstr (last, ==, "1.2.3.14"); + + addr = *nmtst_platform_ip4_address ("1.2.3.1", NULL, 26); + g_assert (nm_dnsmasq_utils_get_range (&addr, first, last, &error_desc)); + g_assert (error_desc == NULL); + g_assert_cmpstr (first, ==, "1.2.3.8"); + g_assert_cmpstr (last, ==, "1.2.3.62"); + + addr = *nmtst_platform_ip4_address ("1.2.3.1", NULL, 31); + g_assert (nm_dnsmasq_utils_get_range (&addr, first, last, &error_desc) == FALSE); + g_assert (error_desc); + g_free (error_desc); +} + +/*****************************************************************************/ + +NMTST_DEFINE (); + +int +main (int argc, char **argv) +{ + nmtst_init_assert_logging (&argc, &argv, "INFO", "DEFAULT"); + + g_test_add_func ("/dnsmasq/address-ranges", test_address_ranges); + + return g_test_run (); +} + |