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authorJames Chapman <jchapman@katalix.com>2010-04-02 02:18:54 -0400
committerDavid S. Miller <davem@davemloft.net>2010-04-03 17:56:04 -0400
commite0d4435f93905f517003cfa7328a36ea19788147 (patch)
treecdf858e601d993405d3fd1f318446dddbf9e6fcb /include/linux/if_pppox.h
parentf7faffa3ff8ef6ae712ef16312b8a2aa7a1c95fe (diff)
l2tp: Update PPP-over-L2TP driver to work over L2TPv3
This patch makes changes to the L2TP PPP code for L2TPv3. The existing code has some assumptions about the L2TP header which are broken by L2TPv3. Also the sockaddr_pppol2tp structure of the original code is too small to support the increased size of the L2TPv3 tunnel and session id, so a new sockaddr_pppol2tpv3 structure is needed. In the socket calls, the size of this structure is used to tell if the operation is for L2TPv2 or L2TPv3. Signed-off-by: James Chapman <jchapman@katalix.com> Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/if_pppox.h')
-rw-r--r--include/linux/if_pppox.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
index 90b5fae5d714..a6577af0c4e6 100644
--- a/include/linux/if_pppox.h
+++ b/include/linux/if_pppox.h
@@ -72,6 +72,15 @@ struct sockaddr_pppol2tp {
72 struct pppol2tp_addr pppol2tp; 72 struct pppol2tp_addr pppol2tp;
73}__attribute__ ((packed)); 73}__attribute__ ((packed));
74 74
75/* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
76 * bits. So we need a different sockaddr structure.
77 */
78struct sockaddr_pppol2tpv3 {
79 sa_family_t sa_family; /* address family, AF_PPPOX */
80 unsigned int sa_protocol; /* protocol identifier */
81 struct pppol2tpv3_addr pppol2tp;
82} __attribute__ ((packed));
83
75/********************************************************************* 84/*********************************************************************
76 * 85 *
77 * ioctl interface for defining forwarding of connections 86 * ioctl interface for defining forwarding of connections