62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
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#pragma once
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#include <stdint.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/logging.h>
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static inline void *msgb_l2tph(struct msgb *msg)
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{
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return msg->l2h;
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}
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static inline unsigned int msgb_l2tplen(const struct msgb *msg)
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{
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return msgb_l2len(msg);
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}
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/* identifiers of a peer on a L2TP connection */
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struct l2tpd_peer {
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char *host_name;
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uint32_t router_id;
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uint32_t ccid;
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};
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/* A L2P connection between two peers. exists once, contains many
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* sessions */
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struct l2tpd_connection {
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/* global list of connections */
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struct llist_head list;
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/* list of sessions in this conncetion */
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struct llist_head sessions;
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/* local and remote peer */
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struct l2tpd_peer local;
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struct l2tpd_peer remote;
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/* seq nr of next to-be-sent frame */
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uint16_t next_tx_seq_nr;
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/* seq nr of expected next Rx frame */
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uint16_t next_rx_seq_nr;
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};
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/* A L2TP session within a connection */
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struct l2tpd_session {
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/* our link into the connection.sessions */
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struct llist_head list;
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/* local session ID */
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uint32_t l_sess_id;
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/* remote session ID */
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uint32_t r_sess_id;
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/* pseudowire type */
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uint16_t pw_type;
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/* seq nr of next to-be-sent frame */
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uint32_t next_tx_seq_nr;
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/* seq nr of expected next Rx frame */
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uint32_t next_rx_seq_nr;
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/* TODO: sockets for TRAU and PCU */
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};
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enum {
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DL2TP,
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};
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