+/*
+ * luci-rpcd - LuCI UBUS RPC server
+ *
+ * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "uci.h"
+
+static struct blob_buf buf;
+static struct uci_context *cursor;
+
+enum {
+ RPC_G_CONFIG,
+ RPC_G_SECTION,
+ RPC_G_OPTION,
+ RPC_G_TYPE,
+ RPC_G_MATCH,
+ __RPC_G_MAX,
+};
+
+static const struct blobmsg_policy rpc_uci_get_policy[__RPC_G_MAX] = {
+ [RPC_G_CONFIG] = { .name = "config", .type = BLOBMSG_TYPE_STRING },
+ [RPC_G_SECTION] = { .name = "section", .type = BLOBMSG_TYPE_STRING },
+ [RPC_G_OPTION] = { .name = "option", .type = BLOBMSG_TYPE_STRING },
+ [RPC_G_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
+ [RPC_G_MATCH] = { .name = "match", .type = BLOBMSG_TYPE_TABLE },
+};
+
+enum {
+ RPC_A_CONFIG,
+ RPC_A_TYPE,
+ RPC_A_NAME,
+ RPC_A_VALUES,
+ __RPC_A_MAX,
+};
+
+static const struct blobmsg_policy rpc_uci_add_policy[__RPC_A_MAX] = {
+ [RPC_A_CONFIG] = { .name = "config", .type = BLOBMSG_TYPE_STRING },
+ [RPC_A_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
+ [RPC_A_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
+ [RPC_A_VALUES] = { .name = "values", .type = BLOBMSG_TYPE_TABLE },
+};
+
+enum {
+ RPC_S_CONFIG,
+ RPC_S_SECTION,
+ RPC_S_TYPE,
+ RPC_S_MATCH,
+ RPC_S_VALUES,
+ __RPC_S_MAX,
+};
+
+static const struct blobmsg_policy rpc_uci_set_policy[__RPC_S_MAX] = {
+ [RPC_S_CONFIG] = { .name = "config", .type = BLOBMSG_TYPE_STRING },
+ [RPC_S_SECTION] = { .name = "section", .type = BLOBMSG_TYPE_STRING },
+ [RPC_S_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
+ [RPC_S_MATCH] = { .name = "match", .type = BLOBMSG_TYPE_TABLE },
+ [RPC_S_VALUES] = { .name = "values", .type = BLOBMSG_TYPE_TABLE },
+};
+
+enum {
+ RPC_R_CONFIG,
+ RPC_R_SECTION,
+ RPC_R_OPTION,
+ RPC_R_NAME,
+ __RPC_R_MAX,
+};
+
+static const struct blobmsg_policy rpc_uci_rename_policy[__RPC_R_MAX] = {
+ [RPC_R_CONFIG] = { .name = "config", .type = BLOBMSG_TYPE_STRING },
+ [RPC_R_SECTION] = { .name = "section", .type = BLOBMSG_TYPE_STRING },
+ [RPC_R_OPTION] = { .name = "option", .type = BLOBMSG_TYPE_STRING },
+ [RPC_R_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
+};
+
+enum {
+ RPC_O_CONFIG,
+ RPC_O_SECTIONS,
+ __RPC_O_MAX,
+};
+
+static const struct blobmsg_policy rpc_uci_order_policy[__RPC_O_MAX] = {
+ [RPC_O_CONFIG] = { .name = "config", .type = BLOBMSG_TYPE_STRING },
+ [RPC_O_SECTIONS] = { .name = "sections", .type = BLOBMSG_TYPE_ARRAY },
+};
+
+enum {
+ RPC_C_CONFIG,
+ __RPC_C_MAX,
+};
+
+static const struct blobmsg_policy rpc_uci_config_policy[__RPC_C_MAX] = {
+ [RPC_C_CONFIG] = { .name = "config", .type = BLOBMSG_TYPE_STRING },
+};
+
+/*
+ * Turn uci error state into ubus return code
+ */
+static int
+rpc_uci_status(void)
+{
+ switch (cursor->err)
+ {
+ case UCI_OK:
+ return UBUS_STATUS_OK;
+
+ case UCI_ERR_INVAL:
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ case UCI_ERR_NOTFOUND:
+ return UBUS_STATUS_NOT_FOUND;
+
+ default:
+ return UBUS_STATUS_UNKNOWN_ERROR;
+ }
+}
+
+/*
+ * Format applicable blob value as string and place a pointer to the string
+ * buffer in "p". Uses a static string buffer.
+ */
+static bool
+rpc_uci_format_blob(struct blob_attr *v, const char **p)
+{
+ static char buf[21];
+
+ *p = NULL;
+
+ switch (blobmsg_type(v))
+ {
+ case BLOBMSG_TYPE_STRING:
+ if (blobmsg_data_len(v) > 1)
+ *p = blobmsg_data(v);
+ break;
+
+ case BLOBMSG_TYPE_INT64:
+ snprintf(buf, sizeof(buf), "%"PRIu64, blobmsg_get_u64(v));
+ *p = buf;
+ break;
+
+ case BLOBMSG_TYPE_INT32:
+ snprintf(buf, sizeof(buf), "%u", blobmsg_get_u32(v));
+ *p = buf;
+ break;
+
+ case BLOBMSG_TYPE_INT16:
+ snprintf(buf, sizeof(buf), "%u", blobmsg_get_u16(v));
+ *p = buf;
+ break;
+
+ case BLOBMSG_TYPE_INT8:
+ snprintf(buf, sizeof(buf), "%u", !!blobmsg_get_u8(v));
+ *p = buf;
+ break;
+
+ default:
+ break;
+ }
+
+ return !!*p;
+}
+
+/*
+ * Lookup the given uci_ptr and enable extended lookup format if the .section
+ * value of the uci_ptr looks like extended syntax. Uses an internal copy
+ * of the given uci_ptr to perform the lookup as failing extended section
+ * lookup operations in libuci will zero our the uci_ptr struct.
+ * Copies the internal uci_ptr back to given the uci_ptr on success.
+ */
+static int
+rpc_uci_lookup(struct uci_ptr *ptr)
+{
+ int rv;
+ struct uci_ptr lookup = *ptr;
+
+ if (!lookup.s && lookup.section && *lookup.section == '@')
+ lookup.flags |= UCI_LOOKUP_EXTENDED;
+
+ rv = uci_lookup_ptr(cursor, &lookup, NULL, true);
+
+ if (!rv)
+ *ptr = lookup;
+
+ return rv;
+}
+
+/*
+ * Checks whether the given uci_option object matches the given string value.
+ * 1) If the uci_option is of type list, check whether any of the list elements
+ * equals to the given string
+ * 2) If the uci_option is of type string, parse it into space separated tokens
+ * and check if any of the tokens equals to the given string.
+ * Returns true if a list element or token matched the given string.
+ */
+static bool
+rpc_uci_match_option(struct uci_option *o, const char *cmp)
+{
+ struct uci_element *e;
+ char *s, *p;
+
+ if (o->type == UCI_TYPE_LIST)
+ {
+ uci_foreach_element(&o->v.list, e)
+ if (e->name && !strcmp(e->name, cmp))
+ return true;
+
+ return false;
+ }
+
+ if (!o->v.string)
+ return false;
+
+ s = strdup(o->v.string);
+
+ if (!s)
+ return false;
+
+ for (p = strtok(s, " \t"); p; p = strtok(NULL, " \t"))
+ {
+ if (!strcmp(p, cmp))
+ {
+ free(s);
+ return true;
+ }
+ }
+
+ free(s);
+ return false;
+}
+
+/*
+ * Checks whether the given uci_section matches the type and value blob attrs.
+ * 1) Returns false if "type" is given and the section type does not match
+ * the value specified in the "type" string blob attribute, else continue.
+ * 2) Tests whether any key in the "matches" table blob attribute exists in
+ * the given uci_section and whether each value is contained in the
+ * corresponding uci option value (see rpc_uci_match_option()).
+ * 3) A missing or empty "matches" table blob attribute is always considered
+ * to be a match.
+ * Returns true if "type" matches or is NULL and "matches" matches or is NULL.
+ */
+static bool
+rpc_uci_match_section(struct uci_section *s,
+ struct blob_attr *type, struct blob_attr *matches)
+{
+ struct uci_element *e;
+ struct blob_attr *cur;
+ const char *cmp;
+ bool match = false;
+ bool empty = true;
+ int rem;
+
+ if (type && strcmp(s->type, blobmsg_data(type)))
+ return false;
+
+ if (!matches)
+ return true;
+
+ blobmsg_for_each_attr(cur, matches, rem)
+ {
+ if (!rpc_uci_format_blob(cur, &cmp))
+ continue;
+
+ uci_foreach_element(&s->options, e)
+ {
+ if (strcmp(e->name, blobmsg_name(cur)))
+ continue;
+
+ if (!rpc_uci_match_option(uci_to_option(e), cmp))
+ return false;
+
+ match = true;
+ }
+
+ empty = false;
+ }
+
+ return (empty || match);
+}
+
+/*
+ * Dump the given uci_option value into the global blobmsg buffer and use
+ * given "name" as key.
+ * 1) If the uci_option is of type list, put a table into the blob buffer and
+ * add each list item as string to it.
+ * 2) If the uci_option is of type string, put its value directly into the blob
+ * buffer.
+ */
+static void
+rpc_uci_dump_option(struct uci_option *o, const char *name)
+{
+ void *c;
+ struct uci_element *e;
+
+ switch (o->type)
+ {
+ case UCI_TYPE_STRING:
+ blobmsg_add_string(&buf, name, o->v.string);
+ break;
+
+ case UCI_TYPE_LIST:
+ c = blobmsg_open_array(&buf, name);
+
+ uci_foreach_element(&o->v.list, e)
+ blobmsg_add_string(&buf, NULL, e->name);
+
+ blobmsg_close_array(&buf, c);
+ break;
+
+ default:
+ break;
+ }
+}
+
+/*
+ * Dump the given uci_section object into the global blobmsg buffer and use
+ * given "name" as key.
+ * Puts a table into the blob buffer and puts each section option member value
+ * as value into the table using the option name as key.
+ * Adds three special keys ".anonymous", ".type" and ".name" which specify the
+ * corresponding section properties.
+ */
+static void
+rpc_uci_dump_section(struct uci_section *s, const char *name)
+{
+ void *c;
+ struct uci_option *o;
+ struct uci_element *e;
+
+ c = blobmsg_open_table(&buf, name);
+
+ blobmsg_add_u8(&buf, ".anonymous", s->anonymous);
+ blobmsg_add_string(&buf, ".type", s->type);
+ blobmsg_add_string(&buf, ".name", s->e.name);
+
+ uci_foreach_element(&s->options, e)
+ {
+ o = uci_to_option(e);
+ rpc_uci_dump_option(o, o->e.name);
+ }
+
+ blobmsg_close_table(&buf, c);
+}
+
+/*
+ * Dump the given uci_package object into the global blobmsg buffer and use
+ * given "name" as key.
+ * Puts a table into the blob buffer and puts each package section member as
+ * value into the table using the section name as key.
+ * Only dumps sections matching the given "type" and "matches", see explaination
+ * of rpc_uci_match_section() for details.
+ */
+static void
+rpc_uci_dump_package(struct uci_package *p, const char *name,
+ struct blob_attr *type, struct blob_attr *matches)
+{
+ void *c;
+ struct uci_element *e;
+
+ c = blobmsg_open_table(&buf, name);
+
+ uci_foreach_element(&p->sections, e)
+ {
+ if (!rpc_uci_match_section(uci_to_section(e), type, matches))
+ continue;
+
+ rpc_uci_dump_section(uci_to_section(e), e->name);
+ }
+
+ blobmsg_close_table(&buf, c);
+}
+
+
+static int
+rpc_uci_get(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct blob_attr *tb[__RPC_G_MAX];
+ struct uci_package *p = NULL;
+ struct uci_ptr ptr = { 0 };
+
+ blobmsg_parse(rpc_uci_get_policy, __RPC_G_MAX, tb,
+ blob_data(msg), blob_len(msg));
+
+ if (!tb[RPC_G_CONFIG])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ ptr.package = blobmsg_data(tb[RPC_G_CONFIG]);
+ uci_load(cursor, ptr.package, &p);
+
+ if (!p)
+ goto out;
+
+ if (tb[RPC_G_SECTION])
+ {
+ ptr.section = blobmsg_data(tb[RPC_G_SECTION]);
+
+ if (tb[RPC_G_OPTION])
+ ptr.option = blobmsg_data(tb[RPC_G_OPTION]);
+ }
+
+ if (rpc_uci_lookup(&ptr) || !(ptr.flags & UCI_LOOKUP_COMPLETE))
+ goto out;
+
+ blob_buf_init(&buf, 0);
+
+ switch (ptr.last->type)
+ {
+ case UCI_TYPE_PACKAGE:
+ rpc_uci_dump_package(ptr.p, "values", tb[RPC_G_TYPE], tb[RPC_G_MATCH]);
+ break;
+
+ case UCI_TYPE_SECTION:
+ rpc_uci_dump_section(ptr.s, "values");
+ break;
+
+ case UCI_TYPE_OPTION:
+ rpc_uci_dump_option(ptr.o, "value");
+ break;
+
+ default:
+ break;
+ }
+
+ ubus_send_reply(ctx, req, buf.head);
+
+out:
+ if (p)
+ uci_unload(cursor, p);
+
+ return rpc_uci_status();
+}
+
+static int
+rpc_uci_add(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct blob_attr *tb[__RPC_A_MAX];
+ struct blob_attr *cur, *elem;
+ struct uci_package *p = NULL;
+ struct uci_section *s;
+ struct uci_ptr ptr = { 0 };
+ int rem, rem2;
+
+ blobmsg_parse(rpc_uci_add_policy, __RPC_A_MAX, tb,
+ blob_data(msg), blob_len(msg));
+
+ if (!tb[RPC_A_CONFIG] || !tb[RPC_A_TYPE])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ ptr.package = blobmsg_data(tb[RPC_A_CONFIG]);
+
+ uci_load(cursor, ptr.package, &p);
+
+ if (!p)
+ goto out;
+
+ /* add named section */
+ if (tb[RPC_A_NAME])
+ {
+ ptr.section = blobmsg_data(tb[RPC_A_NAME]);
+ ptr.value = blobmsg_data(tb[RPC_A_TYPE]);
+ ptr.option = NULL;
+
+ if (rpc_uci_lookup(&ptr) || uci_set(cursor, &ptr))
+ goto out;
+ }
+
+ /* add anon section */
+ else
+ {
+ if (uci_add_section(cursor, p, blobmsg_data(tb[RPC_A_TYPE]), &s) || !s)
+ goto out;
+
+ ptr.section = s->e.name;
+ }
+
+ if (tb[RPC_A_VALUES])
+ {
+ blobmsg_for_each_attr(cur, tb[RPC_A_VALUES], rem)
+ {
+ ptr.o = NULL;
+ ptr.option = blobmsg_name(cur);
+
+ if (rpc_uci_lookup(&ptr) || !ptr.s)
+ continue;
+
+ switch (blobmsg_type(cur))
+ {
+ case BLOBMSG_TYPE_ARRAY:
+ blobmsg_for_each_attr(elem, cur, rem2)
+ if (rpc_uci_format_blob(elem, &ptr.value))
+ uci_add_list(cursor, &ptr);
+ break;
+
+ default:
+ if (rpc_uci_format_blob(cur, &ptr.value))
+ uci_set(cursor, &ptr);
+ break;
+ }
+ }
+ }
+
+ uci_save(cursor, p);
+
+ blob_buf_init(&buf, 0);
+ blobmsg_add_string(&buf, "section", ptr.section);
+ ubus_send_reply(ctx, req, buf.head);
+
+out:
+ if (p)
+ uci_unload(cursor, p);
+
+ return rpc_uci_status();
+}
+
+/*
+ * Turn value from a blob attribute into uci set operation
+ * 1) if the blob is of type array, delete existing option (if any) and
+ * emit uci add_list operations for each element
+ * 2) if the blob is not an array but an option of type list exists,
+ * delete existing list and emit uci set operation for the blob value
+ * 3) in all other cases only emit a set operation if there is no existing
+ * option of if the existing options value differs from the blob value
+ */
+static void
+rpc_uci_merge_set(struct blob_attr *opt, struct uci_ptr *ptr)
+{
+ struct blob_attr *cur;
+ int rem;
+
+ ptr->o = NULL;
+ ptr->option = blobmsg_name(opt);
+
+ if (rpc_uci_lookup(ptr) || !ptr->s)
+ return;
+
+ if (blobmsg_type(opt) == BLOBMSG_TYPE_ARRAY)
+ {
+ if (ptr->o)
+ uci_delete(cursor, ptr);
+
+ blobmsg_for_each_attr(cur, opt, rem)
+ if (rpc_uci_format_blob(cur, &ptr->value))
+ uci_add_list(cursor, ptr);
+ }
+ else if (ptr->o && ptr->o->type == UCI_TYPE_LIST)
+ {
+ uci_delete(cursor, ptr);
+
+ if (rpc_uci_format_blob(opt, &ptr->value))
+ uci_set(cursor, ptr);
+ }
+ else if (rpc_uci_format_blob(opt, &ptr->value))
+ {
+ if (!ptr->o || !ptr->o->v.string || strcmp(ptr->o->v.string, ptr->value))
+ uci_set(cursor, ptr);
+ }
+}
+
+static int
+rpc_uci_set(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct blob_attr *tb[__RPC_S_MAX];
+ struct blob_attr *cur;
+ struct uci_package *p = NULL;
+ struct uci_element *e;
+ struct uci_ptr ptr = { 0 };
+ int rem;
+
+ blobmsg_parse(rpc_uci_set_policy, __RPC_S_MAX, tb,
+ blob_data(msg), blob_len(msg));
+
+ if (!tb[RPC_S_CONFIG] || !tb[RPC_S_VALUES] ||
+ (!tb[RPC_S_SECTION] && !tb[RPC_S_TYPE] && !tb[RPC_S_MATCH]))
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ ptr.package = blobmsg_data(tb[RPC_S_CONFIG]);
+ uci_load(cursor, ptr.package, &p);
+
+ if (!p)
+ goto out;
+
+ if (tb[RPC_S_SECTION])
+ {
+ ptr.section = blobmsg_data(tb[RPC_S_SECTION]);
+ blobmsg_for_each_attr(cur, tb[RPC_S_VALUES], rem)
+ rpc_uci_merge_set(cur, &ptr);
+ }
+ else
+ {
+ uci_foreach_element(&p->sections, e)
+ {
+ if (!rpc_uci_match_section(uci_to_section(e),
+ tb[RPC_S_TYPE], tb[RPC_S_MATCH]))
+ continue;
+
+ ptr.s = NULL;
+ ptr.section = e->name;
+
+ blobmsg_for_each_attr(cur, tb[RPC_S_VALUES], rem)
+ rpc_uci_merge_set(cur, &ptr);
+ }
+ }
+
+ uci_save(cursor, p);
+
+out:
+ if (p)
+ uci_unload(cursor, p);
+
+ return rpc_uci_status();
+}
+
+static int
+rpc_uci_rename(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct blob_attr *tb[__RPC_R_MAX];
+ struct uci_package *p = NULL;
+ struct uci_ptr ptr = { 0 };
+
+ blobmsg_parse(rpc_uci_rename_policy, __RPC_R_MAX, tb,
+ blob_data(msg), blob_len(msg));
+
+ if (!tb[RPC_R_CONFIG] || !tb[RPC_R_SECTION] || !tb[RPC_R_NAME])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ ptr.package = blobmsg_data(tb[RPC_R_CONFIG]);
+ ptr.section = blobmsg_data(tb[RPC_R_SECTION]);
+ ptr.value = blobmsg_data(tb[RPC_R_NAME]);
+
+ if (tb[RPC_R_OPTION])
+ ptr.option = blobmsg_data(tb[RPC_R_OPTION]);
+
+ uci_load(cursor, ptr.package, &p);
+
+ if (!p)
+ goto out;
+
+ if (uci_lookup_ptr(cursor, &ptr, NULL, true))
+ goto out;
+
+ if ((ptr.option && !ptr.o) || !ptr.s)
+ {
+ cursor->err = UCI_ERR_NOTFOUND;
+ goto out;
+ }
+
+ if (uci_rename(cursor, &ptr))
+ goto out;
+
+ uci_save(cursor, p);
+
+out:
+ if (p)
+ uci_unload(cursor, p);
+
+ return rpc_uci_status();
+}
+
+static int
+rpc_uci_order(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct blob_attr *tb[__RPC_O_MAX];
+ struct blob_attr *cur;
+ struct uci_package *p = NULL;
+ struct uci_ptr ptr = { 0 };
+ int rem, i = 1;
+
+ blobmsg_parse(rpc_uci_order_policy, __RPC_O_MAX, tb,
+ blob_data(msg), blob_len(msg));
+
+ if (!tb[RPC_O_CONFIG] || !tb[RPC_O_SECTIONS])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ ptr.package = blobmsg_data(tb[RPC_O_CONFIG]);
+
+ uci_load(cursor, ptr.package, &p);
+
+ if (!p)
+ goto out;
+
+ blobmsg_for_each_attr(cur, tb[RPC_O_SECTIONS], rem)
+ {
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
+ continue;
+
+ ptr.s = NULL;
+ ptr.section = blobmsg_data(cur);
+
+ if (uci_lookup_ptr(cursor, &ptr, NULL, true) || !ptr.s)
+ continue;
+
+ uci_reorder_section(cursor, ptr.s, i++);
+ }
+
+ uci_save(cursor, p);
+
+out:
+ if (p)
+ uci_unload(cursor, p);
+
+ return rpc_uci_status();
+}
+
+static void
+rpc_uci_dump_change(struct uci_delta *d)
+{
+ void *c;
+ const char *types[] = {
+ [UCI_CMD_REORDER] = "order",
+ [UCI_CMD_REMOVE] = "remove",
+ [UCI_CMD_RENAME] = "rename",
+ [UCI_CMD_ADD] = "add",
+ [UCI_CMD_LIST_ADD] = "list-add",
+ [UCI_CMD_LIST_DEL] = "list-del",
+ [UCI_CMD_CHANGE] = "set",
+ };
+
+ if (!d->section)
+ return;
+
+ c = blobmsg_open_array(&buf, NULL);
+
+ blobmsg_add_string(&buf, NULL, types[d->cmd]);
+ blobmsg_add_string(&buf, NULL, d->section);
+
+ if (d->e.name)
+ blobmsg_add_string(&buf, NULL, d->e.name);
+
+ if (d->value)
+ {
+ if (d->cmd == UCI_CMD_REORDER)
+ blobmsg_add_u32(&buf, NULL, strtoul(d->value, NULL, 10));
+ else
+ blobmsg_add_string(&buf, NULL, d->value);
+ }
+
+ blobmsg_close_array(&buf, c);
+}
+
+static int
+rpc_uci_changes(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct blob_attr *tb[__RPC_C_MAX];
+ struct uci_package *p = NULL;
+ struct uci_element *e;
+ void *c;
+
+ blobmsg_parse(rpc_uci_config_policy, __RPC_C_MAX, tb,
+ blob_data(msg), blob_len(msg));
+
+ if (!tb[RPC_C_CONFIG])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ uci_load(cursor, blobmsg_data(tb[RPC_C_CONFIG]), &p);
+
+ if (!p)
+ goto out;
+
+ blob_buf_init(&buf, 0);
+ c = blobmsg_open_array(&buf, "changes");
+
+ uci_foreach_element(&p->saved_delta, e)
+ rpc_uci_dump_change(uci_to_delta(e));
+
+ blobmsg_close_array(&buf, c);
+
+ ubus_send_reply(ctx, req, buf.head);
+
+out:
+ if (p)
+ uci_unload(cursor, p);
+
+ return rpc_uci_status();
+}
+
+static int
+rpc_uci_revert_commit(struct blob_attr *msg, bool commit)
+{
+ struct blob_attr *tb[__RPC_C_MAX];
+ struct uci_package *p = NULL;
+ struct uci_ptr ptr = { 0 };
+
+ blobmsg_parse(rpc_uci_config_policy, __RPC_C_MAX, tb,
+ blob_data(msg), blob_len(msg));
+
+ if (!tb[RPC_C_CONFIG])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ ptr.package = blobmsg_data(tb[RPC_C_CONFIG]);
+ uci_load(cursor, ptr.package, &p);
+
+ if (!p || uci_lookup_ptr(cursor, &ptr, NULL, true) || !ptr.p)
+ goto out;
+
+ if (commit)
+ uci_commit(cursor, &p, false);
+ else
+ uci_revert(cursor, &ptr);
+
+out:
+ if (p)
+ uci_unload(cursor, p);
+
+ return rpc_uci_status();
+}
+
+static int
+rpc_uci_revert(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ return rpc_uci_revert_commit(msg, false);
+}
+
+static int
+rpc_uci_commit(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ return rpc_uci_revert_commit(msg, true);
+}
+
+
+int rpc_uci_api_init(struct ubus_context *ctx)
+{
+ static const struct ubus_method uci_methods[] = {
+ UBUS_METHOD("get", rpc_uci_get, rpc_uci_get_policy),
+ UBUS_METHOD("add", rpc_uci_add, rpc_uci_add_policy),
+ UBUS_METHOD("set", rpc_uci_set, rpc_uci_set_policy),
+ UBUS_METHOD("rename", rpc_uci_rename, rpc_uci_rename_policy),
+ UBUS_METHOD("order", rpc_uci_order, rpc_uci_order_policy),
+ UBUS_METHOD("changes", rpc_uci_changes, rpc_uci_config_policy),
+ UBUS_METHOD("revert", rpc_uci_revert, rpc_uci_config_policy),
+ UBUS_METHOD("commit", rpc_uci_commit, rpc_uci_config_policy),
+ };
+
+ static struct ubus_object_type uci_type =
+ UBUS_OBJECT_TYPE("luci-rpc-uci", uci_methods);
+
+ static struct ubus_object obj = {
+ .name = "uci",
+ .type = &uci_type,
+ .methods = uci_methods,
+ .n_methods = ARRAY_SIZE(uci_methods),
+ };
+
+ cursor = uci_alloc_context();
+
+ if (!cursor)
+ return UBUS_STATUS_UNKNOWN_ERROR;
+
+ return ubus_add_object(ctx, &obj);
+}
projects / project / rpcd.git / commitdiff