diff options
Diffstat (limited to 'package/swconfig/src/uci.c')
| -rw-r--r-- | package/swconfig/src/uci.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/package/swconfig/src/uci.c b/package/swconfig/src/uci.c new file mode 100644 index 0000000000..2df837d278 --- /dev/null +++ b/package/swconfig/src/uci.c @@ -0,0 +1,224 @@ +/* + * uci.c: UCI binding for the switch configuration utility + * + * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundatio. + * + * 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. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <inttypes.h> +#include <errno.h> +#include <stdint.h> +#include <getopt.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <uci.h> + +#include <linux/types.h> +#include <linux/netlink.h> +#include <linux/genetlink.h> +#include <netlink/netlink.h> +#include <netlink/genl/genl.h> +#include <netlink/genl/ctrl.h> +#include <linux/switch.h> +#include "swlib.h" + +#ifndef ARRAY_SIZE +#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) +#endif + +struct swlib_setting { + struct switch_attr *attr; + const char *name; + int port_vlan; + const char *val; + struct swlib_setting *next; +}; + +struct swlib_setting early_settings[] = { + { .name = "reset" }, + { .name = "enable_vlan" }, +}; + +static struct swlib_setting *settings; +static struct swlib_setting **head; + +static int +swlib_map_settings(struct switch_dev *dev, int type, int port_vlan, struct uci_section *s) +{ + struct swlib_setting *setting; + struct switch_attr *attr; + struct uci_element *e; + struct uci_option *o; + int i; + + uci_foreach_element(&s->options, e) { + o = uci_to_option(e); + + if (o->type != UCI_TYPE_STRING) + continue; + + if (!strcmp(e->name, "device")) + continue; + + /* map early settings */ + if (type == SWLIB_ATTR_GROUP_GLOBAL) { + int i; + + for (i = 0; i < ARRAY_SIZE(early_settings); i++) { + if (strcmp(e->name, early_settings[i].name) != 0) + continue; + + early_settings[i].val = o->v.string; + goto skip; + } + } + + attr = swlib_lookup_attr(dev, type, e->name); + if (!attr) + continue; + + setting = malloc(sizeof(struct swlib_setting)); + memset(setting, 0, sizeof(struct swlib_setting)); + setting->attr = attr; + setting->port_vlan = port_vlan; + setting->val = o->v.string; + *head = setting; + head = &setting->next; +skip: + continue; + } +} + +int swlib_apply_from_uci(struct switch_dev *dev, struct uci_package *p) +{ + struct switch_attr *attr; + struct uci_context *ctx = p->ctx; + struct uci_element *e; + struct uci_section *s; + struct uci_option *o; + struct switch_val val; + int i; + + settings = NULL; + head = &settings; + + uci_foreach_element(&p->sections, e) { + s = uci_to_section(e); + + if (strcmp(s->type, "switch") != 0) + continue; + + if (strcmp(e->name, dev->dev_name) != 0) + continue; + + goto found; + } + + /* not found */ + return -1; + +found: + /* look up available early options, which need to be taken care + * of in the correct order */ + for (i = 0; i < ARRAY_SIZE(early_settings); i++) { + early_settings[i].attr = swlib_lookup_attr(dev, + SWLIB_ATTR_GROUP_GLOBAL, early_settings[i].name); + } + swlib_map_settings(dev, SWLIB_ATTR_GROUP_GLOBAL, 0, s); + + /* look for port or vlan sections */ + uci_foreach_element(&p->sections, e) { + struct uci_element *os; + s = uci_to_section(e); + + if (!strcmp(s->type, "switch_port")) { + char *devn, *port, *port_err = NULL; + int port_n; + + uci_foreach_element(&s->options, os) { + o = uci_to_option(os); + if (o->type != UCI_TYPE_STRING) + continue; + + if (!strcmp(os->name, "device")) { + devn = o->v.string; + if (strcmp(devn, dev->dev_name) != 0) + devn = NULL; + } else if (!strcmp(os->name, "port")) { + port = o->v.string; + } + } + if (!dev || !port || !port[0]) + continue; + + port_n = strtoul(port, &port_err, 0); + if (port_err && port_err[0]) + continue; + + swlib_map_settings(dev, SWLIB_ATTR_GROUP_PORT, port_n, s); + } else if (!strcmp(s->type, "switch_vlan")) { + char *devn, *vlan, *vlan_err = NULL; + int vlan_n; + + uci_foreach_element(&s->options, os) { + o = uci_to_option(os); + if (o->type != UCI_TYPE_STRING) + continue; + + if (!strcmp(os->name, "device")) { + devn = o->v.string; + if (strcmp(devn, dev->dev_name) != 0) + devn = NULL; + } else if (!strcmp(os->name, "vlan")) { + vlan = o->v.string; + } + } + if (!dev || !vlan || !vlan[0]) + continue; + + vlan_n = strtoul(vlan, &vlan_err, 0); + if (vlan_err && vlan_err[0]) + continue; + + swlib_map_settings(dev, SWLIB_ATTR_GROUP_VLAN, vlan_n, s); + } + } + + for (i = 0; i < ARRAY_SIZE(early_settings); i++) { + struct swlib_setting *st = &early_settings[i]; + if (!st->attr || !st->val) + continue; + swlib_set_attr_string(dev, st->attr, st->port_vlan, st->val); + + } + + while (settings) { + struct swlib_setting *st = settings; + + swlib_set_attr_string(dev, st->attr, st->port_vlan, st->val); + st = st->next; + free(settings); + settings = st; + } + + /* Apply the config */ + attr = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_GLOBAL, "apply"); + if (!attr) + return 0; + + memset(&val, 0, sizeof(val)); + swlib_set_attr(dev, attr, &val); + + return 0; +} |