Documentation/networking/xfrm_sync.rst

1 .. SPDX-License-Identifier: GPL-2.0
21 This way a backup stays as closely up-to-date as an active member.
25 For this reason, we also add a nagle-like algorithm to restrict
28 These thresholds are set system-wide via sysctls or can be updated
32 - the lifetime byte counter
36 - the replay sequence for both inbound and outbound
39 ----------------------
41 nlmsghdr:aevent_id:optional-TLVs.
76 message (kernel<->user) as well the cause (config, query or event).
87 -----------------------------------------
91 This TLV carries the running/current counter for byte lifetime since
96 This TLV carries the running/current counter for replay sequence since
110 ---------------------------------------------
132 ----------------
134 a) XFRM_MSG_GETAE issued by user-->kernel.
140 The response will always have XFRMA_LTIME_VAL and XFRMA_REPLAY_VAL TLVs.
147 i) user --> kernel to configure a specific SA.
158 ii) kernel->user direction as a response to XFRM_MSG_GETAE
160 The response will always have XFRMA_LTIME_VAL and XFRMA_REPLAY_VAL TLVs.
165 iii) kernel->user to report as event if someone sets any values or
169      The message will always have XFRMA_LTIME_VAL and XFRMA_REPLAY_VAL TLVs.
171 iv) kernel->user to report event when replay threshold or a timeout
177 The message will always have XFRMA_LTIME_VAL and XFRMA_REPLAY_VAL TLVs.
180 --------------------------------
189 -JHS