While it really would be desirable to allow stream destruction during on_read()
callbacks, this does not work anymore since e49b2998. Until we have a proper
solution for this issue, use asynchronous disconnects for the only user doing
so.
Fixes#518.
Is a bit more memory efficient (also due to lazy instantiation) and
lookups for sections with lots of subsections/keys (e.g. charon.plugins) are
faster.
This now works because all plugins use the same config namespace.
If <ns>.load_modular is true, the list of plugins to load is determined
via the value of the <ns>.plugins.<name>.load options.
Using includes the following is possible:
charon {
load_modular = yes
plugins {
include strongswan.d/charon/*.conf
}
}
charon-cmd {
load_modular = yes
plugins {
include strongswan.d/charon-cmd/*.conf
}
}
Where each .conf file would contain something like:
<name> {
load = yes
<option> = <value>
}
To increase the priority of individual plugins load = <priority> can be
used (the default is 1). For instance, to use openssl instead of the
built-in crypto plugins set in strongswan.d/charon/openssl.conf:
openssl {
load = 10
}
If two plugins have the same priority their order in the default plugin
list is preserved. Plugins not found in that list are ordered
alphabetically before other plugins with the same priority.
If realloc return a pointer value different from the value to be
reallocated, a double free can occur in this context.
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
When acting on files, we can use fstat() to estimate the buffer size. On
non-file FDs, we dynamically increase an allocated buffer.
Additionally we slightly change the function signature to properly handle
zero-length files and add appropriate unit tests.
When changing async callbacks on streams, we have to make sure the watcher
callback is not currently active and has temporarily disabled callbacks. This
could have been the case, as we didn't explicitly removed any pending
watcher registration if both callbacks are NULL.
By enforcing the watcher unregistration, we are sure the watcher callback is
not active and currently is not mangling the callback hooks. This should make
sure we avoid any races for the callback variables.
If a proposal string cannot be matched to a token using strcmp (e.g. if
you want to register a whole class of algorithms containing their ID,
like my_alg_2342), you can use the provided function to register a
parser that transforms the given string into a proposal token.
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
Tobias Brunner