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 * Validate a uci name
188 rpc_uci_verify_str(const char *name
, bool extended
, bool type
)
196 if (extended
&& *name
!= '@')
199 for (c
= name
+ extended
; *c
; c
++)
200 if (!isalnum(*c
) && *c
!= '_' && ((!type
&& !extended
) || *c
!= '-'))
209 return (e
> c
&& *e
== ']' && *(e
+1) == 0);
216 * Check that string is a valid, shell compatible uci name
218 static bool rpc_uci_verify_name(const char *name
) {
219 return rpc_uci_verify_str(name
, false, false);
223 * Check that string is a valid section type name
225 static bool rpc_uci_verify_type(const char *type
) {
226 return rpc_uci_verify_str(type
, false, true);
230 * Check that the string is a valid section id, optionally in extended
233 static bool rpc_uci_verify_section(const char *section
) {
234 return rpc_uci_verify_str(section
, true, false);
239 * Turn uci error state into ubus return code
247 return UBUS_STATUS_OK
;
250 return UBUS_STATUS_INVALID_ARGUMENT
;
252 case UCI_ERR_NOTFOUND
:
253 return UBUS_STATUS_NOT_FOUND
;
256 return UBUS_STATUS_UNKNOWN_ERROR
;
261 * Clear all save directories from the uci cursor and append the given path
262 * as new save directory.
265 rpc_uci_replace_savedir(const char *path
)
267 struct uci_element
*e
, *tmp
;
269 uci_foreach_element_safe(&cursor
->delta_path
, tmp
, e
) {
276 cursor
->delta_path
.prev
= &cursor
->delta_path
;
277 cursor
->delta_path
.next
= &cursor
->delta_path
;
280 uci_set_savedir(cursor
, path
);
284 * Setup per-session delta save directory. If the passed "sid" blob attribute
285 * pointer is NULL then the precedure was not invoked through the ubus-rpc so
286 * we do not perform session isolation and use the default save directory.
289 rpc_uci_set_savedir(struct blob_attr
*sid
)
295 rpc_uci_replace_savedir("/tmp/.uci");
299 snprintf(path
, sizeof(path
) - 1,
300 RPC_UCI_SAVEDIR_PREFIX
"%s", blobmsg_get_string(sid
));
302 rpc_uci_replace_savedir(path
);
306 * Test read access to given config. If the passed "sid" blob attribute pointer
307 * is NULL then the precedure was not invoked through the ubus-rpc so we do not
308 * perform access control and always assume true.
311 rpc_uci_read_access(struct blob_attr
*sid
, struct blob_attr
*config
)
313 rpc_uci_set_savedir(sid
);
318 return rpc_session_access(blobmsg_data(sid
), "uci",
319 blobmsg_data(config
), "read");
323 * Test write access to given config. If the passed "sid" blob attribute pointer
324 * is NULL then the precedure was not invoked through the ubus-rpc so we do not
325 * perform access control and always assume true.
328 rpc_uci_write_access(struct blob_attr
*sid
, struct blob_attr
*config
)
330 rpc_uci_set_savedir(sid
);
335 return rpc_session_access(blobmsg_data(sid
), "uci",
336 blobmsg_data(config
), "write");
340 * Format applicable blob value as string and place a pointer to the string
341 * buffer in "p". Uses a static string buffer.
344 rpc_uci_format_blob(struct blob_attr
*v
, const char **p
)
350 switch (blobmsg_type(v
))
352 case BLOBMSG_TYPE_STRING
:
353 *p
= blobmsg_data(v
);
356 case BLOBMSG_TYPE_INT64
:
357 snprintf(buf
, sizeof(buf
), "%"PRIu64
, blobmsg_get_u64(v
));
361 case BLOBMSG_TYPE_INT32
:
362 snprintf(buf
, sizeof(buf
), "%u", blobmsg_get_u32(v
));
366 case BLOBMSG_TYPE_INT16
:
367 snprintf(buf
, sizeof(buf
), "%u", blobmsg_get_u16(v
));
371 case BLOBMSG_TYPE_INT8
:
372 snprintf(buf
, sizeof(buf
), "%u", !!blobmsg_get_u8(v
));
384 * Lookup the given uci_ptr and enable extended lookup format if the .section
385 * value of the uci_ptr looks like extended syntax. Uses an internal copy
386 * of the given uci_ptr to perform the lookup as failing extended section
387 * lookup operations in libuci will zero our the uci_ptr struct.
388 * Copies the internal uci_ptr back to given the uci_ptr on success.
391 rpc_uci_lookup(struct uci_ptr
*ptr
)
394 struct uci_ptr lookup
= *ptr
;
396 if (!lookup
.s
&& lookup
.section
&& *lookup
.section
== '@')
397 lookup
.flags
|= UCI_LOOKUP_EXTENDED
;
399 rv
= uci_lookup_ptr(cursor
, &lookup
, NULL
, true);
408 * Checks whether the given uci_option object matches the given string value.
409 * 1) If the uci_option is of type list, check whether any of the list elements
410 * equals to the given string
411 * 2) If the uci_option is of type string, parse it into space separated tokens
412 * and check if any of the tokens equals to the given string.
413 * Returns true if a list element or token matched the given string.
416 rpc_uci_match_option(struct uci_option
*o
, const char *cmp
)
418 struct uci_element
*e
;
421 if (o
->type
== UCI_TYPE_LIST
)
423 uci_foreach_element(&o
->v
.list
, e
)
424 if (e
->name
&& !strcmp(e
->name
, cmp
))
433 s
= strdup(o
->v
.string
);
438 for (p
= strtok(s
, " \t"); p
; p
= strtok(NULL
, " \t"))
452 * Checks whether the given uci_section matches the type and value blob attrs.
453 * 1) Returns false if "type" is given and the section type does not match
454 * the value specified in the "type" string blob attribute, else continue.
455 * 2) Tests whether any key in the "matches" table blob attribute exists in
456 * the given uci_section and whether each value is contained in the
457 * corresponding uci option value (see rpc_uci_match_option()).
458 * 3) A missing or empty "matches" table blob attribute is always considered
460 * Returns true if "type" matches or is NULL and "matches" matches or is NULL.
463 rpc_uci_match_section(struct uci_section
*s
,
464 struct blob_attr
*type
, struct blob_attr
*matches
)
466 struct uci_element
*e
;
467 struct blob_attr
*cur
;
473 if (type
&& strcmp(s
->type
, blobmsg_data(type
)))
479 blobmsg_for_each_attr(cur
, matches
, rem
)
481 if (!rpc_uci_format_blob(cur
, &cmp
))
484 uci_foreach_element(&s
->options
, e
)
486 if (strcmp(e
->name
, blobmsg_name(cur
)))
489 if (!rpc_uci_match_option(uci_to_option(e
), cmp
))
498 return (empty
|| match
);
502 * Dump the given uci_option value into the global blobmsg buffer and use
503 * given "name" as key.
504 * 1) If the uci_option is of type list, put a table into the blob buffer and
505 * add each list item as string to it.
506 * 2) If the uci_option is of type string, put its value directly into the blob
510 rpc_uci_dump_option(struct uci_option
*o
, const char *name
)
513 struct uci_element
*e
;
517 case UCI_TYPE_STRING
:
518 blobmsg_add_string(&buf
, name
, o
->v
.string
);
522 c
= blobmsg_open_array(&buf
, name
);
524 uci_foreach_element(&o
->v
.list
, e
)
525 blobmsg_add_string(&buf
, NULL
, e
->name
);
527 blobmsg_close_array(&buf
, c
);
536 * Dump the given uci_section object into the global blobmsg buffer and use
537 * given "name" as key.
538 * Puts a table into the blob buffer and puts each section option member value
539 * as value into the table using the option name as key.
540 * Adds three special keys ".anonymous", ".type" and ".name" which specify the
541 * corresponding section properties.
544 rpc_uci_dump_section(struct uci_section
*s
, const char *name
, int index
)
547 struct uci_option
*o
;
548 struct uci_element
*e
;
550 c
= blobmsg_open_table(&buf
, name
);
552 blobmsg_add_u8(&buf
, ".anonymous", s
->anonymous
);
553 blobmsg_add_string(&buf
, ".type", s
->type
);
554 blobmsg_add_string(&buf
, ".name", s
->e
.name
);
557 blobmsg_add_u32(&buf
, ".index", index
);
559 uci_foreach_element(&s
->options
, e
)
561 o
= uci_to_option(e
);
562 rpc_uci_dump_option(o
, o
->e
.name
);
565 blobmsg_close_table(&buf
, c
);
569 * Dump the given uci_package object into the global blobmsg buffer and use
570 * given "name" as key.
571 * Puts a table into the blob buffer and puts each package section member as
572 * value into the table using the section name as key.
573 * Only dumps sections matching the given "type" and "matches", see explaination
574 * of rpc_uci_match_section() for details.
577 rpc_uci_dump_package(struct uci_package
*p
, const char *name
,
578 struct blob_attr
*type
, struct blob_attr
*matches
)
581 struct uci_element
*e
;
584 c
= blobmsg_open_table(&buf
, name
);
586 uci_foreach_element(&p
->sections
, e
)
590 if (!rpc_uci_match_section(uci_to_section(e
), type
, matches
))
593 rpc_uci_dump_section(uci_to_section(e
), e
->name
, i
);
596 blobmsg_close_table(&buf
, c
);
601 rpc_uci_getcommon(struct ubus_context
*ctx
, struct ubus_request_data
*req
,
602 struct blob_attr
*msg
, bool use_state
)
604 struct blob_attr
*tb
[__RPC_G_MAX
];
605 struct uci_package
*p
= NULL
;
606 struct uci_ptr ptr
= { 0 };
608 blobmsg_parse(rpc_uci_get_policy
, __RPC_G_MAX
, tb
,
609 blob_data(msg
), blob_len(msg
));
611 if (!tb
[RPC_G_CONFIG
])
612 return UBUS_STATUS_INVALID_ARGUMENT
;
614 if (!rpc_uci_read_access(tb
[RPC_G_SESSION
], tb
[RPC_G_CONFIG
]))
615 return UBUS_STATUS_PERMISSION_DENIED
;
617 ptr
.package
= blobmsg_data(tb
[RPC_G_CONFIG
]);
620 uci_set_savedir(cursor
, "/var/state");
622 if (uci_load(cursor
, ptr
.package
, &p
))
623 return rpc_uci_status();
625 if (tb
[RPC_G_SECTION
])
627 ptr
.section
= blobmsg_data(tb
[RPC_G_SECTION
]);
629 if (tb
[RPC_G_OPTION
])
630 ptr
.option
= blobmsg_data(tb
[RPC_G_OPTION
]);
633 if (rpc_uci_lookup(&ptr
) || !(ptr
.flags
& UCI_LOOKUP_COMPLETE
))
636 blob_buf_init(&buf
, 0);
638 switch (ptr
.last
->type
)
640 case UCI_TYPE_PACKAGE
:
641 rpc_uci_dump_package(ptr
.p
, "values", tb
[RPC_G_TYPE
], tb
[RPC_G_MATCH
]);
644 case UCI_TYPE_SECTION
:
645 rpc_uci_dump_section(ptr
.s
, "values", -1);
648 case UCI_TYPE_OPTION
:
649 rpc_uci_dump_option(ptr
.o
, "value");
656 ubus_send_reply(ctx
, req
, buf
.head
);
659 uci_unload(cursor
, p
);
661 return rpc_uci_status();
665 rpc_uci_get(struct ubus_context
*ctx
, struct ubus_object
*obj
,
666 struct ubus_request_data
*req
, const char *method
,
667 struct blob_attr
*msg
)
669 return rpc_uci_getcommon(ctx
, req
, msg
, false);
673 rpc_uci_state(struct ubus_context
*ctx
, struct ubus_object
*obj
,
674 struct ubus_request_data
*req
, const char *method
,
675 struct blob_attr
*msg
)
677 return rpc_uci_getcommon(ctx
, req
, msg
, true);
681 rpc_uci_add(struct ubus_context
*ctx
, struct ubus_object
*obj
,
682 struct ubus_request_data
*req
, const char *method
,
683 struct blob_attr
*msg
)
685 struct blob_attr
*tb
[__RPC_A_MAX
];
686 struct blob_attr
*cur
, *elem
;
687 struct uci_package
*p
= NULL
;
688 struct uci_section
*s
;
689 struct uci_ptr ptr
= { 0 };
690 int rem
, rem2
, err
= 0;
692 blobmsg_parse(rpc_uci_add_policy
, __RPC_A_MAX
, tb
,
693 blob_data(msg
), blob_len(msg
));
695 if (!tb
[RPC_A_CONFIG
] || !tb
[RPC_A_TYPE
])
696 return UBUS_STATUS_INVALID_ARGUMENT
;
698 if (!rpc_uci_write_access(tb
[RPC_A_SESSION
], tb
[RPC_A_CONFIG
]))
699 return UBUS_STATUS_PERMISSION_DENIED
;
701 if (!rpc_uci_verify_type(blobmsg_data(tb
[RPC_A_TYPE
])))
702 return UBUS_STATUS_INVALID_ARGUMENT
;
704 if (tb
[RPC_A_NAME
] &&
705 !rpc_uci_verify_name(blobmsg_data(tb
[RPC_A_NAME
])))
706 return UBUS_STATUS_INVALID_ARGUMENT
;
708 ptr
.package
= blobmsg_data(tb
[RPC_A_CONFIG
]);
710 if (uci_load(cursor
, ptr
.package
, &p
))
711 return rpc_uci_status();
713 /* add named section */
716 ptr
.section
= blobmsg_data(tb
[RPC_A_NAME
]);
717 ptr
.value
= blobmsg_data(tb
[RPC_A_TYPE
]);
720 if (rpc_uci_lookup(&ptr
) || uci_set(cursor
, &ptr
))
724 /* add anon section */
727 if (uci_add_section(cursor
, p
, blobmsg_data(tb
[RPC_A_TYPE
]), &s
) || !s
)
730 ptr
.section
= s
->e
.name
;
733 if (tb
[RPC_A_VALUES
])
735 blobmsg_for_each_attr(cur
, tb
[RPC_A_VALUES
], rem
)
738 ptr
.option
= blobmsg_name(cur
);
740 if (!rpc_uci_verify_name(ptr
.option
))
743 err
= UBUS_STATUS_INVALID_ARGUMENT
;
748 if (rpc_uci_lookup(&ptr
) || !ptr
.s
)
751 err
= UBUS_STATUS_NOT_FOUND
;
756 switch (blobmsg_type(cur
))
758 case BLOBMSG_TYPE_ARRAY
:
759 blobmsg_for_each_attr(elem
, cur
, rem2
)
761 if (!rpc_uci_format_blob(elem
, &ptr
.value
))
764 err
= UBUS_STATUS_INVALID_ARGUMENT
;
769 uci_add_list(cursor
, &ptr
);
775 if (!rpc_uci_format_blob(cur
, &ptr
.value
))
778 err
= UBUS_STATUS_INVALID_ARGUMENT
;
782 uci_set(cursor
, &ptr
);
794 blob_buf_init(&buf
, 0);
795 blobmsg_add_string(&buf
, "section", ptr
.section
);
796 ubus_send_reply(ctx
, req
, buf
.head
);
800 uci_unload(cursor
, p
);
802 return err
? err
: rpc_uci_status();
806 * Turn value from a blob attribute into uci set operation
807 * 1) if the blob is of type array, delete existing option (if any) and
808 * emit uci add_list operations for each element
809 * 2) if the blob is not an array but an option of type list exists,
810 * delete existing list and emit uci set operation for the blob value
811 * 3) in all other cases only emit a set operation if there is no existing
812 * option of if the existing options value differs from the blob value
815 rpc_uci_merge_set(struct blob_attr
*opt
, struct uci_ptr
*ptr
)
817 struct blob_attr
*cur
;
822 ptr
->option
= blobmsg_name(opt
);
825 if (!rpc_uci_verify_name(ptr
->option
))
826 return UBUS_STATUS_INVALID_ARGUMENT
;
828 if (rpc_uci_lookup(ptr
) || !ptr
->s
)
829 return UBUS_STATUS_NOT_FOUND
;
831 if (blobmsg_type(opt
) == BLOBMSG_TYPE_ARRAY
)
834 uci_delete(cursor
, ptr
);
836 rv
= UBUS_STATUS_INVALID_ARGUMENT
;
838 blobmsg_for_each_attr(cur
, opt
, rem
)
840 if (!rpc_uci_format_blob(cur
, &ptr
->value
))
843 uci_add_list(cursor
, ptr
);
849 else if (ptr
->o
&& ptr
->o
->type
== UCI_TYPE_LIST
)
851 uci_delete(cursor
, ptr
);
853 if (!rpc_uci_format_blob(opt
, &ptr
->value
))
854 return UBUS_STATUS_INVALID_ARGUMENT
;
856 uci_set(cursor
, ptr
);
860 if (!rpc_uci_format_blob(opt
, &ptr
->value
))
861 return UBUS_STATUS_INVALID_ARGUMENT
;
863 if (!ptr
->o
|| !ptr
->o
->v
.string
|| strcmp(ptr
->o
->v
.string
, ptr
->value
))
864 uci_set(cursor
, ptr
);
871 rpc_uci_set(struct ubus_context
*ctx
, struct ubus_object
*obj
,
872 struct ubus_request_data
*req
, const char *method
,
873 struct blob_attr
*msg
)
875 struct blob_attr
*tb
[__RPC_S_MAX
];
876 struct blob_attr
*cur
;
877 struct uci_package
*p
= NULL
;
878 struct uci_element
*e
;
879 struct uci_ptr ptr
= { 0 };
880 int rem
, rv
, err
= 0;
882 blobmsg_parse(rpc_uci_set_policy
, __RPC_S_MAX
, tb
,
883 blob_data(msg
), blob_len(msg
));
885 if (!tb
[RPC_S_CONFIG
] || !tb
[RPC_S_VALUES
] ||
886 (!tb
[RPC_S_SECTION
] && !tb
[RPC_S_TYPE
] && !tb
[RPC_S_MATCH
]))
887 return UBUS_STATUS_INVALID_ARGUMENT
;
889 if (!rpc_uci_write_access(tb
[RPC_S_SESSION
], tb
[RPC_S_CONFIG
]))
890 return UBUS_STATUS_PERMISSION_DENIED
;
892 if (tb
[RPC_S_SECTION
] &&
893 !rpc_uci_verify_section(blobmsg_data(tb
[RPC_S_SECTION
])))
894 return UBUS_STATUS_INVALID_ARGUMENT
;
896 ptr
.package
= blobmsg_data(tb
[RPC_S_CONFIG
]);
898 if (uci_load(cursor
, ptr
.package
, &p
))
899 return rpc_uci_status();
901 if (tb
[RPC_S_SECTION
])
903 ptr
.section
= blobmsg_data(tb
[RPC_S_SECTION
]);
904 blobmsg_for_each_attr(cur
, tb
[RPC_S_VALUES
], rem
)
906 rv
= rpc_uci_merge_set(cur
, &ptr
);
914 uci_foreach_element(&p
->sections
, e
)
916 if (!rpc_uci_match_section(uci_to_section(e
),
917 tb
[RPC_S_TYPE
], tb
[RPC_S_MATCH
]))
921 ptr
.section
= e
->name
;
923 blobmsg_for_each_attr(cur
, tb
[RPC_S_VALUES
], rem
)
925 rv
= rpc_uci_merge_set(cur
, &ptr
);
934 err
= UBUS_STATUS_NOT_FOUND
;
939 uci_unload(cursor
, p
);
941 return err
? err
: rpc_uci_status();
945 * Delete option or section from uci specified by given blob attribute pointer
946 * 1) if the blob is of type array, delete any option named after each element
947 * 2) if the blob is of type string, delete the option named after its value
948 * 3) if the blob is NULL, delete entire section
951 rpc_uci_merge_delete(struct blob_attr
*opt
, struct uci_ptr
*ptr
)
953 struct blob_attr
*cur
;
956 if (rpc_uci_lookup(ptr
) || !ptr
->s
)
957 return UBUS_STATUS_NOT_FOUND
;
964 uci_delete(cursor
, ptr
);
967 else if (blobmsg_type(opt
) == BLOBMSG_TYPE_ARRAY
)
969 rv
= UBUS_STATUS_NOT_FOUND
;
971 blobmsg_for_each_attr(cur
, opt
, rem
)
973 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
977 ptr
->option
= blobmsg_data(cur
);
979 if (rpc_uci_lookup(ptr
) || !ptr
->o
)
982 uci_delete(cursor
, ptr
);
988 else if (blobmsg_type(opt
) == BLOBMSG_TYPE_STRING
)
991 ptr
->option
= blobmsg_data(opt
);
993 if (rpc_uci_lookup(ptr
) || !ptr
->o
)
994 return UBUS_STATUS_NOT_FOUND
;
996 uci_delete(cursor
, ptr
);
1000 return UBUS_STATUS_INVALID_ARGUMENT
;
1004 rpc_uci_delete(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1005 struct ubus_request_data
*req
, const char *method
,
1006 struct blob_attr
*msg
)
1008 struct blob_attr
*tb
[__RPC_D_MAX
];
1009 struct uci_package
*p
= NULL
;
1010 struct uci_element
*e
, *tmp
;
1011 struct uci_ptr ptr
= { 0 };
1014 blobmsg_parse(rpc_uci_delete_policy
, __RPC_D_MAX
, tb
,
1015 blob_data(msg
), blob_len(msg
));
1017 if (!tb
[RPC_D_CONFIG
] ||
1018 (!tb
[RPC_D_SECTION
] && !tb
[RPC_D_TYPE
] && !tb
[RPC_D_MATCH
]))
1019 return UBUS_STATUS_INVALID_ARGUMENT
;
1021 if (!rpc_uci_write_access(tb
[RPC_D_SESSION
], tb
[RPC_D_CONFIG
]))
1022 return UBUS_STATUS_PERMISSION_DENIED
;
1024 if (tb
[RPC_D_TYPE
] &&
1025 !rpc_uci_verify_type(blobmsg_data(tb
[RPC_D_TYPE
])))
1026 return UBUS_STATUS_INVALID_ARGUMENT
;
1028 if (tb
[RPC_D_SECTION
] &&
1029 !rpc_uci_verify_section(blobmsg_data(tb
[RPC_D_SECTION
])))
1030 return UBUS_STATUS_INVALID_ARGUMENT
;
1032 ptr
.package
= blobmsg_data(tb
[RPC_D_CONFIG
]);
1034 if (uci_load(cursor
, ptr
.package
, &p
))
1035 return rpc_uci_status();
1037 if (tb
[RPC_D_SECTION
])
1039 ptr
.section
= blobmsg_data(tb
[RPC_D_SECTION
]);
1041 if (tb
[RPC_D_OPTIONS
])
1042 err
= rpc_uci_merge_delete(tb
[RPC_D_OPTIONS
], &ptr
);
1044 err
= rpc_uci_merge_delete(tb
[RPC_D_OPTION
], &ptr
);
1048 uci_foreach_element_safe(&p
->sections
, tmp
, e
)
1050 if (!rpc_uci_match_section(uci_to_section(e
),
1051 tb
[RPC_D_TYPE
], tb
[RPC_D_MATCH
]))
1055 ptr
.section
= e
->name
;
1057 if (tb
[RPC_D_OPTIONS
])
1058 err
= rpc_uci_merge_delete(tb
[RPC_D_OPTIONS
], &ptr
);
1060 err
= rpc_uci_merge_delete(tb
[RPC_D_OPTION
], &ptr
);
1063 if (!err
&& !ptr
.section
)
1064 err
= UBUS_STATUS_NOT_FOUND
;
1068 uci_save(cursor
, p
);
1070 uci_unload(cursor
, p
);
1072 return err
? err
: rpc_uci_status();
1076 rpc_uci_rename(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1077 struct ubus_request_data
*req
, const char *method
,
1078 struct blob_attr
*msg
)
1080 struct blob_attr
*tb
[__RPC_R_MAX
];
1081 struct uci_package
*p
= NULL
;
1082 struct uci_ptr ptr
= { 0 };
1084 blobmsg_parse(rpc_uci_rename_policy
, __RPC_R_MAX
, tb
,
1085 blob_data(msg
), blob_len(msg
));
1087 if (!tb
[RPC_R_CONFIG
] || !tb
[RPC_R_SECTION
] || !tb
[RPC_R_NAME
])
1088 return UBUS_STATUS_INVALID_ARGUMENT
;
1090 if (!rpc_uci_write_access(tb
[RPC_R_SESSION
], tb
[RPC_R_CONFIG
]))
1091 return UBUS_STATUS_PERMISSION_DENIED
;
1093 ptr
.package
= blobmsg_data(tb
[RPC_R_CONFIG
]);
1094 ptr
.section
= blobmsg_data(tb
[RPC_R_SECTION
]);
1095 ptr
.value
= blobmsg_data(tb
[RPC_R_NAME
]);
1097 if (!rpc_uci_verify_name(ptr
.value
))
1098 return UBUS_STATUS_INVALID_ARGUMENT
;
1100 if (tb
[RPC_R_OPTION
])
1101 ptr
.option
= blobmsg_data(tb
[RPC_R_OPTION
]);
1103 if (uci_load(cursor
, ptr
.package
, &p
))
1104 return rpc_uci_status();
1106 if (uci_lookup_ptr(cursor
, &ptr
, NULL
, true))
1109 if ((ptr
.option
&& !ptr
.o
) || !ptr
.s
)
1111 cursor
->err
= UCI_ERR_NOTFOUND
;
1115 if (uci_rename(cursor
, &ptr
))
1118 uci_save(cursor
, p
);
1121 uci_unload(cursor
, p
);
1123 return rpc_uci_status();
1127 rpc_uci_order(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1128 struct ubus_request_data
*req
, const char *method
,
1129 struct blob_attr
*msg
)
1131 struct blob_attr
*tb
[__RPC_O_MAX
];
1132 struct blob_attr
*cur
;
1133 struct uci_package
*p
= NULL
;
1134 struct uci_ptr ptr
= { 0 };
1135 int rem
, i
= 0, err
= 0;
1137 blobmsg_parse(rpc_uci_order_policy
, __RPC_O_MAX
, tb
,
1138 blob_data(msg
), blob_len(msg
));
1140 if (!tb
[RPC_O_CONFIG
] || !tb
[RPC_O_SECTIONS
])
1141 return UBUS_STATUS_INVALID_ARGUMENT
;
1143 if (!rpc_uci_write_access(tb
[RPC_O_SESSION
], tb
[RPC_O_CONFIG
]))
1144 return UBUS_STATUS_PERMISSION_DENIED
;
1146 ptr
.package
= blobmsg_data(tb
[RPC_O_CONFIG
]);
1148 if (uci_load(cursor
, ptr
.package
, &p
))
1149 return rpc_uci_status();
1151 blobmsg_for_each_attr(cur
, tb
[RPC_O_SECTIONS
], rem
)
1153 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
1156 err
= UBUS_STATUS_INVALID_ARGUMENT
;
1162 ptr
.section
= blobmsg_data(cur
);
1164 if (uci_lookup_ptr(cursor
, &ptr
, NULL
, true) || !ptr
.s
)
1167 err
= UBUS_STATUS_NOT_FOUND
;
1172 uci_reorder_section(cursor
, ptr
.s
, i
++);
1176 uci_save(cursor
, p
);
1178 uci_unload(cursor
, p
);
1180 return err
? err
: rpc_uci_status();
1184 rpc_uci_dump_change(struct uci_delta
*d
)
1187 const char *types
[] = {
1188 [UCI_CMD_REORDER
] = "order",
1189 [UCI_CMD_REMOVE
] = "remove",
1190 [UCI_CMD_RENAME
] = "rename",
1191 [UCI_CMD_ADD
] = "add",
1192 [UCI_CMD_LIST_ADD
] = "list-add",
1193 [UCI_CMD_LIST_DEL
] = "list-del",
1194 [UCI_CMD_CHANGE
] = "set",
1200 c
= blobmsg_open_array(&buf
, NULL
);
1202 blobmsg_add_string(&buf
, NULL
, types
[d
->cmd
]);
1203 blobmsg_add_string(&buf
, NULL
, d
->section
);
1206 blobmsg_add_string(&buf
, NULL
, d
->e
.name
);
1210 if (d
->cmd
== UCI_CMD_REORDER
)
1211 blobmsg_add_u32(&buf
, NULL
, strtoul(d
->value
, NULL
, 10));
1213 blobmsg_add_string(&buf
, NULL
, d
->value
);
1216 blobmsg_close_array(&buf
, c
);
1220 rpc_uci_changes(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1221 struct ubus_request_data
*req
, const char *method
,
1222 struct blob_attr
*msg
)
1224 struct blob_attr
*tb
[__RPC_C_MAX
];
1225 struct uci_package
*p
= NULL
;
1226 struct uci_element
*e
;
1231 blobmsg_parse(rpc_uci_config_policy
, __RPC_C_MAX
, tb
,
1232 blob_data(msg
), blob_len(msg
));
1234 if (tb
[RPC_C_CONFIG
])
1236 if (!rpc_uci_read_access(tb
[RPC_C_SESSION
], tb
[RPC_C_CONFIG
]))
1237 return UBUS_STATUS_PERMISSION_DENIED
;
1239 if (uci_load(cursor
, blobmsg_data(tb
[RPC_C_CONFIG
]), &p
))
1240 return rpc_uci_status();
1242 blob_buf_init(&buf
, 0);
1243 c
= blobmsg_open_array(&buf
, "changes");
1245 uci_foreach_element(&p
->saved_delta
, e
)
1246 rpc_uci_dump_change(uci_to_delta(e
));
1248 blobmsg_close_array(&buf
, c
);
1250 uci_unload(cursor
, p
);
1252 ubus_send_reply(ctx
, req
, buf
.head
);
1254 return rpc_uci_status();
1257 rpc_uci_set_savedir(tb
[RPC_C_SESSION
]);
1259 if (uci_list_configs(cursor
, &configs
))
1260 return rpc_uci_status();
1262 blob_buf_init(&buf
, 0);
1264 c
= blobmsg_open_table(&buf
, "changes");
1266 for (i
= 0; configs
[i
]; i
++)
1268 if (tb
[RPC_C_SESSION
] &&
1269 !rpc_session_access(blobmsg_data(tb
[RPC_C_SESSION
]), "uci",
1270 configs
[i
], "read"))
1273 if (uci_load(cursor
, configs
[i
], &p
))
1276 if (!uci_list_empty(&p
->saved_delta
))
1278 d
= blobmsg_open_array(&buf
, configs
[i
]);
1280 uci_foreach_element(&p
->saved_delta
, e
)
1281 rpc_uci_dump_change(uci_to_delta(e
));
1283 blobmsg_close_array(&buf
, d
);
1286 uci_unload(cursor
, p
);
1291 blobmsg_close_table(&buf
, c
);
1293 ubus_send_reply(ctx
, req
, buf
.head
);
1299 rpc_uci_trigger_event(struct ubus_context
*ctx
, const char *config
)
1301 char *pkg
= strdup(config
);
1302 static struct blob_buf b
;
1305 if (!ubus_lookup_id(ctx
, "service", &id
)) {
1308 blob_buf_init(&b
, 0);
1309 blobmsg_add_string(&b
, "type", "config.change");
1310 c
= blobmsg_open_table(&b
, "data");
1311 blobmsg_add_string(&b
, "package", pkg
);
1312 blobmsg_close_table(&b
, c
);
1313 ubus_invoke(ctx
, id
, "event", b
.head
, NULL
, 0, 1000);
1319 rpc_uci_revert_commit(struct ubus_context
*ctx
, struct blob_attr
*msg
, bool commit
)
1321 struct blob_attr
*tb
[__RPC_C_MAX
];
1322 struct uci_package
*p
= NULL
;
1323 struct uci_ptr ptr
= { 0 };
1326 return UBUS_STATUS_PERMISSION_DENIED
;
1328 blobmsg_parse(rpc_uci_config_policy
, __RPC_C_MAX
, tb
,
1329 blob_data(msg
), blob_len(msg
));
1331 if (!tb
[RPC_C_CONFIG
])
1332 return UBUS_STATUS_INVALID_ARGUMENT
;
1334 if (!rpc_uci_write_access(tb
[RPC_C_SESSION
], tb
[RPC_C_CONFIG
]))
1335 return UBUS_STATUS_PERMISSION_DENIED
;
1337 ptr
.package
= blobmsg_data(tb
[RPC_C_CONFIG
]);
1341 if (!uci_load(cursor
, ptr
.package
, &p
))
1343 uci_commit(cursor
, &p
, false);
1344 uci_unload(cursor
, p
);
1345 rpc_uci_trigger_event(ctx
, blobmsg_get_string(tb
[RPC_C_CONFIG
]));
1350 if (!uci_lookup_ptr(cursor
, &ptr
, NULL
, true) && ptr
.p
)
1352 uci_revert(cursor
, &ptr
);
1353 uci_unload(cursor
, ptr
.p
);
1357 return rpc_uci_status();
1361 rpc_uci_revert(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1362 struct ubus_request_data
*req
, const char *method
,
1363 struct blob_attr
*msg
)
1365 return rpc_uci_revert_commit(ctx
, msg
, false);
1369 rpc_uci_commit(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1370 struct ubus_request_data
*req
, const char *method
,
1371 struct blob_attr
*msg
)
1373 return rpc_uci_revert_commit(ctx
, msg
, true);
1377 rpc_uci_configs(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1378 struct ubus_request_data
*req
, const char *method
,
1379 struct blob_attr
*msg
)
1385 if (uci_list_configs(cursor
, &configs
))
1388 blob_buf_init(&buf
, 0);
1390 c
= blobmsg_open_array(&buf
, "configs");
1392 for (i
= 0; configs
[i
]; i
++)
1393 blobmsg_add_string(&buf
, NULL
, configs
[i
]);
1397 blobmsg_close_array(&buf
, c
);
1399 ubus_send_reply(ctx
, req
, buf
.head
);
1402 return rpc_uci_status();
1407 * Remove given delta save directory (if any).
1410 rpc_uci_purge_dir(const char *path
)
1415 char file
[PATH_MAX
];
1417 if (stat(path
, &s
) || !S_ISDIR(s
.st_mode
))
1420 if ((d
= opendir(path
)) != NULL
)
1422 while ((e
= readdir(d
)) != NULL
)
1424 snprintf(file
, sizeof(file
) - 1, "%s/%s", path
, e
->d_name
);
1426 if (stat(file
, &s
) || !S_ISREG(s
.st_mode
))
1439 rpc_uci_apply_config(struct ubus_context
*ctx
, char *config
)
1441 struct uci_package
*p
= NULL
;
1443 if (!uci_load(cursor
, config
, &p
)) {
1444 uci_commit(cursor
, &p
, false);
1445 uci_unload(cursor
, p
);
1447 rpc_uci_trigger_event(ctx
, config
);
1453 rpc_uci_copy_file(const char *src
, const char *target
, const char *file
)
1458 snprintf(tmp
, sizeof(tmp
), "%s%s", src
, file
);
1459 in
= fopen(tmp
, "rb");
1460 snprintf(tmp
, sizeof(tmp
), "%s%s", target
, file
);
1461 out
= fopen(tmp
, "wb+");
1464 int len
= fread(tmp
, 1, sizeof(tmp
), in
);
1467 fwrite(tmp
, 1, len
, out
);
1476 rpc_uci_apply_access(const char *sid
, glob_t
*gl
)
1481 if (gl
->gl_pathc
< 3)
1482 return UBUS_STATUS_NO_DATA
;
1484 for (i
= 0; i
< gl
->gl_pathc
; i
++) {
1485 char *config
= basename(gl
->gl_pathv
[i
]);
1489 if (stat(gl
->gl_pathv
[i
], &s
) || !s
.st_size
)
1491 if (!rpc_session_access(sid
, "uci", config
, "write"))
1492 return UBUS_STATUS_PERMISSION_DENIED
;
1497 return UBUS_STATUS_NO_DATA
;
1503 rpc_uci_do_rollback(struct ubus_context
*ctx
, glob_t
*gl
)
1508 /* Test apply permission to see if the initiator session still exists.
1509 * If it does, restore the delta files as well, else just restore the
1510 * main configuration files. */
1512 ? rpc_uci_apply_access(apply_sid
, gl
) : UBUS_STATUS_NOT_FOUND
;
1515 snprintf(tmp
, sizeof(tmp
), RPC_UCI_SAVEDIR_PREFIX
"%s/", apply_sid
);
1519 /* avoid merging unrelated uci changes when restoring old configs */
1520 rpc_uci_replace_savedir("/dev/null");
1522 for (i
= 0; i
< gl
->gl_pathc
; i
++) {
1523 char *config
= basename(gl
->gl_pathv
[i
]);
1528 rpc_uci_copy_file(RPC_SNAPSHOT_FILES
, RPC_UCI_DIR
, config
);
1529 rpc_uci_apply_config(ctx
, config
);
1534 rpc_uci_copy_file(RPC_SNAPSHOT_DELTA
, tmp
, config
);
1537 rpc_uci_purge_dir(RPC_SNAPSHOT_FILES
);
1538 rpc_uci_purge_dir(RPC_SNAPSHOT_DELTA
);
1540 uloop_timeout_cancel(&apply_timer
);
1541 memset(apply_sid
, 0, sizeof(apply_sid
));
1546 rpc_uci_apply_timeout(struct uloop_timeout
*t
)
1551 snprintf(tmp
, sizeof(tmp
), "%s/*", RPC_SNAPSHOT_FILES
);
1552 if (glob(tmp
, GLOB_PERIOD
, NULL
, &gl
) < 0)
1555 rpc_uci_do_rollback(apply_ctx
, &gl
);
1561 rpc_uci_apply(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1562 struct ubus_request_data
*req
, const char *method
,
1563 struct blob_attr
*msg
)
1565 struct blob_attr
*tb
[__RPC_T_MAX
];
1566 int timeout
= RPC_APPLY_TIMEOUT
;
1568 bool rollback
= false;
1573 blobmsg_parse(rpc_uci_apply_policy
, __RPC_T_MAX
, tb
,
1574 blob_data(msg
), blob_len(msg
));
1576 if (tb
[RPC_T_ROLLBACK
])
1577 rollback
= blobmsg_get_bool(tb
[RPC_T_ROLLBACK
]);
1579 if (apply_sid
[0] && rollback
)
1580 return UBUS_STATUS_PERMISSION_DENIED
;
1582 if (!tb
[RPC_T_SESSION
])
1583 return UBUS_STATUS_INVALID_ARGUMENT
;
1585 sid
= blobmsg_data(tb
[RPC_T_SESSION
]);
1587 if (tb
[RPC_T_TIMEOUT
])
1588 timeout
= blobmsg_get_u32(tb
[RPC_T_TIMEOUT
]);
1590 rpc_uci_purge_dir(RPC_SNAPSHOT_FILES
);
1591 rpc_uci_purge_dir(RPC_SNAPSHOT_DELTA
);
1593 if (!apply_sid
[0]) {
1594 rpc_uci_set_savedir(tb
[RPC_T_SESSION
]);
1596 mkdir(RPC_SNAPSHOT_FILES
, 0700);
1597 mkdir(RPC_SNAPSHOT_DELTA
, 0700);
1599 snprintf(tmp
, sizeof(tmp
), RPC_UCI_SAVEDIR_PREFIX
"%s/*", sid
);
1600 if (glob(tmp
, GLOB_PERIOD
, NULL
, &gl
) < 0)
1601 return UBUS_STATUS_NOT_FOUND
;
1603 snprintf(tmp
, sizeof(tmp
), RPC_UCI_SAVEDIR_PREFIX
"%s/", sid
);
1605 ret
= rpc_uci_apply_access(sid
, &gl
);
1611 /* copy SID early because rpc_uci_apply_config() will clobber buf */
1613 strncpy(apply_sid
, sid
, RPC_SID_LEN
);
1615 for (i
= 0; i
< gl
.gl_pathc
; i
++) {
1616 char *config
= basename(gl
.gl_pathv
[i
]);
1622 if (stat(gl
.gl_pathv
[i
], &s
) || !s
.st_size
)
1625 rpc_uci_copy_file(RPC_UCI_DIR
, RPC_SNAPSHOT_FILES
, config
);
1626 rpc_uci_copy_file(tmp
, RPC_SNAPSHOT_DELTA
, config
);
1627 rpc_uci_apply_config(ctx
, config
);
1633 apply_timer
.cb
= rpc_uci_apply_timeout
;
1634 uloop_timeout_set(&apply_timer
, timeout
* 1000);
1643 rpc_uci_confirm(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1644 struct ubus_request_data
*req
, const char *method
,
1645 struct blob_attr
*msg
)
1647 struct blob_attr
*tb
[__RPC_B_MAX
];
1650 blobmsg_parse(rpc_uci_rollback_policy
, __RPC_B_MAX
, tb
,
1651 blob_data(msg
), blob_len(msg
));
1653 if (!tb
[RPC_B_SESSION
])
1654 return UBUS_STATUS_INVALID_ARGUMENT
;
1656 sid
= blobmsg_data(tb
[RPC_B_SESSION
]);
1659 return UBUS_STATUS_NO_DATA
;
1661 if (strcmp(apply_sid
, sid
))
1662 return UBUS_STATUS_PERMISSION_DENIED
;
1664 rpc_uci_purge_dir(RPC_SNAPSHOT_FILES
);
1665 rpc_uci_purge_dir(RPC_SNAPSHOT_DELTA
);
1667 uloop_timeout_cancel(&apply_timer
);
1668 memset(apply_sid
, 0, sizeof(apply_sid
));
1675 rpc_uci_rollback(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1676 struct ubus_request_data
*req
, const char *method
,
1677 struct blob_attr
*msg
)
1679 struct blob_attr
*tb
[__RPC_B_MAX
];
1684 blobmsg_parse(rpc_uci_rollback_policy
, __RPC_B_MAX
, tb
,
1685 blob_data(msg
), blob_len(msg
));
1688 return UBUS_STATUS_NO_DATA
;
1690 if (!tb
[RPC_B_SESSION
])
1691 return UBUS_STATUS_INVALID_ARGUMENT
;
1693 sid
= blobmsg_data(tb
[RPC_B_SESSION
]);
1695 if (strcmp(apply_sid
, sid
))
1696 return UBUS_STATUS_PERMISSION_DENIED
;
1698 snprintf(tmp
, sizeof(tmp
), "%s/*", RPC_SNAPSHOT_FILES
);
1699 if (glob(tmp
, GLOB_PERIOD
, NULL
, &gl
) < 0)
1700 return UBUS_STATUS_NOT_FOUND
;
1702 rpc_uci_do_rollback(ctx
, &gl
);
1710 rpc_uci_reload(struct ubus_context
*ctx
, struct ubus_object
*obj
,
1711 struct ubus_request_data
*req
, const char *method
,
1712 struct blob_attr
*msg
)
1714 char * const cmd
[2] = { "/sbin/reload_config", NULL
};
1717 /* wait for the RPC call to complete */
1719 return execv(cmd
[0], cmd
);
1726 * Session destroy callback to purge associated delta directory.
1729 rpc_uci_purge_savedir_cb(struct rpc_session
*ses
, void *priv
)
1731 char path
[PATH_MAX
];
1733 snprintf(path
, sizeof(path
) - 1, RPC_UCI_SAVEDIR_PREFIX
"%s", ses
->id
);
1734 rpc_uci_purge_dir(path
);
1738 * Removes all delta directories which match the RPC_UCI_SAVEDIR_PREFIX.
1739 * This is used to clean up garbage when starting rpcd.
1741 void rpc_uci_purge_savedirs(void)
1746 if (!glob(RPC_UCI_SAVEDIR_PREFIX
"*", 0, NULL
, &gl
))
1748 for (i
= 0; i
< gl
.gl_pathc
; i
++)
1749 rpc_uci_purge_dir(gl
.gl_pathv
[i
]);
1755 int rpc_uci_api_init(struct ubus_context
*ctx
)
1757 static const struct ubus_method uci_methods
[] = {
1758 { .name
= "configs", .handler
= rpc_uci_configs
},
1759 UBUS_METHOD("get", rpc_uci_get
, rpc_uci_get_policy
),
1760 UBUS_METHOD("state", rpc_uci_state
, rpc_uci_get_policy
),
1761 UBUS_METHOD("add", rpc_uci_add
, rpc_uci_add_policy
),
1762 UBUS_METHOD("set", rpc_uci_set
, rpc_uci_set_policy
),
1763 UBUS_METHOD("delete", rpc_uci_delete
, rpc_uci_delete_policy
),
1764 UBUS_METHOD("rename", rpc_uci_rename
, rpc_uci_rename_policy
),
1765 UBUS_METHOD("order", rpc_uci_order
, rpc_uci_order_policy
),
1766 UBUS_METHOD("changes", rpc_uci_changes
, rpc_uci_config_policy
),
1767 UBUS_METHOD("revert", rpc_uci_revert
, rpc_uci_config_policy
),
1768 UBUS_METHOD("commit", rpc_uci_commit
, rpc_uci_config_policy
),
1769 UBUS_METHOD("apply", rpc_uci_apply
, rpc_uci_apply_policy
),
1770 UBUS_METHOD("confirm", rpc_uci_confirm
, rpc_uci_rollback_policy
),
1771 UBUS_METHOD("rollback", rpc_uci_rollback
, rpc_uci_rollback_policy
),
1772 UBUS_METHOD_NOARG("reload_config", rpc_uci_reload
),
1775 static struct ubus_object_type uci_type
=
1776 UBUS_OBJECT_TYPE("luci-rpc-uci", uci_methods
);
1778 static struct ubus_object obj
= {
1781 .methods
= uci_methods
,
1782 .n_methods
= ARRAY_SIZE(uci_methods
),
1785 static struct rpc_session_cb cb
= {
1786 .cb
= rpc_uci_purge_savedir_cb
1789 cursor
= uci_alloc_context();
1792 return UBUS_STATUS_UNKNOWN_ERROR
;
1794 rpc_session_destroy_cb(&cb
);
1796 return ubus_add_object(ctx
, &obj
);