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scan-build from clang-9 has reported following:
libubox/list.h:83:22: warning: Use of memory after it is freed
entry->next->prev = entry->prev;
^~~~~~~~~~~
ubusd_event.c:42:3: warning: Use of memory after it is freed
ubusd_delete_event_source(ev);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Which might be a false positives, but in order to make the code pass the
static analyzer checks, rewrite the while loops on lists with the safe
list iterator.
Signed-off-by: Petr Štetiar <ynezz@true.cz>
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clang-9 on x86/64 has reported following warnings/errors:
libubus-acl.c:123:2: error: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Werror,-Wsign-compare]
libubus-io.c:108:18: error: comparison of integers of different signs: 'int' and 'size_t' (aka 'unsigned long') [-Werror,-Wsign-compare]
libubus-io.c:395:56: error: comparison of integers of different signs: 'ssize_t' (aka 'long') and 'size_t' (aka 'unsigned long') [-Werror,-Wsign-compare]
libubus-req.c:441:4: error: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Werror,-Wsign-compare]
ubusd_acl.c:119:18: error: comparison of integers of different signs: 'int' and 'unsigned long' [-Werror,-Wsign-compare]
ubusd_acl.c:152:5: error: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Werror,-Wsign-compare]
ubusd_acl.c:348:3: error: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Werror,-Wsign-compare]
ubusd_acl.c:352:3: error: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Werror,-Wsign-compare]
ubusd_acl.c:357:3: error: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Werror,-Wsign-compare]
ubusd_acl.c:362:3: error: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Werror,-Wsign-compare]
ubusd_acl.c:367:3: error: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Werror,-Wsign-compare]
ubusd_acl.c:447:16: error: comparison of integers of different signs: 'int' and '__size_t' (aka 'unsigned long') [-Werror,-Wsign-compare]
ubusd_acl.c:502:18: error: comparison of integers of different signs: 'int' and 'unsigned long' [-Werror,-Wsign-compare]
ubusd.c:123:13: error: comparison of integers of different signs: 'int' and 'unsigned long' [-Werror,-Wsign-compare]
ubusd.c:170:15: error: comparison of integers of different signs: 'int' and 'unsigned long' [-Werror,-Wsign-compare]
ubusd.c:262:43: error: comparison of integers of different signs: 'int' and 'unsigned long' [-Werror,-Wsign-compare]
ubusd.c:287:30: error: comparison of integers of different signs: 'int' and 'unsigned long' [-Werror,-Wsign-compare]
ubusd_event.c:170:18: error: comparison of integers of different signs: 'int' and 'unsigned long' [-Werror,-Wsign-compare]
ubusd_obj.c:71:2: error: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Werror,-Wsign-compare]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
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Adds event send access list support in ubus via the "send" keyword
Example of a json file:
{
"user": "superuser",
"send": [ "wireless.*" ],
}
Signed-off-by: Koen Dergent <koen.cj.dergent@gmail.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
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Adds event listen access list support in ubus via the "listen" keyword
Example of a json file:
{
"user": "superuser",
"listen": [ "network.*" ],
}
Signed-off-by: Koen Dergent <koen.cj.dergent@gmail.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
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Rename strmatch_len into ubus_strmatch_len and move it to ubus_common.h
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
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This makes it clear that `ubus_msg_send()` is only
about sending and queue-ing messages, and has nothing
to do with free-ing.
It can be a bit misleading/confusing when trying to go
through the code and make assumptions about whether a
buffer is free'd in ubus_send_msg(), or is free'd outside.
In `ubusd_proto_receive_message()` the `ubus_msg_free()`
is now called before the `if (ret == -1)` check.
That way, all callbacks will have their messages free'd,
which is what's desired, but confusing, because:
* ubusd_handle_invoke() called ubus_msg_free() before returning -1
* ubusd_handle_notify() called ubus_msg_free() before returning -1
* ubusd_handle_response() called ubus_msg_send(,,free=true) before returning -1
* ubus_msg_send() would call ubus_msg_send(,,free=false)
* all other callback callers would `ubus_msg_send(,,free=true)`
(free the buffers in ubus_msg_send() )
In all other places, where `ubus_msg_send(,,free=true)`
an explicit `ubus_msg_free()` was added.
Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
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Signed-off-by: John Crispin <blogic@openwrt.org>
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Signed-off-by: John Crispin <blogic@openwrt.org>
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Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
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registering events, even if it is just *
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