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kernel-pfkey: Always register for events

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The starter-specific code path isn't necessary anymore since
d8fdd1018e16 ("starter: Don't flush SAs in the kernel").
This commit is contained in:
Tobias Brunner 2023-01-26 16:21:07 +01:00
parent 30cb3bd4d5
commit e323539428
1 changed files with 30 additions and 39 deletions
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69
src/libcharon/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
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@ -3303,7 +3303,6 @@ METHOD(kernel_ipsec_t, destroy, void,
kernel_pfkey_ipsec_t *kernel_pfkey_ipsec_create()
{
private_kernel_pfkey_ipsec_t *this;
bool register_for_events = TRUE;
int rcv_buffer;
INIT(this,
@ -3339,11 +3338,6 @@ kernel_pfkey_ipsec_t *kernel_pfkey_ipsec_create()
FALSE, lib->ns),
);
if (streq(lib->ns, "starter"))
{ /* starter has no threads, so we do not register for kernel events */
register_for_events = FALSE;
}
/* create a PF_KEY socket to communicate with the kernel */
this->socket = socket(PF_KEY, SOCK_RAW, PF_KEY_V2);
if (this->socket <= 0)
@ -3353,41 +3347,38 @@ kernel_pfkey_ipsec_t *kernel_pfkey_ipsec_create()
return NULL;
}
if (register_for_events)
/* create a PF_KEY socket for ACQUIRE & EXPIRE */
this->socket_events = socket(PF_KEY, SOCK_RAW, PF_KEY_V2);
if (this->socket_events <= 0)
{
/* create a PF_KEY socket for ACQUIRE & EXPIRE */
this->socket_events = socket(PF_KEY, SOCK_RAW, PF_KEY_V2);
if (this->socket_events <= 0)
{
DBG1(DBG_KNL, "unable to create PF_KEY event socket");
destroy(this);
return NULL;
}
rcv_buffer = lib->settings->get_int(lib->settings,
"%s.plugins.kernel-pfkey.events_buffer_size", 0, lib->ns);
if (rcv_buffer > 0)
{
if (setsockopt(this->socket_events, SOL_SOCKET, SO_RCVBUF,
&rcv_buffer, sizeof(rcv_buffer)) == -1)
{
DBG1(DBG_KNL, "unable to set receive buffer size on PF_KEY "
"event socket: %s", strerror(errno));
}
}
/* register the event socket */
if (register_pfkey_socket(this, SADB_SATYPE_ESP) != SUCCESS ||
register_pfkey_socket(this, SADB_SATYPE_AH) != SUCCESS)
{
DBG1(DBG_KNL, "unable to register PF_KEY event socket");
destroy(this);
return NULL;
}
lib->watcher->add(lib->watcher, this->socket_events, WATCHER_READ,
(watcher_cb_t)receive_events, this);
DBG1(DBG_KNL, "unable to create PF_KEY event socket");
destroy(this);
return NULL;
}
rcv_buffer = lib->settings->get_int(lib->settings,
"%s.plugins.kernel-pfkey.events_buffer_size", 0, lib->ns);
if (rcv_buffer > 0)
{
if (setsockopt(this->socket_events, SOL_SOCKET, SO_RCVBUF,
&rcv_buffer, sizeof(rcv_buffer)) == -1)
{
DBG1(DBG_KNL, "unable to set receive buffer size on PF_KEY "
"event socket: %s", strerror(errno));
}
}
/* register the event socket */
if (register_pfkey_socket(this, SADB_SATYPE_ESP) != SUCCESS ||
register_pfkey_socket(this, SADB_SATYPE_AH) != SUCCESS)
{
DBG1(DBG_KNL, "unable to register PF_KEY event socket");
destroy(this);
return NULL;
}
lib->watcher->add(lib->watcher, this->socket_events, WATCHER_READ,
(watcher_cb_t)receive_events, this);
return &this->public;
}