2 * rpcd - UBUS RPC server
4 * Copyright (C) 2013-2014 Jo-Philipp Wich <jow@openwrt.org>
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 #include <libubox/blobmsg.h>
23 #include <libubox/blobmsg_json.h>
26 #include <rpcd/exec.h>
27 #include <rpcd/session.h>
29 static struct blob_buf buf
;
30 static struct uci_context
*cursor
;
31 static struct uloop_timeout apply_timer
;
32 static struct ubus_context
*apply_ctx
;
34 char apply_sid
[RPC_SID_LEN
+ 1];
46 static const struct blobmsg_policy rpc_uci_get_policy
[__RPC_G_MAX
] = {
47 [RPC_G_CONFIG
] = { .name
= "config", .type
= BLOBMSG_TYPE_STRING
},
48 [RPC_G_SECTION
] = { .name
= "section", .type
= BLOBMSG_TYPE_STRING
},
49 [RPC_G_OPTION
] = { .name
= "option", .type
= BLOBMSG_TYPE_STRING
},
50 [RPC_G_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
51 [RPC_G_MATCH
] = { .name
= "match", .type
= BLOBMSG_TYPE_TABLE
},
52 [RPC_G_SESSION
] = { .name
= "ubus_rpc_session",
53 .type
= BLOBMSG_TYPE_STRING
},
65 static const struct blobmsg_policy rpc_uci_add_policy
[__RPC_A_MAX
] = {
66 [RPC_A_CONFIG
] = { .name
= "config", .type
= BLOBMSG_TYPE_STRING
},
67 [RPC_A_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
68 [RPC_A_NAME
] = { .name
= "name", .type
= BLOBMSG_TYPE_STRING
},
69 [RPC_A_VALUES
] = { .name
= "values", .type
= BLOBMSG_TYPE_TABLE
},
70 [RPC_A_SESSION
] = { .name
= "ubus_rpc_session",
71 .type
= BLOBMSG_TYPE_STRING
},
84 static const struct blobmsg_policy rpc_uci_set_policy
[__RPC_S_MAX
] = {
85 [RPC_S_CONFIG
] = { .name
= "config", .type
= BLOBMSG_TYPE_STRING
},
86 [RPC_S_SECTION
] = { .name
= "section", .type
= BLOBMSG_TYPE_STRING
},
87 [RPC_S_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
88 [RPC_S_MATCH
] = { .name
= "match", .type
= BLOBMSG_TYPE_TABLE
},
89 [RPC_S_VALUES
] = { .name
= "values", .type
= BLOBMSG_TYPE_TABLE
},
90 [RPC_S_SESSION
] = { .name
= "ubus_rpc_session",
91 .type
= BLOBMSG_TYPE_STRING
},
105 static const struct blobmsg_policy rpc_uci_delete_policy
[__RPC_D_MAX
] = {
106 [RPC_D_CONFIG
] = { .name
= "config", .type
= BLOBMSG_TYPE_STRING
},
107 [RPC_D_SECTION
] = { .name
= "section", .type
= BLOBMSG_TYPE_STRING
},
108 [RPC_D_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
109 [RPC_D_MATCH
] = { .name
= "match", .type
= BLOBMSG_TYPE_TABLE
},
110 [RPC_D_OPTION
] = { .name
= "option", .type
= BLOBMSG_TYPE_STRING
},
111 [RPC_D_OPTIONS
] = { .name
= "options", .type
= BLOBMSG_TYPE_ARRAY
},
112 [RPC_D_SESSION
] = { .name
= "ubus_rpc_session",
113 .type
= BLOBMSG_TYPE_STRING
},
125 static const struct blobmsg_policy rpc_uci_rename_policy
[__RPC_R_MAX
] = {
126 [RPC_R_CONFIG
] = { .name
= "config", .type
= BLOBMSG_TYPE_STRING
},
127 [RPC_R_SECTION
] = { .name
= "section", .type
= BLOBMSG_TYPE_STRING
},
128 [RPC_R_OPTION
] = { .name
= "option", .type
= BLOBMSG_TYPE_STRING
},
129 [RPC_R_NAME
] = { .name
= "name", .type
= BLOBMSG_TYPE_STRING
},
130 [RPC_R_SESSION
] = { .name
= "ubus_rpc_session",
131 .type
= BLOBMSG_TYPE_STRING
},
141 static const struct blobmsg_policy rpc_uci_order_policy
[__RPC_O_MAX
] = {
142 [RPC_O_CONFIG
] = { .name
= "config", .type
= BLOBMSG_TYPE_STRING
},
143 [RPC_O_SECTIONS
] = { .name
= "sections", .type
= BLOBMSG_TYPE_ARRAY
},
144 [RPC_O_SESSION
] = { .name
= "ubus_rpc_session",
145 .type
= BLOBMSG_TYPE_STRING
},
154 static const struct blobmsg_policy rpc_uci_config_policy
[__RPC_C_MAX
] = {
155 [RPC_C_CONFIG
] = { .name
= "config", .type
= BLOBMSG_TYPE_STRING
},
156 [RPC_C_SESSION
] = { .name
= "ubus_rpc_session",
157 .type
= BLOBMSG_TYPE_STRING
},
167 static const struct blobmsg_policy rpc_uci_apply_policy
[__RPC_T_MAX
] = {
168 [RPC_T_ROLLBACK
] = { .name
= "rollback", .type
= BLOBMSG_TYPE_BOOL
},
169 [RPC_T_TIMEOUT
] = { .name
= "timeout", .type
= BLOBMSG_TYPE_INT32
},
170 [RPC_T_SESSION
] = { .name
= "ubus_rpc_session",
171 .type
= BLOBMSG_TYPE_STRING
},
179 static const struct blobmsg_policy rpc_uci_rollback_policy
[__RPC_B_MAX
] = {
180 [RPC_B_SESSION
] = { .name
= "ubus_rpc_session",
181 .type
= BLOBMSG_TYPE_STRING
},
185 * Turn uci error state into ubus return code
193 return UBUS_STATUS_OK
;
196 return UBUS_STATUS_INVALID_ARGUMENT
;
198 case UCI_ERR_NOTFOUND
:
199 return UBUS_STATUS_NOT_FOUND
;
202 return UBUS_STATUS_UNKNOWN_ERROR
;
207 * Clear all save directories from the uci cursor and append the given path
208 * as new save directory.
211 rpc_uci_replace_savedir(const char *path
)
213 struct uci_element
*e
, *tmp
;
215 uci_foreach_element_safe(&cursor
->delta_path
, tmp
, e
)
218 cursor
->delta_path
.prev
= &cursor
->delta_path
;
219 cursor
->delta_path
.next
= &cursor
->delta_path
;
222 uci_set_savedir(cursor
, path
);
226 * Setup per-session delta save directory. If the passed "sid" blob attribute
227 * pointer is NULL then the precedure was not invoked through the ubus-rpc so
228 * we do not perform session isolation and use the default save directory.
231 rpc_uci_set_savedir(struct blob_attr
*sid
)
237 rpc_uci_replace_savedir("/tmp/.uci");
241 snprintf(path
, sizeof(path
) - 1,
242 RPC_UCI_SAVEDIR_PREFIX
"%s", blobmsg_get_string(sid
));
244 rpc_uci_replace_savedir(path
);
248 * Test read access to given config. If the passed "sid" blob attribute pointer
249 * is NULL then the precedure was not invoked through the ubus-rpc so we do not
250 * perform access control and always assume true.
253 rpc_uci_read_access(struct blob_attr
*sid
, struct blob_attr
*config
)
255 rpc_uci_set_savedir(sid
);
260 return rpc_session_access(blobmsg_data(sid
), "uci",
261 blobmsg_data(config
), "read");
265 * Test write access to given config. If the passed "sid" blob attribute pointer
266 * is NULL then the precedure was not invoked through the ubus-rpc so we do not
267 * perform access control and always assume true.
270 rpc_uci_write_access(struct blob_attr
*sid
, struct blob_attr
*config
)
272 rpc_uci_set_savedir(sid
);
277 return rpc_session_access(blobmsg_data(sid
), "uci",
278 blobmsg_data(config
), "write");
282 * Format applicable blob value as string and place a pointer to the string
283 * buffer in "p". Uses a static string buffer.
286 rpc_uci_format_blob(struct blob_attr
*v
, const char **p
)
292 switch (blobmsg_type(v
))
294 case BLOBMSG_TYPE_STRING
:
295 *p
= blobmsg_data(v
);
298 case BLOBMSG_TYPE_INT64
:
299 snprintf(buf
, sizeof(buf
), "%"PRIu64
, blobmsg_get_u64(v
));
303 case BLOBMSG_TYPE_INT32
:
304 snprintf(buf
, sizeof(buf
), "%u", blobmsg_get_u32(v
));
308 case BLOBMSG_TYPE_INT16
:
309 snprintf(buf
, sizeof(buf
), "%u", blobmsg_get_u16(v
));
313 case BLOBMSG_TYPE_INT8
:
314 snprintf(buf
, sizeof(buf
), "%u", !!blobmsg_get_u8(v
));
326 * Lookup the given uci_ptr and enable extended lookup format if the .section
327 * value of the uci_ptr looks like extended syntax. Uses an internal copy
328 * of the given uci_ptr to perform the lookup as failing extended section
329 * lookup operations in libuci will zero our the uci_ptr struct.
330 * Copies the internal uci_ptr back to given the uci_ptr on success.
333 rpc_uci_lookup(struct uci_ptr
*ptr
)
336 struct uci_ptr lookup
= *ptr
;
338 if (!lookup
.s
&& lookup
.section
&& *lookup
.section
== '@')
339 lookup
.flags
|= UCI_LOOKUP_EXTENDED
;
341 rv
= uci_lookup_ptr(cursor
, &lookup
, NULL
, true);
350 * Checks whether the given uci_option object matches the given string value.
351 * 1) If the uci_option is of type list, check whether any of the list elements
352 * equals to the given string
353 * 2) If the uci_option is of type string, parse it into space separated tokens
354 * and check if any of the tokens equals to the given string.
355 * Returns true if a list element or token matched the given string.
358 rpc_uci_match_option(struct uci_option
*o
, const char *cmp
)
360 struct uci_element
*e
;
363 if (o
->type
== UCI_TYPE_LIST
)
365 uci_foreach_element(&o
->v
.list
, e
)
366 if (e
->name
&& !strcmp(e
->name
, cmp
))
375 s
= strdup(o
->v
.string
);
380 for (p
= strtok(s
, " \t"); p
; p
= strtok(NULL
, " \t"))
394 * Checks whether the given uci_section matches the type and value blob attrs.
395 * 1) Returns false if "type" is given and the section type does not match
396 * the value specified in the "type" string blob attribute, else continue.
397 * 2) Tests whether any key in the "matches" table blob attribute exists in
398 * the given uci_section and whether each value is contained in the
399 * corresponding uci option value (see rpc_uci_match_option()).
400 * 3) A missing or empty "matches" table blob attribute is always considered
402 * Returns true if "type" matches or is NULL and "matches" matches or is NULL.
405 rpc_uci_match_section(struct uci_section
*s
,
406 struct blob_attr
*type
, struct blob_attr
*matches
)
408 struct uci_element
*e
;
409 struct blob_attr
*cur
;
415 if (type
&& strcmp(s
->type
, blobmsg_data(type
)))
421 blobmsg_for_each_attr(cur
, matches
, rem
)
423 if (!rpc_uci_format_blob(cur
, &cmp
))
426 uci_foreach_element(&s
->options
, e
)
428 if (strcmp(e
->name
, blobmsg_name(cur
)))
431 if (!rpc_uci_match_option(uci_to_option(e
), cmp
))
440 return (empty
|| match
);
444 * Dump the given uci_option value into the global blobmsg buffer and use
445 * given "name" as key.
446 * 1) If the uci_option is of type list, put a table into the blob buffer and
447 * add each list item as string to it.
448 * 2) If the uci_option is of type string, put its value directly into the blob
452 rpc_uci_dump_option(struct uci_option
*o
, const char *name
)
455 struct uci_element
*e
;
459 case UCI_TYPE_STRING
:
460 blobmsg_add_string(&buf
, name
, o
->v
.string
);
464 c
= blobmsg_open_array(&buf
, name
);
466 uci_foreach_element(&o
->v
.list
, e
)
467 blobmsg_add_string(&buf
, NULL
, e
->name
);
469 blobmsg_close_array(&buf
, c
);
478 * Dump the given uci_section object into the global blobmsg buffer and use
479 * given "name" as key.
480 * Puts a table into the blob buffer and puts each section option member value
481 * as value into the table using the option name as key.
482 * Adds three special keys ".anonymous", ".type" and ".name" which specify the
483 * corresponding section properties.
486 rpc_uci_dump_section(struct uci_section
*s
, const char *name
, int index
)
489 struct uci_option
*o
;
490 struct uci_element
*e
;
492 c
= blobmsg_open_table(&buf
, name
);
494 blobmsg_add_u8(&buf
, ".anonymous", s
->anonymous
);
495 blobmsg_add_string(&buf
, ".type", s
->type
);
496 blobmsg_add_string(&buf
, ".name", s
->e
.name
);
499 blobmsg_add_u32(&buf
, ".index", index
);
501 uci_foreach_element(&s
->options
, e
)
503 o
= uci_to_option(e
);
504 rpc_uci_dump_option(o
, o
->e
.name
);
507 blobmsg_close_table(&buf
, c
);
511 * Dump the given uci_package object into the global blobmsg buffer and use
512 * given "name" as key.
513 * Puts a table into the blob buffer and puts each package section member as
514 * value into the table using the section name as key.
515 * Only dumps sections matching the given "type" and "matches", see explaination
516 * of rpc_uci_match_section() for details.
519 rpc_uci_dump_package(struct uci_package
*p
, const char *name
,
520 struct blob_attr
*type
, struct blob_attr
*matches
)
523 struct uci_element
*e
;
526 c
= blobmsg_open_table(&buf
, name
);
528 uci_foreach_element(&p
->sections
, e
)
532 if (!rpc_uci_match_section(uci_to_section(e
), type
, matches
))
535 rpc_uci_dump_section(uci_to_section(e
), e
->name
, i
);
538 blobmsg_close_table(&buf
, c
);
543 rpc_uci_getcommon(struct ubus_context
*ctx
, struct ubus_request_data
*req
,
544 struct blob_attr
*msg
, bool use_state
)
546 struct blob_attr
*tb
[__RPC_G_MAX
];
547 struct uci_package
*p
= NULL
;
548 struct uci_ptr ptr
= { 0 };
550 blobmsg_parse(rpc_uci_get_policy
, __RPC_G_MAX
, tb
,
551 blob_data(msg
), blob_len(msg
));
553 if (!tb
[RPC_G_CONFIG
])
554 return UBUS_STATUS_INVALID_ARGUMENT
;
556 if (!rpc_uci_read_access(tb
[RPC_G_SESSION
], tb
[RPC_G_CONFIG
]))
557 return UBUS_STATUS_PERMISSION_DENIED
;
559 ptr
.package
= blobmsg_data(tb
[RPC_G_CONFIG
]);
562 uci_set_savedir(cursor
, "/var/state");
564 if (uci_load(cursor
, ptr
.package
, &p
))
565 return rpc_uci_status();
567 if (tb
[RPC_G_SECTION
])
569 ptr
.section
= blobmsg_data(tb
[RPC_G_SECTION
]);
571 if (tb
[RPC_G_OPTION
])
572 ptr
.option
= blobmsg_data(tb
[RPC_G_OPTION
]);
575 if (rpc_uci_lookup(&ptr
) || !(ptr
.flags
& UCI_LOOKUP_COMPLETE
))
578 blob_buf_init(&buf
, 0);
580 switch (ptr
.last
->type
)
582 case UCI_TYPE_PACKAGE
:
583 rpc_uci_dump_package(ptr
.p
, "values", tb
[RPC_G_TYPE
], tb
[RPC_G_MATCH
]);
586 case UCI_TYPE_SECTION
:
587 rpc_uci_dump_section(ptr
.s
, "values", -1);
590 case UCI_TYPE_OPTION
:
591 rpc_uci_dump_option(ptr
.o
, "value");
598 ubus_send_reply(ctx
, req
, buf
.head
);
601 uci_unload(cursor
, p
);
603 return rpc_uci_status();
607 rpc_uci_get(struct ubus_context
*ctx
, struct ubus_object
*obj
,
608 struct ubus_request_data
*req
, const char *method
,
609 struct blob_attr
*msg
)
611 return rpc_uci_getcommon(ctx
, req
, msg
, false);
615 rpc_uci_state(struct ubus_context
*ctx
, struct ubus_object
*obj
,
616 struct ubus_request_data
*req
, const char *method
,
617 struct blob_attr
*msg
)
619 return rpc_uci_getcommon(ctx
, req
, msg
, true);
623 rpc_uci_add(struct ubus_context
*ctx
, struct ubus_object
*obj
,
624 struct ubus_request_data
*req
, const char *method
,
625 struct blob_attr
*msg
)
627 struct blob_attr
*tb
[__RPC_A_MAX
];
628 struct blob_attr
*cur
, *elem
;
629 struct uci_package
*p
= NULL
;
630 struct uci_section
*s
;
631 struct uci_ptr ptr
= { 0 };
634 blobmsg_parse(rpc_uci_add_policy
, __RPC_A_MAX
, tb
,
635 blob_data(msg
), blob_len(msg
));
637 if (!tb
[RPC_A_CONFIG
] || !tb
[RPC_A_TYPE
])
638 return UBUS_STATUS_INVALID_ARGUMENT
;
640 if (!rpc_uci_write_access(tb
[RPC_A_SESSION
], tb
[RPC_A_CONFIG
]))
641 return UBUS_STATUS_PERMISSION_DENIED
;
643 ptr
.package
= blobmsg_data(tb
[RPC_A_CONFIG
]);
645 if (uci_load(cursor
, ptr
.package
, &p
))
646 return rpc_uci_status();
648 /* add named section */
651 ptr
.section
= blobmsg_data(tb
[RPC_A_NAME
]);
652 ptr
.value
= blobmsg_data(tb
[RPC_A_TYPE
]);
655 if (rpc_uci_lookup(&ptr
) || uci_set(cursor
, &ptr
))
659 /* add anon section */
662 if (uci_add_section(cursor
, p
, blobmsg_data(tb
[RPC_A_TYPE
]), &s
) || !s
)
665 ptr
.section
= s
->e
.name
;
668 if (tb
[RPC_A_VALUES
])
670 blobmsg_for_each_attr(cur
, tb
[RPC_A_VALUES
], rem
)
673 ptr
.option
= blobmsg_name(cur
);
675 if (rpc_uci_lookup(&ptr
) || !ptr
.s
)
678 switch (blobmsg_type(cur
))
680 case BLOBMSG_TYPE_ARRAY
:
681 blobmsg_for_each_attr(elem
, cur
, rem2
)
682 if (rpc_uci_format_blob(elem
, &ptr
.value
))
683 uci_add_list(cursor
, &ptr
);
687 if (rpc_uci_format_blob(cur
, &ptr
.value
))
688 uci_set(cursor
, &ptr
);
696 blob_buf_init(&buf
, 0);
697 blobmsg_add_string(&buf
, "section", ptr
.section
);
698 ubus_send_reply(ctx
, req
, buf
.head
);
701 uci_unload(cursor
, p
);
703 return rpc_uci_status();
707 * Turn value from a blob attribute into uci set operation
708 * 1) if the blob is of type array, delete existing option (if any) and
709 * emit uci add_list operations for each element
710 * 2) if the blob is not an array but an option of type list exists,
711 * delete existing list and emit uci set operation for the blob value
712 * 3) in all other cases only emit a set operation if there is no existing
713 * option of if the existing options value differs from the blob value
716 rpc_uci_merge_set(struct blob_attr
*opt
, struct uci_ptr
*ptr
)
718 struct blob_attr
*cur
;
722 ptr
->option
= blobmsg_name(opt
);
725 if (rpc_uci_lookup(ptr
) || !ptr
->s
)
728 if (blobmsg_type(opt
) == BLOBMSG_TYPE_ARRAY
)
731 uci_delete(cursor
, ptr
);
733 blobmsg_for_each_attr(cur
, opt
, rem
)
734 if (rpc_uci_format_blob(cur
, &ptr
->value
))
735 uci_add_list(cursor
, ptr
);
737 else if (ptr
->o
&& ptr
->o
->type
== UCI_TYPE_LIST
)
739 uci_delete(cursor
, ptr
);
741 if (rpc_uci_format_blob(opt
, &ptr
->value
))
742 uci_set(cursor
, ptr
);
744 else if (rpc_uci_format_blob(opt
, &ptr
->value
))
746 if (!ptr
->o
|| !ptr
->o
->v
.string
|| strcmp(ptr
->o
->v
.string
, ptr
->value
))
747 uci_set(cursor
, ptr
);
752 rpc_uci_set(struct ubus_context
*ctx
, struct ubus_object
*obj
,
753 struct ubus_request_data
*req
, const char *method
,
754 struct blob_attr
*msg
)
756 struct blob_attr
*tb
[__RPC_S_MAX
];
757 struct blob_attr
*cur
;
758 struct uci_package
*p
= NULL
;
759 struct uci_element
*e
;
760 struct uci_ptr ptr
= { 0 };
763 blobmsg_parse(rpc_uci_set_policy
, __RPC_S_MAX
, tb
,
764 blob_data(msg
), blob_len(msg
));
766 if (!tb
[RPC_S_CONFIG
] || !tb
[RPC_S_VALUES
] ||
767 (!tb
[RPC_S_SECTION
] && !tb
[RPC_S_TYPE
] && !tb
[RPC_S_MATCH
]))
768 return UBUS_STATUS_INVALID_ARGUMENT
;
770 if (!rpc_uci_write_access(tb
[RPC_S_SESSION
], tb
[RPC_S_CONFIG
]))
771 return UBUS_STATUS_PERMISSION_DENIED
;
773 ptr
.package
= blobmsg_data(tb
[RPC_S_CONFIG
]);
775 if (uci_load(cursor
, ptr
.package
, &p
))
776 return rpc_uci_status();
778 if (tb
[RPC_S_SECTION
])
780 ptr
.section
= blobmsg_data(tb
[RPC_S_SECTION
]);
781 blobmsg_for_each_attr(cur
, tb
[RPC_S_VALUES
], rem
)
782 rpc_uci_merge_set(cur
, &ptr
);
786 uci_foreach_element(&p
->sections
, e
)
788 if (!rpc_uci_match_section(uci_to_section(e
),
789 tb
[RPC_S_TYPE
], tb
[RPC_S_MATCH
]))
793 ptr
.section
= e
->name
;
795 blobmsg_for_each_attr(cur
, tb
[RPC_S_VALUES
], rem
)
796 rpc_uci_merge_set(cur
, &ptr
);
801 uci_unload(cursor
, p
);
803 return rpc_uci_status();
807 * Delete option or section from uci specified by given blob attribute pointer
808 * 1) if the blob is of type array, delete any option named after each element
809 * 2) if the blob is of type string, delete the option named after its value
810 * 3) if the blob is NULL, delete entire section
813 rpc_uci_merge_delete(struct blob_attr
*opt
, struct uci_ptr
*ptr
)
815 struct blob_attr
*cur
;
818 if (rpc_uci_lookup(ptr
) || !ptr
->s
)
826 uci_delete(cursor
, ptr
);
828 else if (blobmsg_type(opt
) == BLOBMSG_TYPE_ARRAY
)
830 blobmsg_for_each_attr(cur
, opt
, rem
)
832 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
836 ptr
->option
= blobmsg_data(cur
);
838 if (rpc_uci_lookup(ptr
) || !ptr
->o
)
841 uci_delete(cursor
, ptr
);
844 else if (blobmsg_type(opt
) == BLOBMSG_TYPE_STRING
)
847 ptr
->option
= blobmsg_data(opt
);
849 if (rpc_uci_lookup(ptr
) || !ptr
->o
)
852 uci_delete(cursor
, ptr
);
857 rpc_uci_delete(struct ubus_context
*ctx
, struct ubus_object
*obj
,
858 struct ubus_request_data
*req
, const char *method
,
859 struct blob_attr
*msg
)
861 struct blob_attr
*tb
[__RPC_D_MAX
];
862 struct uci_package
*p
= NULL
;
863 struct uci_element
*e
, *tmp
;
864 struct uci_ptr ptr
= { 0 };
866 blobmsg_parse(rpc_uci_delete_policy
, __RPC_D_MAX
, tb
,
867 blob_data(msg
), blob_len(msg
));
869 if (!tb
[RPC_D_CONFIG
] ||
870 (!tb
[RPC_D_SECTION
] && !tb
[RPC_D_TYPE
] && !tb
[RPC_D_MATCH
]))
871 return UBUS_STATUS_INVALID_ARGUMENT
;
873 if (!rpc_uci_write_access(tb
[RPC_D_SESSION
], tb
[RPC_D_CONFIG
]))
874 return UBUS_STATUS_PERMISSION_DENIED
;
876 ptr
.package
= blobmsg_data(tb
[RPC_D_CONFIG
]);
878 if (uci_load(cursor
, ptr
.package
, &p
))
879 return rpc_uci_status();
881 if (tb
[RPC_D_SECTION
])
883 ptr
.section
= blobmsg_data(tb
[RPC_D_SECTION
]);
885 if (tb
[RPC_D_OPTIONS
])
886 rpc_uci_merge_delete(tb
[RPC_D_OPTIONS
], &ptr
);
888 rpc_uci_merge_delete(tb
[RPC_D_OPTION
], &ptr
);
892 uci_foreach_element_safe(&p
->sections
, tmp
, e
)
894 if (!rpc_uci_match_section(uci_to_section(e
),
895 tb
[RPC_D_TYPE
], tb
[RPC_D_MATCH
]))
899 ptr
.section
= e
->name
;
901 if (tb
[RPC_D_OPTIONS
])
902 rpc_uci_merge_delete(tb
[RPC_D_OPTIONS
], &ptr
);
904 rpc_uci_merge_delete(tb
[RPC_D_OPTION
], &ptr
);
909 uci_unload(cursor
, p
);
911 return rpc_uci_status();
915 rpc_uci_rename(struct ubus_context
*ctx
, struct ubus_object
*obj
,
916 struct ubus_request_data
*req
, const char *method
,
917 struct blob_attr
*msg
)
919 struct blob_attr
*tb
[__RPC_R_MAX
];
920 struct uci_package
*p
= NULL
;
921 struct uci_ptr ptr
= { 0 };
923 blobmsg_parse(rpc_uci_rename_policy
, __RPC_R_MAX
, tb
,
924 blob_data(msg
), blob_len(msg
));
926 if (!tb
[RPC_R_CONFIG
] || !tb
[RPC_R_SECTION
] || !tb
[RPC_R_NAME
])
927 return UBUS_STATUS_INVALID_ARGUMENT
;
929 if (!rpc_uci_write_access(tb
[RPC_R_SESSION
], tb
[RPC_R_CONFIG
]))
930 return UBUS_STATUS_PERMISSION_DENIED
;
932 ptr
.package
= blobmsg_data(tb
[RPC_R_CONFIG
]);
933 ptr
.section
= blobmsg_data(tb
[RPC_R_SECTION
]);
934 ptr
.value
= blobmsg_data(tb
[RPC_R_NAME
]);
936 if (tb
[RPC_R_OPTION
])
937 ptr
.option
= blobmsg_data(tb
[RPC_R_OPTION
]);
939 if (uci_load(cursor
, ptr
.package
, &p
))
940 return rpc_uci_status();
942 if (uci_lookup_ptr(cursor
, &ptr
, NULL
, true))
945 if ((ptr
.option
&& !ptr
.o
) || !ptr
.s
)
947 cursor
->err
= UCI_ERR_NOTFOUND
;
951 if (uci_rename(cursor
, &ptr
))
957 uci_unload(cursor
, p
);
959 return rpc_uci_status();
963 rpc_uci_order(struct ubus_context
*ctx
, struct ubus_object
*obj
,
964 struct ubus_request_data
*req
, const char *method
,
965 struct blob_attr
*msg
)
967 struct blob_attr
*tb
[__RPC_O_MAX
];
968 struct blob_attr
*cur
;
969 struct uci_package
*p
= NULL
;
970 struct uci_ptr ptr
= { 0 };
973 blobmsg_parse(rpc_uci_order_policy
, __RPC_O_MAX
, tb
,
974 blob_data(msg
), blob_len(msg
));
976 if (!tb
[RPC_O_CONFIG
] || !tb
[RPC_O_SECTIONS
])
977 return UBUS_STATUS_INVALID_ARGUMENT
;
979 if (!rpc_uci_write_access(tb
[RPC_O_SESSION
], tb
[RPC_O_CONFIG
]))
980 return UBUS_STATUS_PERMISSION_DENIED
;
982 ptr
.package
= blobmsg_data(tb
[RPC_O_CONFIG
]);
984 if (uci_load(cursor
, ptr
.package
, &p
))
985 return rpc_uci_status();
987 blobmsg_for_each_attr(cur
, tb
[RPC_O_SECTIONS
], rem
)
989 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
993 ptr
.section
= blobmsg_data(cur
);
995 if (uci_lookup_ptr(cursor
, &ptr
, NULL
, true) || !ptr
.s
)
998 uci_reorder_section(cursor
, ptr
.s
, i
++);
1001 uci_save(cursor
, p
);
1002 uci_unload(cursor
, p
);
1004 return rpc_uci_status();
1008 rpc_uci_dump_change(struct uci_delta
*d
)
1011 const char *types
[] = {
1012 [UCI_CMD_REORDER
] = "order",
1013 [UCI_CMD_REMOVE
] = "remove",
1014 [UCI_CMD_RENAME
] = "rename",
1015 [UCI_CMD_ADD
] = "add",
1016 [UCI_CMD_LIST_ADD
] = "list-add",
1017 [UCI_CMD_LIST_DEL
] = "list-del",
1018 [UCI_CMD_CHANGE
] = "set",
1024 c
= blobmsg_open_array(&buf
, NULL
);
1026 blobmsg_add_string(&buf
, NULL
, types
[d
->cmd
]);
1027 blobmsg_add_string(&buf
, NULL
, d
->section
);
1030 blobmsg_add_string(&buf
, NULL
, d
->e
.name
);
1034 if (d
->cmd
== UCI_CMD_REORDER
)
1035 blobmsg_add_u32(&buf
, NULL
, strtoul(d
->value
, NULL
, 10));
1037 blobmsg_add_string(&buf
, NULL
, d
->value
);
1040 blobmsg_close_array(&buf
, c
);
1044 rpc_uci_changes(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1045 struct ubus_request_data
*req
, const char *method
,
1046 struct blob_attr
*msg
)
1048 struct blob_attr
*tb
[__RPC_C_MAX
];
1049 struct uci_package
*p
= NULL
;
1050 struct uci_element
*e
;
1055 blobmsg_parse(rpc_uci_config_policy
, __RPC_C_MAX
, tb
,
1056 blob_data(msg
), blob_len(msg
));
1058 if (tb
[RPC_C_CONFIG
])
1060 if (!rpc_uci_read_access(tb
[RPC_C_SESSION
], tb
[RPC_C_CONFIG
]))
1061 return UBUS_STATUS_PERMISSION_DENIED
;
1063 if (uci_load(cursor
, blobmsg_data(tb
[RPC_C_CONFIG
]), &p
))
1064 return rpc_uci_status();
1066 blob_buf_init(&buf
, 0);
1067 c
= blobmsg_open_array(&buf
, "changes");
1069 uci_foreach_element(&p
->saved_delta
, e
)
1070 rpc_uci_dump_change(uci_to_delta(e
));
1072 blobmsg_close_array(&buf
, c
);
1074 uci_unload(cursor
, p
);
1076 ubus_send_reply(ctx
, req
, buf
.head
);
1078 return rpc_uci_status();
1081 rpc_uci_set_savedir(tb
[RPC_C_SESSION
]);
1083 if (uci_list_configs(cursor
, &configs
))
1084 return rpc_uci_status();
1086 blob_buf_init(&buf
, 0);
1088 c
= blobmsg_open_table(&buf
, "changes");
1090 for (i
= 0; configs
[i
]; i
++)
1092 if (tb
[RPC_C_SESSION
] &&
1093 !rpc_session_access(blobmsg_data(tb
[RPC_C_SESSION
]), "uci",
1094 configs
[i
], "read"))
1097 if (uci_load(cursor
, configs
[i
], &p
))
1100 if (!uci_list_empty(&p
->saved_delta
))
1102 d
= blobmsg_open_array(&buf
, configs
[i
]);
1104 uci_foreach_element(&p
->saved_delta
, e
)
1105 rpc_uci_dump_change(uci_to_delta(e
));
1107 blobmsg_close_array(&buf
, d
);
1110 uci_unload(cursor
, p
);
1113 blobmsg_close_table(&buf
, c
);
1115 ubus_send_reply(ctx
, req
, buf
.head
);
1121 rpc_uci_trigger_event(struct ubus_context
*ctx
, const char *config
)
1123 char *pkg
= strdup(config
);
1124 static struct blob_buf b
;
1127 if (!ubus_lookup_id(ctx
, "service", &id
)) {
1130 blob_buf_init(&b
, 0);
1131 blobmsg_add_string(&b
, "type", "config.change");
1132 c
= blobmsg_open_table(&b
, "data");
1133 blobmsg_add_string(&b
, "package", pkg
);
1134 blobmsg_close_table(&b
, c
);
1135 ubus_invoke(ctx
, id
, "event", b
.head
, NULL
, 0, 1000);
1141 rpc_uci_revert_commit(struct ubus_context
*ctx
, struct blob_attr
*msg
, bool commit
)
1143 struct blob_attr
*tb
[__RPC_C_MAX
];
1144 struct uci_package
*p
= NULL
;
1145 struct uci_ptr ptr
= { 0 };
1148 return UBUS_STATUS_PERMISSION_DENIED
;
1150 blobmsg_parse(rpc_uci_config_policy
, __RPC_C_MAX
, tb
,
1151 blob_data(msg
), blob_len(msg
));
1153 if (!tb
[RPC_C_CONFIG
])
1154 return UBUS_STATUS_INVALID_ARGUMENT
;
1156 if (!rpc_uci_write_access(tb
[RPC_C_SESSION
], tb
[RPC_C_CONFIG
]))
1157 return UBUS_STATUS_PERMISSION_DENIED
;
1159 ptr
.package
= blobmsg_data(tb
[RPC_C_CONFIG
]);
1163 if (!uci_load(cursor
, ptr
.package
, &p
))
1165 uci_commit(cursor
, &p
, false);
1166 uci_unload(cursor
, p
);
1167 rpc_uci_trigger_event(ctx
, blobmsg_get_string(tb
[RPC_C_CONFIG
]));
1172 if (!uci_lookup_ptr(cursor
, &ptr
, NULL
, true) && ptr
.p
)
1174 uci_revert(cursor
, &ptr
);
1175 uci_unload(cursor
, ptr
.p
);
1179 return rpc_uci_status();
1183 rpc_uci_revert(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1184 struct ubus_request_data
*req
, const char *method
,
1185 struct blob_attr
*msg
)
1187 return rpc_uci_revert_commit(ctx
, msg
, false);
1191 rpc_uci_commit(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1192 struct ubus_request_data
*req
, const char *method
,
1193 struct blob_attr
*msg
)
1195 return rpc_uci_revert_commit(ctx
, msg
, true);
1199 rpc_uci_configs(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1200 struct ubus_request_data
*req
, const char *method
,
1201 struct blob_attr
*msg
)
1207 if (uci_list_configs(cursor
, &configs
))
1210 blob_buf_init(&buf
, 0);
1212 c
= blobmsg_open_array(&buf
, "configs");
1214 for (i
= 0; configs
[i
]; i
++)
1215 blobmsg_add_string(&buf
, NULL
, configs
[i
]);
1217 blobmsg_close_array(&buf
, c
);
1219 ubus_send_reply(ctx
, req
, buf
.head
);
1222 return rpc_uci_status();
1227 * Remove given delta save directory (if any).
1230 rpc_uci_purge_dir(const char *path
)
1235 char file
[PATH_MAX
];
1237 if (stat(path
, &s
) || !S_ISDIR(s
.st_mode
))
1240 if ((d
= opendir(path
)) != NULL
)
1242 while ((e
= readdir(d
)) != NULL
)
1244 snprintf(file
, sizeof(file
) - 1, "%s/%s", path
, e
->d_name
);
1246 if (stat(file
, &s
) || !S_ISREG(s
.st_mode
))
1259 rpc_uci_apply_config(struct ubus_context
*ctx
, char *config
)
1261 struct uci_package
*p
= NULL
;
1263 if (!uci_load(cursor
, config
, &p
)) {
1264 uci_commit(cursor
, &p
, false);
1265 uci_unload(cursor
, p
);
1267 rpc_uci_trigger_event(ctx
, config
);
1273 rpc_uci_copy_file(const char *src
, const char *target
, const char *file
)
1278 snprintf(tmp
, sizeof(tmp
), "%s%s", src
, file
);
1279 in
= fopen(tmp
, "rb");
1280 snprintf(tmp
, sizeof(tmp
), "%s%s", target
, file
);
1281 out
= fopen(tmp
, "wb+");
1284 int len
= fread(tmp
, 1, sizeof(tmp
), in
);
1287 fwrite(tmp
, 1, len
, out
);
1296 rpc_uci_apply_access(const char *sid
, glob_t
*gl
)
1301 if (gl
->gl_pathc
< 3)
1302 return UBUS_STATUS_NO_DATA
;
1304 for (i
= 0; i
< gl
->gl_pathc
; i
++) {
1305 char *config
= basename(gl
->gl_pathv
[i
]);
1309 if (stat(gl
->gl_pathv
[i
], &s
) || !s
.st_size
)
1311 if (!rpc_session_access(sid
, "uci", config
, "write"))
1312 return UBUS_STATUS_PERMISSION_DENIED
;
1317 return UBUS_STATUS_NO_DATA
;
1323 rpc_uci_do_rollback(struct ubus_context
*ctx
, glob_t
*gl
)
1328 /* Test apply permission to see if the initiator session still exists.
1329 * If it does, restore the delta files as well, else just restore the
1330 * main configuration files. */
1332 ? rpc_uci_apply_access(apply_sid
, gl
) : UBUS_STATUS_NOT_FOUND
;
1335 snprintf(tmp
, sizeof(tmp
), RPC_UCI_SAVEDIR_PREFIX
"%s/", apply_sid
);
1339 /* avoid merging unrelated uci changes when restoring old configs */
1340 rpc_uci_replace_savedir("/dev/null");
1342 for (i
= 0; i
< gl
->gl_pathc
; i
++) {
1343 char *config
= basename(gl
->gl_pathv
[i
]);
1348 rpc_uci_copy_file(RPC_SNAPSHOT_FILES
, RPC_UCI_DIR
, config
);
1349 rpc_uci_apply_config(ctx
, config
);
1354 rpc_uci_copy_file(RPC_SNAPSHOT_DELTA
, tmp
, config
);
1357 rpc_uci_purge_dir(RPC_SNAPSHOT_FILES
);
1358 rpc_uci_purge_dir(RPC_SNAPSHOT_DELTA
);
1360 uloop_timeout_cancel(&apply_timer
);
1361 memset(apply_sid
, 0, sizeof(apply_sid
));
1366 rpc_uci_apply_timeout(struct uloop_timeout
*t
)
1371 snprintf(tmp
, sizeof(tmp
), "%s/*", RPC_SNAPSHOT_FILES
);
1372 if (glob(tmp
, GLOB_PERIOD
, NULL
, &gl
) < 0)
1375 rpc_uci_do_rollback(apply_ctx
, &gl
);
1381 rpc_uci_apply(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1382 struct ubus_request_data
*req
, const char *method
,
1383 struct blob_attr
*msg
)
1385 struct blob_attr
*tb
[__RPC_T_MAX
];
1386 int timeout
= RPC_APPLY_TIMEOUT
;
1388 bool rollback
= false;
1393 blobmsg_parse(rpc_uci_apply_policy
, __RPC_T_MAX
, tb
,
1394 blob_data(msg
), blob_len(msg
));
1396 if (tb
[RPC_T_ROLLBACK
])
1397 rollback
= blobmsg_get_bool(tb
[RPC_T_ROLLBACK
]);
1399 if (apply_sid
[0] && rollback
)
1400 return UBUS_STATUS_PERMISSION_DENIED
;
1402 if (!tb
[RPC_T_SESSION
])
1403 return UBUS_STATUS_INVALID_ARGUMENT
;
1405 sid
= blobmsg_data(tb
[RPC_T_SESSION
]);
1407 if (tb
[RPC_T_TIMEOUT
])
1408 timeout
= blobmsg_get_u32(tb
[RPC_T_TIMEOUT
]);
1410 rpc_uci_purge_dir(RPC_SNAPSHOT_FILES
);
1411 rpc_uci_purge_dir(RPC_SNAPSHOT_DELTA
);
1413 if (!apply_sid
[0]) {
1414 rpc_uci_set_savedir(tb
[RPC_T_SESSION
]);
1416 mkdir(RPC_SNAPSHOT_FILES
, 0700);
1417 mkdir(RPC_SNAPSHOT_DELTA
, 0700);
1419 snprintf(tmp
, sizeof(tmp
), RPC_UCI_SAVEDIR_PREFIX
"%s/*", sid
);
1420 if (glob(tmp
, GLOB_PERIOD
, NULL
, &gl
) < 0)
1421 return UBUS_STATUS_NOT_FOUND
;
1423 snprintf(tmp
, sizeof(tmp
), RPC_UCI_SAVEDIR_PREFIX
"%s/", sid
);
1425 ret
= rpc_uci_apply_access(sid
, &gl
);
1431 /* copy SID early because rpc_uci_apply_config() will clobber buf */
1433 strncpy(apply_sid
, sid
, RPC_SID_LEN
);
1435 for (i
= 0; i
< gl
.gl_pathc
; i
++) {
1436 char *config
= basename(gl
.gl_pathv
[i
]);
1442 if (stat(gl
.gl_pathv
[i
], &s
) || !s
.st_size
)
1445 rpc_uci_copy_file(RPC_UCI_DIR
, RPC_SNAPSHOT_FILES
, config
);
1446 rpc_uci_copy_file(tmp
, RPC_SNAPSHOT_DELTA
, config
);
1447 rpc_uci_apply_config(ctx
, config
);
1453 apply_timer
.cb
= rpc_uci_apply_timeout
;
1454 uloop_timeout_set(&apply_timer
, timeout
* 1000);
1463 rpc_uci_confirm(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1464 struct ubus_request_data
*req
, const char *method
,
1465 struct blob_attr
*msg
)
1467 struct blob_attr
*tb
[__RPC_B_MAX
];
1470 blobmsg_parse(rpc_uci_rollback_policy
, __RPC_B_MAX
, tb
,
1471 blob_data(msg
), blob_len(msg
));
1473 if (!tb
[RPC_B_SESSION
])
1474 return UBUS_STATUS_INVALID_ARGUMENT
;
1476 sid
= blobmsg_data(tb
[RPC_B_SESSION
]);
1479 return UBUS_STATUS_NO_DATA
;
1481 if (strcmp(apply_sid
, sid
))
1482 return UBUS_STATUS_PERMISSION_DENIED
;
1484 rpc_uci_purge_dir(RPC_SNAPSHOT_FILES
);
1485 rpc_uci_purge_dir(RPC_SNAPSHOT_DELTA
);
1487 uloop_timeout_cancel(&apply_timer
);
1488 memset(apply_sid
, 0, sizeof(apply_sid
));
1495 rpc_uci_rollback(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1496 struct ubus_request_data
*req
, const char *method
,
1497 struct blob_attr
*msg
)
1499 struct blob_attr
*tb
[__RPC_B_MAX
];
1504 blobmsg_parse(rpc_uci_rollback_policy
, __RPC_B_MAX
, tb
,
1505 blob_data(msg
), blob_len(msg
));
1508 return UBUS_STATUS_NO_DATA
;
1510 if (!tb
[RPC_B_SESSION
])
1511 return UBUS_STATUS_INVALID_ARGUMENT
;
1513 sid
= blobmsg_data(tb
[RPC_B_SESSION
]);
1515 if (strcmp(apply_sid
, sid
))
1516 return UBUS_STATUS_PERMISSION_DENIED
;
1518 snprintf(tmp
, sizeof(tmp
), "%s/*", RPC_SNAPSHOT_FILES
);
1519 if (glob(tmp
, GLOB_PERIOD
, NULL
, &gl
) < 0)
1520 return UBUS_STATUS_NOT_FOUND
;
1522 rpc_uci_do_rollback(ctx
, &gl
);
1530 rpc_uci_reload(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1531 struct ubus_request_data
*req
, const char *method
,
1532 struct blob_attr
*msg
)
1534 char * const cmd
[2] = { "/sbin/reload_config", NULL
};
1537 /* wait for the RPC call to complete */
1539 return execv(cmd
[0], cmd
);
1546 * Session destroy callback to purge associated delta directory.
1549 rpc_uci_purge_savedir_cb(struct rpc_session
*ses
, void *priv
)
1551 char path
[PATH_MAX
];
1553 snprintf(path
, sizeof(path
) - 1, RPC_UCI_SAVEDIR_PREFIX
"%s", ses
->id
);
1554 rpc_uci_purge_dir(path
);
1558 * Removes all delta directories which match the RPC_UCI_SAVEDIR_PREFIX.
1559 * This is used to clean up garbage when starting rpcd.
1561 void rpc_uci_purge_savedirs(void)
1566 if (!glob(RPC_UCI_SAVEDIR_PREFIX
"*", 0, NULL
, &gl
))
1568 for (i
= 0; i
< gl
.gl_pathc
; i
++)
1569 rpc_uci_purge_dir(gl
.gl_pathv
[i
]);
1575 int rpc_uci_api_init(struct ubus_context
*ctx
)
1577 static const struct ubus_method uci_methods
[] = {
1578 { .name
= "configs", .handler
= rpc_uci_configs
},
1579 UBUS_METHOD("get", rpc_uci_get
, rpc_uci_get_policy
),
1580 UBUS_METHOD("state", rpc_uci_state
, rpc_uci_get_policy
),
1581 UBUS_METHOD("add", rpc_uci_add
, rpc_uci_add_policy
),
1582 UBUS_METHOD("set", rpc_uci_set
, rpc_uci_set_policy
),
1583 UBUS_METHOD("delete", rpc_uci_delete
, rpc_uci_delete_policy
),
1584 UBUS_METHOD("rename", rpc_uci_rename
, rpc_uci_rename_policy
),
1585 UBUS_METHOD("order", rpc_uci_order
, rpc_uci_order_policy
),
1586 UBUS_METHOD("changes", rpc_uci_changes
, rpc_uci_config_policy
),
1587 UBUS_METHOD("revert", rpc_uci_revert
, rpc_uci_config_policy
),
1588 UBUS_METHOD("commit", rpc_uci_commit
, rpc_uci_config_policy
),
1589 UBUS_METHOD("apply", rpc_uci_apply
, rpc_uci_apply_policy
),
1590 UBUS_METHOD("confirm", rpc_uci_confirm
, rpc_uci_rollback_policy
),
1591 UBUS_METHOD("rollback", rpc_uci_rollback
, rpc_uci_rollback_policy
),
1592 UBUS_METHOD_NOARG("reload_config", rpc_uci_reload
),
1595 static struct ubus_object_type uci_type
=
1596 UBUS_OBJECT_TYPE("luci-rpc-uci", uci_methods
);
1598 static struct ubus_object obj
= {
1601 .methods
= uci_methods
,
1602 .n_methods
= ARRAY_SIZE(uci_methods
),
1605 static struct rpc_session_cb cb
= {
1606 .cb
= rpc_uci_purge_savedir_cb
1609 cursor
= uci_alloc_context();
1612 return UBUS_STATUS_UNKNOWN_ERROR
;
1614 rpc_session_destroy_cb(&cb
);
1616 return ubus_add_object(ctx
, &obj
);