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authorLinus Nordberg <linus@nordu.net>2010-09-29 10:53:01 +0200
committerLinus Nordberg <linus@nordu.net>2010-09-29 10:53:01 +0200
commite2633633030e62994ca41ff62006e3e40517c73a (patch)
tree60d68506aac2dd1499f19f766c8fc5a26a96a231 /lib/radsec.c
parent7ef1fda097c5c96e201d50db2892d1c2354eb6d4 (diff)
WIP -- resolving, crafting packet.
Diffstat (limited to 'lib/radsec.c')
-rw-r--r--lib/radsec.c102
1 files changed, 88 insertions, 14 deletions
diff --git a/lib/radsec.c b/lib/radsec.c
index 309c305..97f62e6 100644
--- a/lib/radsec.c
+++ b/lib/radsec.c
@@ -5,6 +5,7 @@
#include <libgen.h>
#include <freeradius/libradius.h>
+#include <event2/util.h>
#include "libradsec.h"
#include "libradsec-impl.h"
@@ -84,7 +85,6 @@ int rs_conn_create(struct rs_handle *ctx, struct rs_connection **conn)
{
memset (c, 0, sizeof(struct rs_connection));
c->ctx = ctx;
- c->peers.next = &c->peers;
}
if (conn)
*conn = c;
@@ -92,30 +92,70 @@ int rs_conn_create(struct rs_handle *ctx, struct rs_connection **conn)
}
struct addrinfo *
-_resolv (const char *host, int port)
+_resolv (struct rs_connection *conn, const char *hostname, int port)
{
- return NULL;
+ int err;
+ char portstr[6];
+ struct evutil_addrinfo hints, *res = NULL;
+
+ snprintf (portstr, sizeof(portstr), "%d", port);
+ memset (&hints, 0, sizeof(struct evutil_addrinfo));
+ //hints.ai_family = AF_UNSPEC; /* v4 or v6. */
+ hints.ai_family = AF_INET; /* FIXME: v4 only, while debuging */
+ hints.ai_flags = AI_ADDRCONFIG;
+ switch (conn->type)
+ {
+ case RS_CONN_TYPE_NONE:
+ rs_conn_err_push_fl (conn, RSE_INVALID_CONN, __FILE__, __LINE__, NULL);
+ return NULL;
+ case RS_CONN_TYPE_TCP:
+ case RS_CONN_TYPE_TLS:
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_protocol = IPPROTO_TCP;
+ break;
+ case RS_CONN_TYPE_UDP:
+ case RS_CONN_TYPE_DTLS:
+ hints.ai_socktype = SOCK_DGRAM;
+ hints.ai_protocol = IPPROTO_UDP;
+ break;
+ }
+ err = evutil_getaddrinfo (hostname, portstr, &hints, &res);
+ if (err)
+ rs_conn_err_push_fl (conn, RSE_BADADDR, __FILE__, __LINE__,
+ " %s:%d: bad host name or port (%s)",
+ hostname, port, evutil_gai_strerror(err));
+ return res; /* Simply use first result. */
}
-int rs_conn_add_server(struct rs_connection *conn, struct rs_peer **server, rs_conn_type_t type, const char *host, int port)
+int
+rs_conn_add_server(struct rs_connection *conn, struct rs_peer **server,
+ rs_conn_type_t type, const char *hostname, int port)
{
struct rs_peer *srv;
+ struct evutil_addrinfo *addr;
if (conn->type == RS_CONN_TYPE_NONE)
conn->type = type;
else if (conn->type != type)
return rs_conn_err_push (conn, RSE_CONN_TYPE_MISMATCH, NULL);
+ addr = _resolv (conn, hostname, port);
+ if (!addr)
+ return -1;
+
srv = (struct rs_peer *) malloc (sizeof(struct rs_peer));
if (srv)
{
memset (srv, 0, sizeof(struct rs_peer));
srv->conn = conn;
- srv->addr = _resolv (host, port);
+ srv->addr = addr;
srv->timeout = 10;
srv->tries = 3;
- srv->next = conn->peers.next;
- conn->peers.next = srv;
+ srv->next = conn->peers;
+ if (conn->peers)
+ conn->peers->next = srv;
+ else
+ conn->peers = srv;
}
if (*server)
*server = srv;
@@ -141,16 +181,27 @@ int rs_server_set_secret(struct rs_peer *server, const char *secret)
return RSE_OK;
}
-int rs_conn_add_listener(struct rs_connection *conn, rs_conn_type_t type, const char *host, int port)
+int rs_conn_add_listener(struct rs_connection *conn, rs_conn_type_t type, const char *hostname, int port)
{
return rs_conn_err_push_fl (conn, RSE_NOSYS, __FILE__, __LINE__,
"%s: NYI", __func__);
}
-int rs_conn_destroy(struct rs_connection *conn)
+
+void
+rs_conn_destroy(struct rs_connection *conn)
{
- return rs_conn_err_push_fl (conn, RSE_NOSYS, __FILE__, __LINE__,
- "%s: NYI", __func__);
+ struct rs_peer *p;
+
+#warning "TODO: Disconnect active_peer."
+
+ for (p = conn->peers; p; p = p->next)
+ {
+ if (p->addr)
+ evutil_freeaddrinfo (p->addr);
+ if (p->secret)
+ rs_free (conn->ctx, p->secret);
+ }
}
int rs_conn_set_eventbase(struct rs_connection *conn, struct event_base *eb)
@@ -177,8 +228,31 @@ int rs_conn_get_current_server(struct rs_connection *conn, const char *name, siz
"%s: NYI", __func__);
}
-int rs_conn_open(struct rs_connection *conn)
+/* Non-public. */
+int
+rs_conn_open(struct rs_connection *conn)
{
- return rs_conn_err_push_fl (conn, RSE_NOSYS, __FILE__, __LINE__,
- "%s: NYI", __func__);
+ int s;
+ struct rs_peer *p;
+
+ if (conn->active_peer)
+ return RSE_OK;
+ p = conn->peers;
+ if (!p)
+ return rs_conn_err_push_fl (conn, RSE_NOPEER, __FILE__, __LINE__, NULL);
+
+ s = socket (p->addr->ai_family, p->addr->ai_socktype, p->addr->ai_protocol);
+ if (s < 0)
+ return rs_conn_err_push_fl (conn, RSE_SOME_ERROR, __FILE__, __LINE__,
+ strerror (errno));
+ if (connect (s, p->addr->ai_addr, p->addr->ai_addrlen))
+ {
+ /* TODO: handle nonblocking sockets (EINTR, EAGAIN). */
+ EVUTIL_CLOSESOCKET (s);
+ return rs_conn_err_push_fl (conn, RSE_SOME_ERROR, __FILE__, __LINE__,
+ strerror (errno));
+ }
+ p->s = s;
+ conn->active_peer = p;
+ return RSE_OK;
}