diff options
| author |   Pim van Pelt <pim@ipng.nl> | 2023-10-06 11:26:33 +0200 |
|---|---|---|
| committer |   Matthew Smith <mgsmith@netgate.com> | 2024-01-10 14:49:25 +0000 |
| commit | 2c9b128e1b3732f9dd62699922480f9206a02b2d (patch) | |
| tree | c298875846843f34828269346adaa02f160e3e15 /src/plugins/linux-cp/lcp.h | |
| parent | 2fa69effc844d7a27d46c0f163c0840df961eb2d (diff) | |
linux-cp: Fix looping netlink messages
Signal when consuming a batch of netlink messages, in order to inhibit
lcp_sync from generating new netlink messages. This avoids link up/down
state changess from triggering an infinite loop.
Do this in the regular case of nl_route_process_msgs()
and in the special case of re-synchronizing in lcp_nl_recv_dump_replies().
Type: fix
Change-Id: I419d3f9aa350c119b3778b644c65165cb4cc1bef
Signed-off-by: Pim van Pelt <pim@ipng.nl>
Diffstat (limited to 'src/plugins/linux-cp/lcp.h')
| -rw-r--r-- | src/plugins/linux-cp/lcp.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/plugins/linux-cp/lcp.h b/src/plugins/linux-cp/lcp.h index 4ddaa3898d6..3b6b4ec00d4 100644 --- a/src/plugins/linux-cp/lcp.h +++ b/src/plugins/linux-cp/lcp.h @@ -29,6 +29,8 @@ typedef struct lcp_main_s u8 del_static_on_link_down; /* Delete static routes when link goes down */ u8 del_dynamic_on_link_down; /* Delete dynamic routes when link goes down */ u8 test_mode; /* Set when Unit testing */ + u8 netlink_processing_active; /* Set while a batch of Netlink messages are + being processed */ } lcp_main_t; extern lcp_main_t lcp_main; @@ -52,6 +54,13 @@ u8 lcp_get_del_static_on_link_down (void); void lcp_set_del_dynamic_on_link_down (u8 is_del); u8 lcp_get_del_dynamic_on_link_down (void); +/** + * Get/Set when we're processing a batch of netlink messages. + * This is used to avoid looping messages between lcp-sync and netlink. + */ +void lcp_set_netlink_processing_active (u8 is_processing); +u8 lcp_get_netlink_processing_active (void); + #endif /* |