lupine/hide-eid
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Reorganise so we have wrapper, unwraper and hide-eid.

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unwrapper and hide-eid don't work yet, of course.
This commit is contained in:
Nick Thomas
2013-08-06 15:20:48 +01:00
parent 202b77bb57
commit 13090d3c75
9 changed files with 391 additions and 180 deletions
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61
pass-1/util.c
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@@ -1,4 +1,5 @@
#include "util.h"
#include "rlocs.h"
#include <unistd.h>
#include <sys/types.h>
@@ -79,4 +80,64 @@ int link_set_up( char *link_name, int state )
return 1;
}
int session_setup( struct session *session, char *config_file, char *listen_if, char *output_if )
{
memset( &session, 0, sizeof( struct session ) );
session->listen_if = -1;
session->output_if = -1;
session->rlocs = rlocs_new( config_file );
if ( session->rlocs == NULL ) {
warn( "Failed to get config from %s", config_file );
return 0;
}
rlocs_debug_output( session->rlocs );
// TODO: We can scale the tun architecture by using multiqueue and having
// a bunch of workers, rather than this noddy scheme. If we don't jump
// directly to something saner, anyway...
session->listen_if = create_tun( listen_if );
if ( session->listen_if == -1 ) {
warn( "Error opening %s for listening", listen_if );
rlocs_free( session->rlocs );
return 0;
}
link_set_up( listen_if, 1 );
if ( strcmp( listen_if, output_if ) == 0 ) {
session->same_if = 1;
session->output_if = session->listen_if;
} else {
session->same_if = 0;
session->output_if = create_tun( output_if );
if ( session->output_if == -1 ) {
warn( "Error opening %s for outputting", output_if );
rlocs_free( session->rlocs );
close( session->listen_if );
return 0;
}
link_set_up( output_if, 1 );
}
return 1;
}
void session_teardown( struct session *session )
{
rlocs_free( session->rlocs );
if ( session->listen_if >= 0 ) {
close( session->listen_if );
}
if ( session->output_if >= 0 && !session->same_if ) {
close( session->output_if );
}
}