11:41 a.m.
Rename drv_initscripts driver backend to indicate this being a Linux only set of
routines.
---
src/Makefile.am | 2 +-
src/drv_initscripts.c | 1097 -------------------------------------------------
src/drv_linux.c | 1097 +++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 1098 insertions(+), 1098 deletions(-)
delete mode 100644 src/drv_initscripts.c
create mode 100644 src/drv_linux.c
diff --git a/src/Makefile.am b/src/Makefile.am
index 9d8a3d7..0c16a22 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -17,7 +17,7 @@ EXTRA_DIST = netcf_public.syms \
netcf_private.syms
if NETCF_DRIVER_INITSCRIPTS
-DRIVER_SOURCES = drv_initscripts.c dutil.h dutil.c \
+DRIVER_SOURCES = drv_linux.c dutil.h dutil.c \
dutil_linux.h dutil_linux.c
endif
diff --git a/src/drv_initscripts.c b/src/drv_initscripts.c
deleted file mode 100644
index b2d96cb..0000000
--- a/src/drv_initscripts.c
+++ /dev/null
@@ -1,1097 +0,0 @@
-/*
- * drv_initscripts.c: the initscripts backend for netcf
- *
- * Copyright (C) 2009 Red Hat Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Author: David Lutterkort <lutter(a)redhat.com>
- */
-
-#include <config.h>
-#include <internal.h>
-
-#include <augeas.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdbool.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/stat.h>
-
-#include "safe-alloc.h"
-#include "ref.h"
-#include "list.h"
-#include "dutil.h"
-#include "dutil_linux.h"
-
-#include <libxml/parser.h>
-#include <libxml/relaxng.h>
-#include <libxml/tree.h>
-#include <libxslt/xslt.h>
-#include <libxslt/xsltInternals.h>
-#include <libxslt/transform.h>
-#include <libxslt/xsltutils.h>
-
-#include <libexslt/exslt.h>
-
-static const char *const network_scripts_path =
- "/files/etc/sysconfig/network-scripts";
-
-static const char *const ifcfg_path =
- "/files/etc/sysconfig/network-scripts/*";
-
-/* Augeas should only load the files we are interested in */
-static const struct augeas_pv augeas_xfm_common_pv[] = {
- /* Ifcfg files */
- { "/augeas/load/Ifcfg/lens", "Sysconfig.lns" },
- { "/augeas/load/Ifcfg/incl",
- "/etc/sysconfig/network-scripts/ifcfg-*" },
- { "/augeas/load/Ifcfg/excl[1]", "*~" },
- { "/augeas/load/Ifcfg/excl[2]", "*.bak" },
- { "/augeas/load/Ifcfg/excl[3]", "*.orig" },
- { "/augeas/load/Ifcfg/excl[4]", "*.rpmnew" },
- { "/augeas/load/Ifcfg/excl[5]", "*.rpmorig" },
- { "/augeas/load/Ifcfg/excl[6]", "*.rpmsave" },
- { "/augeas/load/Ifcfg/excl[7]", "*.augnew" },
- { "/augeas/load/Ifcfg/excl[8]", "*.augsave" },
- /* modprobe config */
- { "/augeas/load/Modprobe/lens", "Modprobe.lns" },
- { "/augeas/load/Modprobe/incl[1]", "/etc/modprobe.d/*" },
- { "/augeas/load/Modprobe/incl[2]", "/etc/modprobe.conf" },
- { "/augeas/load/Modprobe/excl[1]", "*.augnew" },
- { "/augeas/load/Modprobe/excl[2]", "*.augsave" },
- { "/augeas/load/Modprobe/excl[3]", "*.rpmsave" },
- { "/augeas/load/Modprobe/excl[4]", "*.rpmnew" },
- { "/augeas/load/Modprobe/excl[5]", "*~" },
- /* sysfs (choice entries from /class/net) */
- { "/augeas/load/Sysfs/lens", "Netcf.id" },
- { "/augeas/load/Sysfs/incl", "/sys/class/net/*/address" }
-};
-
-static const struct augeas_xfm_table augeas_xfm_common =
- { .size = ARRAY_CARDINALITY(augeas_xfm_common_pv),
- .pv = augeas_xfm_common_pv };
-
-/* Entries in a ifcfg file that tell us that the interface
- * is not a toplevel interface
- */
-static const char *const subif_paths[] = {
- "MASTER", "BRIDGE"
-};
-
-static int is_slave(struct netcf *ncf, const char *intf) {
- for (int s = 0; s < ARRAY_CARDINALITY(subif_paths); s++) {
- int r;
- r = aug_fmt_match(ncf, NULL, "%s/%s", intf, subif_paths[s]);
- if (r != 0)
- return r;
- }
- return 0;
-}
-
-static bool has_ifcfg_file(struct netcf *ncf, const char *name) {
- int nmatches;
-
- nmatches = aug_fmt_match(ncf, NULL,
- "%s[ DEVICE = '%s'"
- " or BRIDGE = '%s'"
- " or MASTER = '%s'"
- " or MASTER = ../*[BRIDGE = '%s']/DEVICE
]/DEVICE",
- ifcfg_path, name, name, name, name);
- return nmatches > 0;
-}
-
-static int cmpstrp(const void *p1, const void *p2) {
- const char *s1 = * (const char **)p1;
- const char *s2 = * (const char **)p2;
- return strcmp(s1, s2);
-}
-
-/* Find the path to the ifcfg file that has the configuration for the
- * interface with MAC address MAC.
- */
-static char *find_ifcfg_path_by_hwaddr(struct netcf *ncf, const char *mac) {
- static const char *const hwaddr_str = "/HWADDR";
-
- int nhwaddr = 0, r;
- char **hwaddr = NULL;
- struct augeas *aug = NULL;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- // It would be nice if Augeas provided a way to do case-insensitive
- // matching. For now, we just write it out
- nhwaddr = aug_fmt_match(ncf, &hwaddr, "%s%s", ifcfg_path, hwaddr_str);
- ERR_COND_BAIL(nhwaddr < 0, ncf, EOTHER);
-
- /* Sort because need_config will return the last match in case
- * of multiple matches */
- qsort(hwaddr, nhwaddr, sizeof(*hwaddr), cmpstrp);
- int match = -1;
- for (int i=0; i < nhwaddr; i++) {
- const char *addr;
- r = aug_get(aug, hwaddr[i], &addr);
- ERR_COND_BAIL(r != 1, ncf, EOTHER);
- if (STRCASEEQ(addr, mac))
- match = i;
- }
- if (match != -1) {
- char *path = hwaddr[match];
- hwaddr[match] = NULL;
- path[strlen(path) - strlen(hwaddr_str)] = '\0';
- free_matches(nhwaddr, &hwaddr);
- return path;
- }
- error:
- free_matches(nhwaddr, &hwaddr);
- return NULL;
-}
-
-/* Find the path to the ifcfg file that has the configuration for the
- * interface by checking for an entry 'DEVICE=NAME'
- */
-static char *find_ifcfg_path_by_device(struct netcf *ncf, const char *name) {
- struct augeas *aug = NULL;
- int ndevs = 0;
- char **devs = NULL;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- ndevs = aug_fmt_match(ncf, &devs, "%s[DEVICE = '%s']",
- ifcfg_path, name);
- ERR_COND_BAIL(ndevs < 0, ncf, EOTHER);
-
- if (ndevs == 0)
- return NULL;
-
- qsort(devs, ndevs, sizeof(*devs), cmpstrp);
-
- char *path = devs[ndevs - 1];
- devs[ndevs - 1] = NULL;
-
- free_matches(ndevs, &devs);
-
- return path;
- error:
- free_matches(ndevs, &devs);
- return NULL;
-}
-
-/* Find the path to the ifcfg file that has the configuration for
- * the device NAME. The logic follows the need_config function
- * in /etc/sysconfig/network-scripts/network-functions
- */
-static char *find_ifcfg_path(struct netcf *ncf, const char *name) {
- struct augeas *aug = NULL;
- char *path = NULL;
- const char *mac = NULL;
- int r, nmatches;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- /* if ifcfg-NAME exists, use that */
- r = xasprintf(&path, "%s/ifcfg-%s", network_scripts_path, name);
- ERR_NOMEM(r < 0, ncf);
-
- nmatches = aug_match(aug, path, NULL);
- ERR_COND_BAIL(nmatches < 0, ncf, EOTHER);
-
- if (nmatches == 1)
- return path;
-
- FREE(path);
-
- /* Now find the config by MAC, matching on HWADDR */
- r = aug_get_mac(ncf, name, &mac);
- ERR_COND_BAIL(r < 0, ncf, EOTHER);
- if (r > 0) {
- path = find_ifcfg_path_by_hwaddr(ncf, mac);
- ERR_BAIL(ncf);
- if (path != NULL)
- return path;
- }
-
- path = find_ifcfg_path_by_device(ncf, name);
- ERR_BAIL(ncf);
-
- return path;
- error:
- FREE(path);
- return NULL;
-}
-
-/* Given NDEVS path to DEVICE entries which may contain duplicate devices,
- * produce a list of canonical paths to the interfaces in INTF and return
- * the number of entries. Return -1 on error
- */
-static int uniq_ifcfg_paths(struct netcf *ncf,
- int ndevs, char **devs,
- char ***intf) {
- struct augeas *aug;
- int r;
- int ndevnames = 0;
- const char **devnames = NULL;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- /* List unique device names */
- r = ALLOC_N(devnames, ndevs);
- ERR_NOMEM(r < 0, ncf);
-
- for (int i=0; i < ndevs; i++) {
- const char *name = NULL;
- r = aug_get(aug, devs[i], &name);
- ERR_COND_BAIL(r != 1, ncf, EOTHER);
- int exists = 0;
- for (int j = 0; j < ndevnames; j++)
- if (STREQ(name, devnames[j])) {
- exists = 1;
- break;
- }
- if (!exists)
- devnames[ndevnames++] = name;
- }
- qsort(devnames, ndevnames, sizeof(*devnames), cmpstrp);
-
- /* Find canonical config for each device name */
- r = ALLOC_N(*intf, ndevnames);
- ERR_NOMEM(r < 0, ncf);
- for (int i= 0; i < ndevnames; i++) {
- (*intf)[i] = find_ifcfg_path(ncf, devnames[i]);
- ERR_BAIL(ncf);
- }
-
- FREE(devnames);
- return ndevnames;
-
- error:
- FREE(devnames);
- free_matches(ndevnames, intf);
- return -1;
-}
-
-/* List all configured network devices; returns the number of devices or -1
- * on error. On success, the path to the config file for each interface
- * is returned in INTF
- */
-static int list_ifcfg_paths(struct netcf *ncf, char ***intf) {
- int result = 0, ndevs;
- char **devs = NULL;
-
- ndevs = aug_fmt_match(ncf, &devs, "%s/DEVICE", ifcfg_path);
- ERR_COND_BAIL(ndevs < 0, ncf, EOTHER);
-
- result = uniq_ifcfg_paths(ncf, ndevs, devs, intf);
- ERR_BAIL(ncf);
-
- free_matches(ndevs, &devs);
- return result;
-
- error:
- free_matches(ndevs, &devs);
- return -1;
-}
-
-static int list_interfaces(struct netcf *ncf, char ***intf) {
- int nint = 0, result = 0;
- struct augeas *aug = NULL;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- /* Look in augeas for all interfaces */
- nint = list_ifcfg_paths(ncf, intf);
- ERR_BAIL(ncf);
- result = nint;
-
- /* Filter out the interfaces that are slaves/subordinate */
- for (int i = 0; i < result;) {
- if (is_slave(ncf, (*intf)[i])) {
- FREE((*intf)[i]);
- memmove(*intf + i, *intf + i + 1,
- (nint - (i + 1))*sizeof((*intf)[0]));
- result -= 1;
- } else {
- i += 1;
- }
- }
- return result;
- error:
- free_matches(nint, intf);
- return -1;
-}
-
-int drv_init(struct netcf *ncf) {
- int r;
- struct stat stats;
-
- if (ALLOC(ncf->driver) < 0)
- return -1;
-
- ncf->driver->ioctl_fd = -1;
-
- r = add_augeas_xfm_table(ncf, &augeas_xfm_common);
- if (r < 0)
- goto error;
-
- if (stat(ncf->root, &stats) != 0 || !S_ISDIR(stats.st_mode)) {
- report_error(ncf, NETCF_EFILE,
- "invalid root '%s' is not a directory",
ncf->root);
- return -1;
- }
-
- // FIXME: Check for errors
- xsltInit();
- exsltStrRegister();
- ncf->driver->get = parse_stylesheet(ncf, "initscripts-get.xsl");
- ncf->driver->put = parse_stylesheet(ncf, "initscripts-put.xsl");
- ncf->driver->rng = rng_parse(ncf, "interface.rng");
- ERR_BAIL(ncf);
-
- /* open a socket for interface ioctls */
- ncf->driver->ioctl_fd = init_ioctl_fd(ncf);
- if (ncf->driver->ioctl_fd < 0)
- goto error;
- if (netlink_init(ncf) < 0)
- goto error;
- return 0;
-
- error:
- drv_close(ncf);
- return -1;
-}
-
-void drv_close(struct netcf *ncf) {
- if (ncf == NULL || ncf->driver == NULL)
- return;
- xsltFreeStylesheet(ncf->driver->get);
- xsltFreeStylesheet(ncf->driver->put);
- xmlRelaxNGFree(ncf->driver->rng);
- netlink_close(ncf);
- if (ncf->driver->ioctl_fd >= 0)
- close(ncf->driver->ioctl_fd);
- aug_close(ncf->driver->augeas);
- FREE(ncf->driver->augeas_xfm_tables);
- FREE(ncf->driver);
-}
-
-void drv_entry(struct netcf *ncf) {
- ncf->driver->load_augeas = 1;
-}
-
-static int list_interface_ids(struct netcf *ncf,
- int maxnames, char **names,
- unsigned int flags,
- const char *id_attr) {
- struct augeas *aug = NULL;
- int nint = 0, nmatches = 0, nqualified = 0, result = 0, r;
- char **intf = NULL, **matches = NULL;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
- nint = list_interfaces(ncf, &intf);
- ERR_BAIL(ncf);
- if (!names) {
- maxnames = nint; /* if not returning list, ignore maxnames too */
- }
- for (result = 0; (result < nint) && (nqualified < maxnames); result++)
{
- nmatches = aug_fmt_match(ncf, &matches,
- "%s/%s", intf[result], id_attr);
- ERR_BAIL(ncf);
- if (nmatches > 0) {
- const char *name;
- int is_qualified = ((flags & (NETCF_IFACE_ACTIVE|NETCF_IFACE_INACTIVE))
- == (NETCF_IFACE_ACTIVE|NETCF_IFACE_INACTIVE));
-
- r = aug_get(aug, matches[nmatches-1], &name);
- ERR_COND_BAIL(r < 0, ncf, EOTHER);
-
- if (!is_qualified) {
- int is_active = if_is_active(ncf, name);
- if ((is_active && (flags & NETCF_IFACE_ACTIVE))
- || ((!is_active) && (flags & NETCF_IFACE_INACTIVE))) {
-
- is_qualified = 1;
- }
- }
-
- if (is_qualified) {
- if (names) {
- names[nqualified] = strdup(name);
- ERR_NOMEM(names[nqualified] == NULL, ncf);
- }
- nqualified++;
- }
- }
- free_matches(nmatches, &matches);
- }
- free_matches(nint, &intf);
- return nqualified;
- error:
- free_matches(nmatches, &matches);
- free_matches(nint, &intf);
- return -1;
-}
-
-int drv_list_interfaces(struct netcf *ncf, int maxnames, char **names,
- unsigned int flags) {
- return list_interface_ids(ncf, maxnames, names, flags, "DEVICE");
-}
-
-int drv_num_of_interfaces(struct netcf *ncf, unsigned int flags) {
- return list_interface_ids(ncf, 0, NULL, flags, "DEVICE");
-}
-
-struct netcf_if *drv_lookup_by_name(struct netcf *ncf, const char *name) {
- struct netcf_if *nif = NULL;
- char *pathx = NULL;
- char *name_dup = NULL;
- struct augeas *aug;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- pathx = find_ifcfg_path(ncf, name);
- ERR_BAIL(ncf);
-
- if (pathx == NULL || is_slave(ncf, pathx))
- goto done;
-
- name_dup = strdup(name);
- ERR_NOMEM(name_dup == NULL, ncf);
-
- nif = make_netcf_if(ncf, name_dup);
- ERR_BAIL(ncf);
- goto done;
-
- error:
- unref(nif, netcf_if);
- FREE(name_dup);
- done:
- FREE(pathx);
- return nif;
-}
-
-/* Get an XML desription of the interfaces (just paths, really) in INTF.
- * The format is a very simple representation of the Augeas tree (see
- * xml/augeas.rng)
- */
-static xmlDocPtr aug_get_xml(struct netcf *ncf, int nint, char **intf) {
- struct augeas *aug;
- xmlDocPtr result = NULL;
- xmlNodePtr root = NULL, tree = NULL;
- char **matches = NULL;
- int nmatches, r;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- result = xmlNewDoc(BAD_CAST "1.0");
- root = xmlNewNode(NULL, BAD_CAST "forest");
- xmlDocSetRootElement(result, root);
-
- for (int i=0; i < nint; i++) {
- tree = xmlNewChild(root, NULL, BAD_CAST "tree", NULL);
- xmlNewProp(tree, BAD_CAST "path", BAD_CAST intf[i]);
- nmatches = aug_fmt_match(ncf, &matches, "%s/%s", intf[i],
"*");
- ERR_COND_BAIL(nint < 0, ncf, EOTHER);
- for (int j = 0; j < nmatches; j++) {
- xmlNodePtr node = xmlNewChild(tree, NULL, BAD_CAST "node", NULL);
- const char *value;
- xmlNewProp(node, BAD_CAST "label",
- BAD_CAST matches[j] + strlen(intf[i]) + 1);
- r = aug_get(aug, matches[j], &value);
- ERR_COND_BAIL(r < 0, ncf, EOTHER);
- xmlNewProp(node, BAD_CAST "value", BAD_CAST value);
- }
- free_matches(nmatches, &matches);
- }
-
- return result;
-
- error:
- free_matches(nmatches, &matches);
- xmlFreeDoc(result);
- return NULL;
-}
-
-/* Write the XML doc in the simple Augeas format into the Augeas tree */
-static int aug_put_xml(struct netcf *ncf, xmlDocPtr xml) {
- xmlNodePtr forest;
- char *path = NULL, *lpath = NULL, *label = NULL, *value = NULL;
- struct augeas *aug = NULL;
- int result = -1;
- int r;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- forest = xmlDocGetRootElement(xml);
- ERR_THROW(forest == NULL, ncf, EINTERNAL, "missing root element");
- ERR_THROW(! xmlStrEqual(forest->name, BAD_CAST "forest"), ncf,
- EINTERNAL, "expected root node labeled 'forest', not
'%s'",
- forest->name);
- list_for_each(tree, forest->children) {
- ERR_THROW(! xmlStrEqual(tree->name, BAD_CAST "tree"), ncf,
- EINTERNAL, "expected node labeled 'tree', not
'%s'",
- tree->name);
- path = xml_prop(tree, "path");
- int toplevel = 1;
- /* This is a little drastic, since it clears out the file entirely */
- r = aug_rm(aug, path);
- ERR_THROW(r < 0, ncf, EINTERNAL, "aug_rm of '%s' failed",
path);
- list_for_each(node, tree->children) {
- label = xml_prop(node, "label");
- value = xml_prop(node, "value");
- /* We should mark the toplevel interface from the XSLT */
- if (STREQ(label, "BRIDGE") || STREQ(label, "MASTER")) {
- toplevel = 0;
- }
- r = xasprintf(&lpath, "%s/%s", path, label);
- ERR_NOMEM(r < 0, ncf);
-
- r = aug_set(aug, lpath, value);
- ERR_THROW(r < 0, ncf, EOTHER,
- "aug_set of '%s' failed", lpath);
- FREE(lpath);
- xmlFree(label);
- xmlFree(value);
- label = value = NULL;
- }
- xmlFree(path);
- path = NULL;
- }
- result = 0;
- error:
- xmlFree(label);
- xmlFree(value);
- xmlFree(path);
- FREE(lpath);
- return result;
-}
-
-/* given a netcf_if, get the config for an interface in the simple
- * Augeas format
- */
-static xmlDocPtr aug_get_xml_for_nif(struct netcf_if *nif) {
- struct netcf *ncf;
- char **devs = NULL, **intf = NULL;
- xmlDocPtr aug_xml = NULL;
- int ndevs = 0, nint = 0;
-
- ncf = nif->ncf;
- ndevs = aug_fmt_match(ncf, &devs,
- "%s[ DEVICE = '%s' or BRIDGE = '%s' or MASTER =
'%s'"
- " or MASTER = ../*[BRIDGE = '%s']/DEVICE ]/DEVICE",
- ifcfg_path, nif->name, nif->name, nif->name, nif->name);
- ERR_BAIL(ncf);
-
- nint = uniq_ifcfg_paths(ncf, ndevs, devs, &intf);
- ERR_BAIL(ncf);
-
- aug_xml = aug_get_xml(ncf, nint, intf);
-
- error:
- free_matches(ndevs, &devs);
- free_matches(nint, &intf);
- return aug_xml;
-}
-
-/* return the current static configuration (as saved on disk) */
-char *drv_xml_desc(struct netcf_if *nif) {
- char *result = NULL;
- struct netcf *ncf;
- xmlDocPtr aug_xml = NULL;
-
- ncf = nif->ncf;
- aug_xml = aug_get_xml_for_nif(nif);
- ERR_BAIL(ncf);
-
- result = apply_stylesheet_to_string(ncf, ncf->driver->put, aug_xml);
-
- error:
- xmlFreeDoc(aug_xml);
- return result;
-}
-
-/* return the current live configuration state - a combination of
- * drv_xml_desc + results of querying the interface directly */
-
-char *drv_xml_state(struct netcf_if *nif) {
- char *result = NULL;
- int r, result_len;
- struct netcf *ncf;
- xmlDocPtr ncf_xml = NULL;
- xmlNodePtr root;
-
- ncf = nif->ncf;
-
- /* start out with an empty tree rather than the config tree. Just
- * put in the interface node and its name
- */
- ncf_xml = xmlNewDoc(BAD_CAST "1.0");
- ERR_NOMEM(ncf_xml == NULL, ncf);
- root = xmlNewNode(NULL, BAD_CAST "interface");
- ERR_NOMEM(root == NULL, ncf);
- xmlDocSetRootElement(ncf_xml, root);
-
- /* add all info we can gather from the kernel/sysfs/procfs */
- add_state_to_xml_doc(nif, ncf_xml);
- ERR_BAIL(ncf);
-
- r = xsltSaveResultToString((xmlChar **)&result, &result_len,
- ncf_xml, ncf->driver->put);
- ERR_NOMEM(r < 0, ncf);
-
- done:
- xmlFreeDoc(ncf_xml);
- return result;
- error:
- FREE(result);
- result = 0;
- goto done;
-}
-
-/* Report various status info about the interface as bits in
- * "flags". Returns 0 on success, -1 on failure
- */
-int drv_if_status(struct netcf_if *nif, unsigned int *flags) {
- int is_active;
-
- ERR_THROW(flags == NULL, nif->ncf, EOTHER, "NULL pointer for flags in
ncf_if_status");
- *flags = 0;
- is_active = if_is_active(nif->ncf, nif->name);
- if (is_active)
- *flags |= NETCF_IFACE_ACTIVE;
- else
- *flags |= NETCF_IFACE_INACTIVE;
- return 0;
-error:
- return -1;
-}
-
-/* Get the content of /interface/@name. Result must be freed with xmlFree()
- *
- * The name on VLAN interfaces is optional; if there is no
- * /interface/@name, construct a name for the VLAN interface and set
- * /interface/@name in NCF_XML to it. This way, other code can assume we
- * always have a name on the interface.
- */
-static char *device_name_from_xml(struct netcf *ncf, xmlDocPtr ncf_xml) {
- xmlXPathContextPtr context = NULL;
- xmlXPathObjectPtr obj = NULL;
- char *result = NULL;
-
- context = xmlXPathNewContext(ncf_xml);
- ERR_NOMEM(context == NULL, ncf);
-
- obj = xmlXPathEvalExpression(BAD_CAST "string(/interface/@name)", context);
- ERR_NOMEM(obj == NULL, ncf);
- assert(obj->type == XPATH_STRING);
-
- if (xmlStrlen(obj->stringval) == 0) {
- xmlXPathFreeObject(obj);
- obj = xmlXPathEvalExpression(BAD_CAST
- "concat(/interface/vlan/interface/@name, '.',
/interface/vlan/@tag)",
- context);
- ERR_NOMEM(obj == NULL, ncf);
- ERR_COND_BAIL(xmlStrlen(obj->stringval) == 0, ncf, EINTERNAL);
- assert(obj->type == XPATH_STRING);
-
- xmlNodePtr iface;
- iface = xmlDocGetRootElement(ncf_xml);
- ERR_COND_BAIL(iface == NULL, ncf, EINTERNAL);
- xmlSetProp(iface, BAD_CAST "name", BAD_CAST result);
- }
-
- result = (char *) xmlStrdup(obj->stringval);
- error:
- xmlXPathFreeObject(obj);
- xmlXPathFreeContext(context);
- return result;
-}
-
-/* The device NAME is a bond if it is mentioned as the MASTER in sopme
- * other devices config file
- */
-static bool is_bond(struct netcf *ncf, const char *name) {
- int nmatches = 0;
-
- nmatches = aug_fmt_match(ncf, NULL,
- "%s[ MASTER = '%s']", ifcfg_path, name);
- return nmatches > 0;
-}
-
-/* The device NAME is a bridge if it has an entry TYPE=Bridge */
-static bool is_bridge(struct netcf *ncf, const char *name) {
- int nmatches = 0;
-
- nmatches = aug_fmt_match(ncf, NULL,
- "%s[ DEVICE = '%s' and TYPE =
'Bridge']",
- ifcfg_path, name);
- return nmatches > 0;
-}
-
-static int bridge_slaves(struct netcf *ncf, const char *name, char ***slaves) {
- struct augeas *aug = NULL;
- int r, nslaves = 0;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- nslaves = aug_fmt_match(ncf, slaves,
- "%s[ BRIDGE = '%s' ]/DEVICE", ifcfg_path,
name);
- ERR_BAIL(ncf);
- for (int i=0; i < nslaves; i++) {
- char *p = (*slaves)[i];
- const char *dev;
- r = aug_get(aug, p, &dev);
- ERR_COND_BAIL(r < 0, ncf, EOTHER);
-
- (*slaves)[i] = strdup(dev);
- free(p);
- ERR_NOMEM(slaves[i] == NULL, ncf);
- }
- return nslaves;
- error:
- free_matches(nslaves, slaves);
- return -1;
-}
-
-
-/* For an interface NAME, remove the ifcfg-* files for that interface and
- * all its slaves. */
-static void rm_interface(struct netcf *ncf, const char *name) {
- int r;
- char *path = NULL;
- struct augeas *aug = NULL;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- /* The last or clause catches slaves of a bond that are enslaved to
- * a bridge NAME */
- r = xasprintf(&path,
- "%s[ DEVICE = '%s' or BRIDGE = '%s' or MASTER =
'%s' "
- " or MASTER = ../*[BRIDGE = '%s']/DEVICE ]",
- ifcfg_path, name, name, name, name);
- ERR_NOMEM(r < 0, ncf);
-
- r = aug_rm(aug, path);
- ERR_COND_BAIL(r < 0, ncf, EOTHER);
- error:
- FREE(path);
-}
-
-/* Remove all interfaces and their slaves mentioned in NCF_XML. We need to
- * remove interfaces one by one when we define an interface, since what
- * will become a subinterface may not be related to the new toplevel
- * interface, and calling RM_INTERFACE on the toplevel interface is
- * therefore not enough.
- */
-static void rm_all_interfaces(struct netcf *ncf, xmlDocPtr ncf_xml) {
- xmlXPathContextPtr context = NULL;
- xmlXPathObjectPtr obj = NULL;
-
- context = xmlXPathNewContext(ncf_xml);
- ERR_NOMEM(context == NULL, ncf);
-
- obj = xmlXPathEvalExpression(BAD_CAST
- "//interface[count(parent::vlan) = 0]",
- context);
- ERR_NOMEM(obj == NULL, ncf);
-
-
- xmlNodeSetPtr ns = obj->nodesetval;
- for (int i=0; i < ns->nodeNr; i++) {
- xmlChar *name = xmlGetProp(ns->nodeTab[i], BAD_CAST "name");
- ERR_NOMEM(name == NULL, ncf);
- rm_interface(ncf, (char *) name);
- xmlFree(name);
- ERR_BAIL(ncf);
- }
- error:
- xmlXPathFreeObject(obj);
- xmlXPathFreeContext(context);
-}
-
-/* Dig through interface NAME and all its subinterfaces for bonds
- * and either add aliases in modprobe.conf for it (ALIAS == true), or
- * remove such aliases (ALIAS == false)
- */
-static void bond_setup(struct netcf *ncf, const char *name, bool alias) {
- void (*setup)(struct netcf *ncf, const char *name);
- int nslaves = 0;
- char **slaves = NULL;
-
- if (alias)
- setup = modprobed_alias_bond;
- else
- setup = modprobed_unalias_bond;
-
- if (is_bond(ncf, name)) {
- setup(ncf, name);
- ERR_BAIL(ncf);
- }
-
- if (is_bridge(ncf, name)) {
- nslaves = bridge_slaves(ncf, name, &slaves);
- ERR_BAIL(ncf);
- for (int i=0; i < nslaves; i++) {
- if (is_bond(ncf, slaves[i])) {
- setup(ncf, slaves[i]);
- ERR_BAIL(ncf);
- }
- }
- }
-
- error:
- free_matches(nslaves, &slaves);
- return;
-}
-
-struct netcf_if *drv_define(struct netcf *ncf, const char *xml_str) {
- xmlDocPtr ncf_xml = NULL, aug_xml = NULL;
- char *name = NULL;
- struct netcf_if *result = NULL;
- int r;
- struct augeas *aug = get_augeas(ncf);
-
- ncf_xml = parse_xml(ncf, xml_str);
- ERR_BAIL(ncf);
-
- rng_validate(ncf, ncf_xml);
- ERR_BAIL(ncf);
-
- name = device_name_from_xml(ncf, ncf_xml);
- ERR_COND_BAIL(name == NULL, ncf, EINTERNAL);
-
- rm_all_interfaces(ncf, ncf_xml);
- ERR_BAIL(ncf);
-
- aug_xml = apply_stylesheet(ncf, ncf->driver->get, ncf_xml);
- ERR_BAIL(ncf);
-
- aug_put_xml(ncf, aug_xml);
- ERR_BAIL(ncf);
-
- bond_setup(ncf, name, true);
- ERR_BAIL(ncf);
-
- r = aug_save(aug);
- if (r < 0 && NCF_DEBUG(ncf)) {
- fprintf(stderr, "Errors from aug_save:\n");
- aug_print(aug, stderr, "/augeas//error");
- }
- ERR_THROW(r < 0, ncf, EOTHER, "aug_save failed");
-
- result = make_netcf_if(ncf, name);
- ERR_BAIL(ncf);
-
- done:
- xmlFreeDoc(ncf_xml);
- xmlFreeDoc(aug_xml);
- return result;
- error:
- unref(result, netcf_if);
- goto done;
-}
-
-int drv_undefine(struct netcf_if *nif) {
- struct augeas *aug = NULL;
- struct netcf *ncf = nif->ncf;
- int r;
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- bond_setup(ncf, nif->name, false);
- ERR_BAIL(ncf);
-
- rm_interface(ncf, nif->name);
- ERR_BAIL(ncf);
-
- r = aug_save(aug);
- ERR_COND_BAIL(r < 0, ncf, EOTHER);
-
- return 0;
- error:
- return -1;
-}
-
-int drv_lookup_by_mac_string(struct netcf *ncf, const char *mac,
- int maxifaces, struct netcf_if **ifaces)
-{
- struct augeas *aug = NULL;
- char *path = NULL, *ifcfg = NULL;
- const char **names = NULL;
- int nmatches = 0;
- char **matches = NULL;
- int r;
- int result = -1;
-
- MEMZERO(ifaces, maxifaces);
-
- aug = get_augeas(ncf);
- ERR_BAIL(ncf);
-
- nmatches = aug_match_mac(ncf, mac, &matches);
- ERR_BAIL(ncf);
- if (nmatches == 0) {
- result = 0;
- goto done;
- }
-
- r = ALLOC_N(names, nmatches);
- ERR_NOMEM(r < 0, ncf);
-
- int cnt = 0;
- for (int i = 0; i < nmatches; i++) {
- if (!has_ifcfg_file(ncf, matches[i]))
- continue;
- r = xasprintf(&ifcfg, "%s[DEVICE = '%s']", ifcfg_path,
matches[i]);
- ERR_NOMEM(r < 0, ncf);
-
- if (! is_slave(ncf, ifcfg))
- names[cnt++] = matches[i];
- FREE(ifcfg);
- }
- for (int i=0; i < cnt && i < maxifaces; i++) {
- char *name = strdup(names[i]);
- ERR_NOMEM(name == NULL, ncf);
- ifaces[i] = make_netcf_if(ncf, name);
- ERR_BAIL(ncf);
- }
- result = cnt;
- goto done;
-
- error:
- for (int i=0; i < maxifaces; i++)
- unref(ifaces[i], netcf_if);
- done:
- free(names);
- free(ifcfg);
- free(path);
- free_matches(nmatches, &matches);
- return result;
-}
-
-const char *drv_mac_string(struct netcf_if *nif) {
- struct netcf *ncf = nif->ncf;
- const char *mac;
- char *path = NULL;
- int r;
-
- r = aug_get_mac(ncf, nif->name, &mac);
- ERR_THROW(r < 0, ncf, EOTHER, "could not lookup MAC of %s",
nif->name);
-
- if (mac != NULL) {
- if (nif->mac == NULL || STRNEQ(nif->mac, mac)) {
- FREE(nif->mac);
- nif->mac = strdup(mac);
- ERR_NOMEM(nif->mac == NULL, ncf);
- }
- } else {
- FREE(nif->mac);
- }
- /* fallthrough intentional */
- error:
- FREE(path);
- return nif->mac;
-}
-
-/*
- * Bringing interfaces up/down
- */
-
-int drv_if_up(struct netcf_if *nif) {
- static const char *const ifup = "ifup";
- struct netcf *ncf = nif->ncf;
- char **slaves = NULL;
- int nslaves = 0;
- int result = -1;
-
- if (is_bridge(ncf, nif->name)) {
- /* Bring up bridge slaves before the bridge */
- nslaves = bridge_slaves(ncf, nif->name, &slaves);
- ERR_BAIL(ncf);
-
- for (int i=0; i < nslaves; i++) {
- run1(ncf, ifup, slaves[i]);
- ERR_BAIL(ncf);
- }
- }
- run1(ncf, ifup, nif->name);
- ERR_BAIL(ncf);
- result = 0;
- error:
- free_matches(nslaves, &slaves);
- return result;
-}
-
-int drv_if_down(struct netcf_if *nif) {
- static const char *const ifdown = "ifdown";
- struct netcf *ncf = nif->ncf;
- char **slaves = NULL;
- int nslaves = 0;
- int result = -1;
-
- run1(ncf, ifdown, nif->name);
- ERR_BAIL(ncf);
- if (is_bridge(ncf, nif->name)) {
- /* Bring up bridge slaves after the bridge */
- nslaves = bridge_slaves(ncf, nif->name, &slaves);
- ERR_BAIL(ncf);
-
- for (int i=0; i < nslaves; i++) {
- run1(ncf, ifdown, slaves[i]);
- ERR_BAIL(ncf);
- }
- }
- result = 0;
- error:
- free_matches(nslaves, &slaves);
- return result;
-}
-
-/*
- * Test interface
- */
-int drv_get_aug(struct netcf *ncf, const char *ncf_xml, char **aug_xml) {
- /* Use utility implementation */
- return dutil_get_aug(ncf, ncf_xml, aug_xml);
-}
-
-/* Transform the Augeas XML AUG_XML into interface XML NCF_XML */
-int drv_put_aug(struct netcf *ncf, const char *aug_xml, char **ncf_xml) {
- /* Use utility implementation */
- return dutil_put_aug(ncf, aug_xml, ncf_xml);
-}
-
-/*
- * Local variables:
- * indent-tabs-mode: nil
- * c-indent-level: 4
- * c-basic-offset: 4
- * tab-width: 4
- * End:
- */
-/* vim: set ts=4 sw=4 et: */
diff --git a/src/drv_linux.c b/src/drv_linux.c
new file mode 100644
index 0000000..b2d96cb
--- /dev/null
+++ b/src/drv_linux.c
@@ -0,0 +1,1097 @@
+/*
+ * drv_initscripts.c: the initscripts backend for netcf
+ *
+ * Copyright (C) 2009 Red Hat Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: David Lutterkort <lutter(a)redhat.com>
+ */
+
+#include <config.h>
+#include <internal.h>
+
+#include <augeas.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+#include "safe-alloc.h"
+#include "ref.h"
+#include "list.h"
+#include "dutil.h"
+#include "dutil_linux.h"
+
+#include <libxml/parser.h>
+#include <libxml/relaxng.h>
+#include <libxml/tree.h>
+#include <libxslt/xslt.h>
+#include <libxslt/xsltInternals.h>
+#include <libxslt/transform.h>
+#include <libxslt/xsltutils.h>
+
+#include <libexslt/exslt.h>
+
+static const char *const network_scripts_path =
+ "/files/etc/sysconfig/network-scripts";
+
+static const char *const ifcfg_path =
+ "/files/etc/sysconfig/network-scripts/*";
+
+/* Augeas should only load the files we are interested in */
+static const struct augeas_pv augeas_xfm_common_pv[] = {
+ /* Ifcfg files */
+ { "/augeas/load/Ifcfg/lens", "Sysconfig.lns" },
+ { "/augeas/load/Ifcfg/incl",
+ "/etc/sysconfig/network-scripts/ifcfg-*" },
+ { "/augeas/load/Ifcfg/excl[1]", "*~" },
+ { "/augeas/load/Ifcfg/excl[2]", "*.bak" },
+ { "/augeas/load/Ifcfg/excl[3]", "*.orig" },
+ { "/augeas/load/Ifcfg/excl[4]", "*.rpmnew" },
+ { "/augeas/load/Ifcfg/excl[5]", "*.rpmorig" },
+ { "/augeas/load/Ifcfg/excl[6]", "*.rpmsave" },
+ { "/augeas/load/Ifcfg/excl[7]", "*.augnew" },
+ { "/augeas/load/Ifcfg/excl[8]", "*.augsave" },
+ /* modprobe config */
+ { "/augeas/load/Modprobe/lens", "Modprobe.lns" },
+ { "/augeas/load/Modprobe/incl[1]", "/etc/modprobe.d/*" },
+ { "/augeas/load/Modprobe/incl[2]", "/etc/modprobe.conf" },
+ { "/augeas/load/Modprobe/excl[1]", "*.augnew" },
+ { "/augeas/load/Modprobe/excl[2]", "*.augsave" },
+ { "/augeas/load/Modprobe/excl[3]", "*.rpmsave" },
+ { "/augeas/load/Modprobe/excl[4]", "*.rpmnew" },
+ { "/augeas/load/Modprobe/excl[5]", "*~" },
+ /* sysfs (choice entries from /class/net) */
+ { "/augeas/load/Sysfs/lens", "Netcf.id" },
+ { "/augeas/load/Sysfs/incl", "/sys/class/net/*/address" }
+};
+
+static const struct augeas_xfm_table augeas_xfm_common =
+ { .size = ARRAY_CARDINALITY(augeas_xfm_common_pv),
+ .pv = augeas_xfm_common_pv };
+
+/* Entries in a ifcfg file that tell us that the interface
+ * is not a toplevel interface
+ */
+static const char *const subif_paths[] = {
+ "MASTER", "BRIDGE"
+};
+
+static int is_slave(struct netcf *ncf, const char *intf) {
+ for (int s = 0; s < ARRAY_CARDINALITY(subif_paths); s++) {
+ int r;
+ r = aug_fmt_match(ncf, NULL, "%s/%s", intf, subif_paths[s]);
+ if (r != 0)
+ return r;
+ }
+ return 0;
+}
+
+static bool has_ifcfg_file(struct netcf *ncf, const char *name) {
+ int nmatches;
+
+ nmatches = aug_fmt_match(ncf, NULL,
+ "%s[ DEVICE = '%s'"
+ " or BRIDGE = '%s'"
+ " or MASTER = '%s'"
+ " or MASTER = ../*[BRIDGE = '%s']/DEVICE
]/DEVICE",
+ ifcfg_path, name, name, name, name);
+ return nmatches > 0;
+}
+
+static int cmpstrp(const void *p1, const void *p2) {
+ const char *s1 = * (const char **)p1;
+ const char *s2 = * (const char **)p2;
+ return strcmp(s1, s2);
+}
+
+/* Find the path to the ifcfg file that has the configuration for the
+ * interface with MAC address MAC.
+ */
+static char *find_ifcfg_path_by_hwaddr(struct netcf *ncf, const char *mac) {
+ static const char *const hwaddr_str = "/HWADDR";
+
+ int nhwaddr = 0, r;
+ char **hwaddr = NULL;
+ struct augeas *aug = NULL;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ // It would be nice if Augeas provided a way to do case-insensitive
+ // matching. For now, we just write it out
+ nhwaddr = aug_fmt_match(ncf, &hwaddr, "%s%s", ifcfg_path, hwaddr_str);
+ ERR_COND_BAIL(nhwaddr < 0, ncf, EOTHER);
+
+ /* Sort because need_config will return the last match in case
+ * of multiple matches */
+ qsort(hwaddr, nhwaddr, sizeof(*hwaddr), cmpstrp);
+ int match = -1;
+ for (int i=0; i < nhwaddr; i++) {
+ const char *addr;
+ r = aug_get(aug, hwaddr[i], &addr);
+ ERR_COND_BAIL(r != 1, ncf, EOTHER);
+ if (STRCASEEQ(addr, mac))
+ match = i;
+ }
+ if (match != -1) {
+ char *path = hwaddr[match];
+ hwaddr[match] = NULL;
+ path[strlen(path) - strlen(hwaddr_str)] = '\0';
+ free_matches(nhwaddr, &hwaddr);
+ return path;
+ }
+ error:
+ free_matches(nhwaddr, &hwaddr);
+ return NULL;
+}
+
+/* Find the path to the ifcfg file that has the configuration for the
+ * interface by checking for an entry 'DEVICE=NAME'
+ */
+static char *find_ifcfg_path_by_device(struct netcf *ncf, const char *name) {
+ struct augeas *aug = NULL;
+ int ndevs = 0;
+ char **devs = NULL;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ ndevs = aug_fmt_match(ncf, &devs, "%s[DEVICE = '%s']",
+ ifcfg_path, name);
+ ERR_COND_BAIL(ndevs < 0, ncf, EOTHER);
+
+ if (ndevs == 0)
+ return NULL;
+
+ qsort(devs, ndevs, sizeof(*devs), cmpstrp);
+
+ char *path = devs[ndevs - 1];
+ devs[ndevs - 1] = NULL;
+
+ free_matches(ndevs, &devs);
+
+ return path;
+ error:
+ free_matches(ndevs, &devs);
+ return NULL;
+}
+
+/* Find the path to the ifcfg file that has the configuration for
+ * the device NAME. The logic follows the need_config function
+ * in /etc/sysconfig/network-scripts/network-functions
+ */
+static char *find_ifcfg_path(struct netcf *ncf, const char *name) {
+ struct augeas *aug = NULL;
+ char *path = NULL;
+ const char *mac = NULL;
+ int r, nmatches;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ /* if ifcfg-NAME exists, use that */
+ r = xasprintf(&path, "%s/ifcfg-%s", network_scripts_path, name);
+ ERR_NOMEM(r < 0, ncf);
+
+ nmatches = aug_match(aug, path, NULL);
+ ERR_COND_BAIL(nmatches < 0, ncf, EOTHER);
+
+ if (nmatches == 1)
+ return path;
+
+ FREE(path);
+
+ /* Now find the config by MAC, matching on HWADDR */
+ r = aug_get_mac(ncf, name, &mac);
+ ERR_COND_BAIL(r < 0, ncf, EOTHER);
+ if (r > 0) {
+ path = find_ifcfg_path_by_hwaddr(ncf, mac);
+ ERR_BAIL(ncf);
+ if (path != NULL)
+ return path;
+ }
+
+ path = find_ifcfg_path_by_device(ncf, name);
+ ERR_BAIL(ncf);
+
+ return path;
+ error:
+ FREE(path);
+ return NULL;
+}
+
+/* Given NDEVS path to DEVICE entries which may contain duplicate devices,
+ * produce a list of canonical paths to the interfaces in INTF and return
+ * the number of entries. Return -1 on error
+ */
+static int uniq_ifcfg_paths(struct netcf *ncf,
+ int ndevs, char **devs,
+ char ***intf) {
+ struct augeas *aug;
+ int r;
+ int ndevnames = 0;
+ const char **devnames = NULL;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ /* List unique device names */
+ r = ALLOC_N(devnames, ndevs);
+ ERR_NOMEM(r < 0, ncf);
+
+ for (int i=0; i < ndevs; i++) {
+ const char *name = NULL;
+ r = aug_get(aug, devs[i], &name);
+ ERR_COND_BAIL(r != 1, ncf, EOTHER);
+ int exists = 0;
+ for (int j = 0; j < ndevnames; j++)
+ if (STREQ(name, devnames[j])) {
+ exists = 1;
+ break;
+ }
+ if (!exists)
+ devnames[ndevnames++] = name;
+ }
+ qsort(devnames, ndevnames, sizeof(*devnames), cmpstrp);
+
+ /* Find canonical config for each device name */
+ r = ALLOC_N(*intf, ndevnames);
+ ERR_NOMEM(r < 0, ncf);
+ for (int i= 0; i < ndevnames; i++) {
+ (*intf)[i] = find_ifcfg_path(ncf, devnames[i]);
+ ERR_BAIL(ncf);
+ }
+
+ FREE(devnames);
+ return ndevnames;
+
+ error:
+ FREE(devnames);
+ free_matches(ndevnames, intf);
+ return -1;
+}
+
+/* List all configured network devices; returns the number of devices or -1
+ * on error. On success, the path to the config file for each interface
+ * is returned in INTF
+ */
+static int list_ifcfg_paths(struct netcf *ncf, char ***intf) {
+ int result = 0, ndevs;
+ char **devs = NULL;
+
+ ndevs = aug_fmt_match(ncf, &devs, "%s/DEVICE", ifcfg_path);
+ ERR_COND_BAIL(ndevs < 0, ncf, EOTHER);
+
+ result = uniq_ifcfg_paths(ncf, ndevs, devs, intf);
+ ERR_BAIL(ncf);
+
+ free_matches(ndevs, &devs);
+ return result;
+
+ error:
+ free_matches(ndevs, &devs);
+ return -1;
+}
+
+static int list_interfaces(struct netcf *ncf, char ***intf) {
+ int nint = 0, result = 0;
+ struct augeas *aug = NULL;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ /* Look in augeas for all interfaces */
+ nint = list_ifcfg_paths(ncf, intf);
+ ERR_BAIL(ncf);
+ result = nint;
+
+ /* Filter out the interfaces that are slaves/subordinate */
+ for (int i = 0; i < result;) {
+ if (is_slave(ncf, (*intf)[i])) {
+ FREE((*intf)[i]);
+ memmove(*intf + i, *intf + i + 1,
+ (nint - (i + 1))*sizeof((*intf)[0]));
+ result -= 1;
+ } else {
+ i += 1;
+ }
+ }
+ return result;
+ error:
+ free_matches(nint, intf);
+ return -1;
+}
+
+int drv_init(struct netcf *ncf) {
+ int r;
+ struct stat stats;
+
+ if (ALLOC(ncf->driver) < 0)
+ return -1;
+
+ ncf->driver->ioctl_fd = -1;
+
+ r = add_augeas_xfm_table(ncf, &augeas_xfm_common);
+ if (r < 0)
+ goto error;
+
+ if (stat(ncf->root, &stats) != 0 || !S_ISDIR(stats.st_mode)) {
+ report_error(ncf, NETCF_EFILE,
+ "invalid root '%s' is not a directory",
ncf->root);
+ return -1;
+ }
+
+ // FIXME: Check for errors
+ xsltInit();
+ exsltStrRegister();
+ ncf->driver->get = parse_stylesheet(ncf, "initscripts-get.xsl");
+ ncf->driver->put = parse_stylesheet(ncf, "initscripts-put.xsl");
+ ncf->driver->rng = rng_parse(ncf, "interface.rng");
+ ERR_BAIL(ncf);
+
+ /* open a socket for interface ioctls */
+ ncf->driver->ioctl_fd = init_ioctl_fd(ncf);
+ if (ncf->driver->ioctl_fd < 0)
+ goto error;
+ if (netlink_init(ncf) < 0)
+ goto error;
+ return 0;
+
+ error:
+ drv_close(ncf);
+ return -1;
+}
+
+void drv_close(struct netcf *ncf) {
+ if (ncf == NULL || ncf->driver == NULL)
+ return;
+ xsltFreeStylesheet(ncf->driver->get);
+ xsltFreeStylesheet(ncf->driver->put);
+ xmlRelaxNGFree(ncf->driver->rng);
+ netlink_close(ncf);
+ if (ncf->driver->ioctl_fd >= 0)
+ close(ncf->driver->ioctl_fd);
+ aug_close(ncf->driver->augeas);
+ FREE(ncf->driver->augeas_xfm_tables);
+ FREE(ncf->driver);
+}
+
+void drv_entry(struct netcf *ncf) {
+ ncf->driver->load_augeas = 1;
+}
+
+static int list_interface_ids(struct netcf *ncf,
+ int maxnames, char **names,
+ unsigned int flags,
+ const char *id_attr) {
+ struct augeas *aug = NULL;
+ int nint = 0, nmatches = 0, nqualified = 0, result = 0, r;
+ char **intf = NULL, **matches = NULL;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+ nint = list_interfaces(ncf, &intf);
+ ERR_BAIL(ncf);
+ if (!names) {
+ maxnames = nint; /* if not returning list, ignore maxnames too */
+ }
+ for (result = 0; (result < nint) && (nqualified < maxnames); result++)
{
+ nmatches = aug_fmt_match(ncf, &matches,
+ "%s/%s", intf[result], id_attr);
+ ERR_BAIL(ncf);
+ if (nmatches > 0) {
+ const char *name;
+ int is_qualified = ((flags & (NETCF_IFACE_ACTIVE|NETCF_IFACE_INACTIVE))
+ == (NETCF_IFACE_ACTIVE|NETCF_IFACE_INACTIVE));
+
+ r = aug_get(aug, matches[nmatches-1], &name);
+ ERR_COND_BAIL(r < 0, ncf, EOTHER);
+
+ if (!is_qualified) {
+ int is_active = if_is_active(ncf, name);
+ if ((is_active && (flags & NETCF_IFACE_ACTIVE))
+ || ((!is_active) && (flags & NETCF_IFACE_INACTIVE))) {
+
+ is_qualified = 1;
+ }
+ }
+
+ if (is_qualified) {
+ if (names) {
+ names[nqualified] = strdup(name);
+ ERR_NOMEM(names[nqualified] == NULL, ncf);
+ }
+ nqualified++;
+ }
+ }
+ free_matches(nmatches, &matches);
+ }
+ free_matches(nint, &intf);
+ return nqualified;
+ error:
+ free_matches(nmatches, &matches);
+ free_matches(nint, &intf);
+ return -1;
+}
+
+int drv_list_interfaces(struct netcf *ncf, int maxnames, char **names,
+ unsigned int flags) {
+ return list_interface_ids(ncf, maxnames, names, flags, "DEVICE");
+}
+
+int drv_num_of_interfaces(struct netcf *ncf, unsigned int flags) {
+ return list_interface_ids(ncf, 0, NULL, flags, "DEVICE");
+}
+
+struct netcf_if *drv_lookup_by_name(struct netcf *ncf, const char *name) {
+ struct netcf_if *nif = NULL;
+ char *pathx = NULL;
+ char *name_dup = NULL;
+ struct augeas *aug;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ pathx = find_ifcfg_path(ncf, name);
+ ERR_BAIL(ncf);
+
+ if (pathx == NULL || is_slave(ncf, pathx))
+ goto done;
+
+ name_dup = strdup(name);
+ ERR_NOMEM(name_dup == NULL, ncf);
+
+ nif = make_netcf_if(ncf, name_dup);
+ ERR_BAIL(ncf);
+ goto done;
+
+ error:
+ unref(nif, netcf_if);
+ FREE(name_dup);
+ done:
+ FREE(pathx);
+ return nif;
+}
+
+/* Get an XML desription of the interfaces (just paths, really) in INTF.
+ * The format is a very simple representation of the Augeas tree (see
+ * xml/augeas.rng)
+ */
+static xmlDocPtr aug_get_xml(struct netcf *ncf, int nint, char **intf) {
+ struct augeas *aug;
+ xmlDocPtr result = NULL;
+ xmlNodePtr root = NULL, tree = NULL;
+ char **matches = NULL;
+ int nmatches, r;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ result = xmlNewDoc(BAD_CAST "1.0");
+ root = xmlNewNode(NULL, BAD_CAST "forest");
+ xmlDocSetRootElement(result, root);
+
+ for (int i=0; i < nint; i++) {
+ tree = xmlNewChild(root, NULL, BAD_CAST "tree", NULL);
+ xmlNewProp(tree, BAD_CAST "path", BAD_CAST intf[i]);
+ nmatches = aug_fmt_match(ncf, &matches, "%s/%s", intf[i],
"*");
+ ERR_COND_BAIL(nint < 0, ncf, EOTHER);
+ for (int j = 0; j < nmatches; j++) {
+ xmlNodePtr node = xmlNewChild(tree, NULL, BAD_CAST "node", NULL);
+ const char *value;
+ xmlNewProp(node, BAD_CAST "label",
+ BAD_CAST matches[j] + strlen(intf[i]) + 1);
+ r = aug_get(aug, matches[j], &value);
+ ERR_COND_BAIL(r < 0, ncf, EOTHER);
+ xmlNewProp(node, BAD_CAST "value", BAD_CAST value);
+ }
+ free_matches(nmatches, &matches);
+ }
+
+ return result;
+
+ error:
+ free_matches(nmatches, &matches);
+ xmlFreeDoc(result);
+ return NULL;
+}
+
+/* Write the XML doc in the simple Augeas format into the Augeas tree */
+static int aug_put_xml(struct netcf *ncf, xmlDocPtr xml) {
+ xmlNodePtr forest;
+ char *path = NULL, *lpath = NULL, *label = NULL, *value = NULL;
+ struct augeas *aug = NULL;
+ int result = -1;
+ int r;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ forest = xmlDocGetRootElement(xml);
+ ERR_THROW(forest == NULL, ncf, EINTERNAL, "missing root element");
+ ERR_THROW(! xmlStrEqual(forest->name, BAD_CAST "forest"), ncf,
+ EINTERNAL, "expected root node labeled 'forest', not
'%s'",
+ forest->name);
+ list_for_each(tree, forest->children) {
+ ERR_THROW(! xmlStrEqual(tree->name, BAD_CAST "tree"), ncf,
+ EINTERNAL, "expected node labeled 'tree', not
'%s'",
+ tree->name);
+ path = xml_prop(tree, "path");
+ int toplevel = 1;
+ /* This is a little drastic, since it clears out the file entirely */
+ r = aug_rm(aug, path);
+ ERR_THROW(r < 0, ncf, EINTERNAL, "aug_rm of '%s' failed",
path);
+ list_for_each(node, tree->children) {
+ label = xml_prop(node, "label");
+ value = xml_prop(node, "value");
+ /* We should mark the toplevel interface from the XSLT */
+ if (STREQ(label, "BRIDGE") || STREQ(label, "MASTER")) {
+ toplevel = 0;
+ }
+ r = xasprintf(&lpath, "%s/%s", path, label);
+ ERR_NOMEM(r < 0, ncf);
+
+ r = aug_set(aug, lpath, value);
+ ERR_THROW(r < 0, ncf, EOTHER,
+ "aug_set of '%s' failed", lpath);
+ FREE(lpath);
+ xmlFree(label);
+ xmlFree(value);
+ label = value = NULL;
+ }
+ xmlFree(path);
+ path = NULL;
+ }
+ result = 0;
+ error:
+ xmlFree(label);
+ xmlFree(value);
+ xmlFree(path);
+ FREE(lpath);
+ return result;
+}
+
+/* given a netcf_if, get the config for an interface in the simple
+ * Augeas format
+ */
+static xmlDocPtr aug_get_xml_for_nif(struct netcf_if *nif) {
+ struct netcf *ncf;
+ char **devs = NULL, **intf = NULL;
+ xmlDocPtr aug_xml = NULL;
+ int ndevs = 0, nint = 0;
+
+ ncf = nif->ncf;
+ ndevs = aug_fmt_match(ncf, &devs,
+ "%s[ DEVICE = '%s' or BRIDGE = '%s' or MASTER =
'%s'"
+ " or MASTER = ../*[BRIDGE = '%s']/DEVICE ]/DEVICE",
+ ifcfg_path, nif->name, nif->name, nif->name, nif->name);
+ ERR_BAIL(ncf);
+
+ nint = uniq_ifcfg_paths(ncf, ndevs, devs, &intf);
+ ERR_BAIL(ncf);
+
+ aug_xml = aug_get_xml(ncf, nint, intf);
+
+ error:
+ free_matches(ndevs, &devs);
+ free_matches(nint, &intf);
+ return aug_xml;
+}
+
+/* return the current static configuration (as saved on disk) */
+char *drv_xml_desc(struct netcf_if *nif) {
+ char *result = NULL;
+ struct netcf *ncf;
+ xmlDocPtr aug_xml = NULL;
+
+ ncf = nif->ncf;
+ aug_xml = aug_get_xml_for_nif(nif);
+ ERR_BAIL(ncf);
+
+ result = apply_stylesheet_to_string(ncf, ncf->driver->put, aug_xml);
+
+ error:
+ xmlFreeDoc(aug_xml);
+ return result;
+}
+
+/* return the current live configuration state - a combination of
+ * drv_xml_desc + results of querying the interface directly */
+
+char *drv_xml_state(struct netcf_if *nif) {
+ char *result = NULL;
+ int r, result_len;
+ struct netcf *ncf;
+ xmlDocPtr ncf_xml = NULL;
+ xmlNodePtr root;
+
+ ncf = nif->ncf;
+
+ /* start out with an empty tree rather than the config tree. Just
+ * put in the interface node and its name
+ */
+ ncf_xml = xmlNewDoc(BAD_CAST "1.0");
+ ERR_NOMEM(ncf_xml == NULL, ncf);
+ root = xmlNewNode(NULL, BAD_CAST "interface");
+ ERR_NOMEM(root == NULL, ncf);
+ xmlDocSetRootElement(ncf_xml, root);
+
+ /* add all info we can gather from the kernel/sysfs/procfs */
+ add_state_to_xml_doc(nif, ncf_xml);
+ ERR_BAIL(ncf);
+
+ r = xsltSaveResultToString((xmlChar **)&result, &result_len,
+ ncf_xml, ncf->driver->put);
+ ERR_NOMEM(r < 0, ncf);
+
+ done:
+ xmlFreeDoc(ncf_xml);
+ return result;
+ error:
+ FREE(result);
+ result = 0;
+ goto done;
+}
+
+/* Report various status info about the interface as bits in
+ * "flags". Returns 0 on success, -1 on failure
+ */
+int drv_if_status(struct netcf_if *nif, unsigned int *flags) {
+ int is_active;
+
+ ERR_THROW(flags == NULL, nif->ncf, EOTHER, "NULL pointer for flags in
ncf_if_status");
+ *flags = 0;
+ is_active = if_is_active(nif->ncf, nif->name);
+ if (is_active)
+ *flags |= NETCF_IFACE_ACTIVE;
+ else
+ *flags |= NETCF_IFACE_INACTIVE;
+ return 0;
+error:
+ return -1;
+}
+
+/* Get the content of /interface/@name. Result must be freed with xmlFree()
+ *
+ * The name on VLAN interfaces is optional; if there is no
+ * /interface/@name, construct a name for the VLAN interface and set
+ * /interface/@name in NCF_XML to it. This way, other code can assume we
+ * always have a name on the interface.
+ */
+static char *device_name_from_xml(struct netcf *ncf, xmlDocPtr ncf_xml) {
+ xmlXPathContextPtr context = NULL;
+ xmlXPathObjectPtr obj = NULL;
+ char *result = NULL;
+
+ context = xmlXPathNewContext(ncf_xml);
+ ERR_NOMEM(context == NULL, ncf);
+
+ obj = xmlXPathEvalExpression(BAD_CAST "string(/interface/@name)", context);
+ ERR_NOMEM(obj == NULL, ncf);
+ assert(obj->type == XPATH_STRING);
+
+ if (xmlStrlen(obj->stringval) == 0) {
+ xmlXPathFreeObject(obj);
+ obj = xmlXPathEvalExpression(BAD_CAST
+ "concat(/interface/vlan/interface/@name, '.',
/interface/vlan/@tag)",
+ context);
+ ERR_NOMEM(obj == NULL, ncf);
+ ERR_COND_BAIL(xmlStrlen(obj->stringval) == 0, ncf, EINTERNAL);
+ assert(obj->type == XPATH_STRING);
+
+ xmlNodePtr iface;
+ iface = xmlDocGetRootElement(ncf_xml);
+ ERR_COND_BAIL(iface == NULL, ncf, EINTERNAL);
+ xmlSetProp(iface, BAD_CAST "name", BAD_CAST result);
+ }
+
+ result = (char *) xmlStrdup(obj->stringval);
+ error:
+ xmlXPathFreeObject(obj);
+ xmlXPathFreeContext(context);
+ return result;
+}
+
+/* The device NAME is a bond if it is mentioned as the MASTER in sopme
+ * other devices config file
+ */
+static bool is_bond(struct netcf *ncf, const char *name) {
+ int nmatches = 0;
+
+ nmatches = aug_fmt_match(ncf, NULL,
+ "%s[ MASTER = '%s']", ifcfg_path, name);
+ return nmatches > 0;
+}
+
+/* The device NAME is a bridge if it has an entry TYPE=Bridge */
+static bool is_bridge(struct netcf *ncf, const char *name) {
+ int nmatches = 0;
+
+ nmatches = aug_fmt_match(ncf, NULL,
+ "%s[ DEVICE = '%s' and TYPE =
'Bridge']",
+ ifcfg_path, name);
+ return nmatches > 0;
+}
+
+static int bridge_slaves(struct netcf *ncf, const char *name, char ***slaves) {
+ struct augeas *aug = NULL;
+ int r, nslaves = 0;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ nslaves = aug_fmt_match(ncf, slaves,
+ "%s[ BRIDGE = '%s' ]/DEVICE", ifcfg_path,
name);
+ ERR_BAIL(ncf);
+ for (int i=0; i < nslaves; i++) {
+ char *p = (*slaves)[i];
+ const char *dev;
+ r = aug_get(aug, p, &dev);
+ ERR_COND_BAIL(r < 0, ncf, EOTHER);
+
+ (*slaves)[i] = strdup(dev);
+ free(p);
+ ERR_NOMEM(slaves[i] == NULL, ncf);
+ }
+ return nslaves;
+ error:
+ free_matches(nslaves, slaves);
+ return -1;
+}
+
+
+/* For an interface NAME, remove the ifcfg-* files for that interface and
+ * all its slaves. */
+static void rm_interface(struct netcf *ncf, const char *name) {
+ int r;
+ char *path = NULL;
+ struct augeas *aug = NULL;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ /* The last or clause catches slaves of a bond that are enslaved to
+ * a bridge NAME */
+ r = xasprintf(&path,
+ "%s[ DEVICE = '%s' or BRIDGE = '%s' or MASTER =
'%s' "
+ " or MASTER = ../*[BRIDGE = '%s']/DEVICE ]",
+ ifcfg_path, name, name, name, name);
+ ERR_NOMEM(r < 0, ncf);
+
+ r = aug_rm(aug, path);
+ ERR_COND_BAIL(r < 0, ncf, EOTHER);
+ error:
+ FREE(path);
+}
+
+/* Remove all interfaces and their slaves mentioned in NCF_XML. We need to
+ * remove interfaces one by one when we define an interface, since what
+ * will become a subinterface may not be related to the new toplevel
+ * interface, and calling RM_INTERFACE on the toplevel interface is
+ * therefore not enough.
+ */
+static void rm_all_interfaces(struct netcf *ncf, xmlDocPtr ncf_xml) {
+ xmlXPathContextPtr context = NULL;
+ xmlXPathObjectPtr obj = NULL;
+
+ context = xmlXPathNewContext(ncf_xml);
+ ERR_NOMEM(context == NULL, ncf);
+
+ obj = xmlXPathEvalExpression(BAD_CAST
+ "//interface[count(parent::vlan) = 0]",
+ context);
+ ERR_NOMEM(obj == NULL, ncf);
+
+
+ xmlNodeSetPtr ns = obj->nodesetval;
+ for (int i=0; i < ns->nodeNr; i++) {
+ xmlChar *name = xmlGetProp(ns->nodeTab[i], BAD_CAST "name");
+ ERR_NOMEM(name == NULL, ncf);
+ rm_interface(ncf, (char *) name);
+ xmlFree(name);
+ ERR_BAIL(ncf);
+ }
+ error:
+ xmlXPathFreeObject(obj);
+ xmlXPathFreeContext(context);
+}
+
+/* Dig through interface NAME and all its subinterfaces for bonds
+ * and either add aliases in modprobe.conf for it (ALIAS == true), or
+ * remove such aliases (ALIAS == false)
+ */
+static void bond_setup(struct netcf *ncf, const char *name, bool alias) {
+ void (*setup)(struct netcf *ncf, const char *name);
+ int nslaves = 0;
+ char **slaves = NULL;
+
+ if (alias)
+ setup = modprobed_alias_bond;
+ else
+ setup = modprobed_unalias_bond;
+
+ if (is_bond(ncf, name)) {
+ setup(ncf, name);
+ ERR_BAIL(ncf);
+ }
+
+ if (is_bridge(ncf, name)) {
+ nslaves = bridge_slaves(ncf, name, &slaves);
+ ERR_BAIL(ncf);
+ for (int i=0; i < nslaves; i++) {
+ if (is_bond(ncf, slaves[i])) {
+ setup(ncf, slaves[i]);
+ ERR_BAIL(ncf);
+ }
+ }
+ }
+
+ error:
+ free_matches(nslaves, &slaves);
+ return;
+}
+
+struct netcf_if *drv_define(struct netcf *ncf, const char *xml_str) {
+ xmlDocPtr ncf_xml = NULL, aug_xml = NULL;
+ char *name = NULL;
+ struct netcf_if *result = NULL;
+ int r;
+ struct augeas *aug = get_augeas(ncf);
+
+ ncf_xml = parse_xml(ncf, xml_str);
+ ERR_BAIL(ncf);
+
+ rng_validate(ncf, ncf_xml);
+ ERR_BAIL(ncf);
+
+ name = device_name_from_xml(ncf, ncf_xml);
+ ERR_COND_BAIL(name == NULL, ncf, EINTERNAL);
+
+ rm_all_interfaces(ncf, ncf_xml);
+ ERR_BAIL(ncf);
+
+ aug_xml = apply_stylesheet(ncf, ncf->driver->get, ncf_xml);
+ ERR_BAIL(ncf);
+
+ aug_put_xml(ncf, aug_xml);
+ ERR_BAIL(ncf);
+
+ bond_setup(ncf, name, true);
+ ERR_BAIL(ncf);
+
+ r = aug_save(aug);
+ if (r < 0 && NCF_DEBUG(ncf)) {
+ fprintf(stderr, "Errors from aug_save:\n");
+ aug_print(aug, stderr, "/augeas//error");
+ }
+ ERR_THROW(r < 0, ncf, EOTHER, "aug_save failed");
+
+ result = make_netcf_if(ncf, name);
+ ERR_BAIL(ncf);
+
+ done:
+ xmlFreeDoc(ncf_xml);
+ xmlFreeDoc(aug_xml);
+ return result;
+ error:
+ unref(result, netcf_if);
+ goto done;
+}
+
+int drv_undefine(struct netcf_if *nif) {
+ struct augeas *aug = NULL;
+ struct netcf *ncf = nif->ncf;
+ int r;
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ bond_setup(ncf, nif->name, false);
+ ERR_BAIL(ncf);
+
+ rm_interface(ncf, nif->name);
+ ERR_BAIL(ncf);
+
+ r = aug_save(aug);
+ ERR_COND_BAIL(r < 0, ncf, EOTHER);
+
+ return 0;
+ error:
+ return -1;
+}
+
+int drv_lookup_by_mac_string(struct netcf *ncf, const char *mac,
+ int maxifaces, struct netcf_if **ifaces)
+{
+ struct augeas *aug = NULL;
+ char *path = NULL, *ifcfg = NULL;
+ const char **names = NULL;
+ int nmatches = 0;
+ char **matches = NULL;
+ int r;
+ int result = -1;
+
+ MEMZERO(ifaces, maxifaces);
+
+ aug = get_augeas(ncf);
+ ERR_BAIL(ncf);
+
+ nmatches = aug_match_mac(ncf, mac, &matches);
+ ERR_BAIL(ncf);
+ if (nmatches == 0) {
+ result = 0;
+ goto done;
+ }
+
+ r = ALLOC_N(names, nmatches);
+ ERR_NOMEM(r < 0, ncf);
+
+ int cnt = 0;
+ for (int i = 0; i < nmatches; i++) {
+ if (!has_ifcfg_file(ncf, matches[i]))
+ continue;
+ r = xasprintf(&ifcfg, "%s[DEVICE = '%s']", ifcfg_path,
matches[i]);
+ ERR_NOMEM(r < 0, ncf);
+
+ if (! is_slave(ncf, ifcfg))
+ names[cnt++] = matches[i];
+ FREE(ifcfg);
+ }
+ for (int i=0; i < cnt && i < maxifaces; i++) {
+ char *name = strdup(names[i]);
+ ERR_NOMEM(name == NULL, ncf);
+ ifaces[i] = make_netcf_if(ncf, name);
+ ERR_BAIL(ncf);
+ }
+ result = cnt;
+ goto done;
+
+ error:
+ for (int i=0; i < maxifaces; i++)
+ unref(ifaces[i], netcf_if);
+ done:
+ free(names);
+ free(ifcfg);
+ free(path);
+ free_matches(nmatches, &matches);
+ return result;
+}
+
+const char *drv_mac_string(struct netcf_if *nif) {
+ struct netcf *ncf = nif->ncf;
+ const char *mac;
+ char *path = NULL;
+ int r;
+
+ r = aug_get_mac(ncf, nif->name, &mac);
+ ERR_THROW(r < 0, ncf, EOTHER, "could not lookup MAC of %s",
nif->name);
+
+ if (mac != NULL) {
+ if (nif->mac == NULL || STRNEQ(nif->mac, mac)) {
+ FREE(nif->mac);
+ nif->mac = strdup(mac);
+ ERR_NOMEM(nif->mac == NULL, ncf);
+ }
+ } else {
+ FREE(nif->mac);
+ }
+ /* fallthrough intentional */
+ error:
+ FREE(path);
+ return nif->mac;
+}
+
+/*
+ * Bringing interfaces up/down
+ */
+
+int drv_if_up(struct netcf_if *nif) {
+ static const char *const ifup = "ifup";
+ struct netcf *ncf = nif->ncf;
+ char **slaves = NULL;
+ int nslaves = 0;
+ int result = -1;
+
+ if (is_bridge(ncf, nif->name)) {
+ /* Bring up bridge slaves before the bridge */
+ nslaves = bridge_slaves(ncf, nif->name, &slaves);
+ ERR_BAIL(ncf);
+
+ for (int i=0; i < nslaves; i++) {
+ run1(ncf, ifup, slaves[i]);
+ ERR_BAIL(ncf);
+ }
+ }
+ run1(ncf, ifup, nif->name);
+ ERR_BAIL(ncf);
+ result = 0;
+ error:
+ free_matches(nslaves, &slaves);
+ return result;
+}
+
+int drv_if_down(struct netcf_if *nif) {
+ static const char *const ifdown = "ifdown";
+ struct netcf *ncf = nif->ncf;
+ char **slaves = NULL;
+ int nslaves = 0;
+ int result = -1;
+
+ run1(ncf, ifdown, nif->name);
+ ERR_BAIL(ncf);
+ if (is_bridge(ncf, nif->name)) {
+ /* Bring up bridge slaves after the bridge */
+ nslaves = bridge_slaves(ncf, nif->name, &slaves);
+ ERR_BAIL(ncf);
+
+ for (int i=0; i < nslaves; i++) {
+ run1(ncf, ifdown, slaves[i]);
+ ERR_BAIL(ncf);
+ }
+ }
+ result = 0;
+ error:
+ free_matches(nslaves, &slaves);
+ return result;
+}
+
+/*
+ * Test interface
+ */
+int drv_get_aug(struct netcf *ncf, const char *ncf_xml, char **aug_xml) {
+ /* Use utility implementation */
+ return dutil_get_aug(ncf, ncf_xml, aug_xml);
+}
+
+/* Transform the Augeas XML AUG_XML into interface XML NCF_XML */
+int drv_put_aug(struct netcf *ncf, const char *aug_xml, char **ncf_xml) {
+ /* Use utility implementation */
+ return dutil_put_aug(ncf, aug_xml, ncf_xml);
+}
+
+/*
+ * Local variables:
+ * indent-tabs-mode: nil
+ * c-indent-level: 4
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ */
+/* vim: set ts=4 sw=4 et: */
--
1.7.2.3