proxmox-mirrors/mirror_frr
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_frr synced 2025-07-22 18:48:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

pimd: Add upstream children finding

Browse Source 
When we receive a *,g find all S,G that
are related and set pointer appropriately

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2016-08-02 11:21:49 -04:00
parent 2a05c94c91
commit cfa91a8733
1 changed files with 58 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
pimd/pim_upstream.c
View File

@ -50,6 +50,62 @@
static void join_timer_start(struct pim_upstream *up);
static void pim_upstream_update_assert_tracking_desired(struct pim_upstream *up);
/*
* A (*,G) or a (*,*) is going away
* remove the parent pointer from
* those pointing at us
*/
static void
pim_upstream_remove_children (struct pim_upstream *up)
{
struct listnode *ch_node;
struct pim_upstream *child;
// Basic sanity, (*,*) not currently supported
if ((up->sg.u.sg.src.s_addr == INADDR_ANY) &&
(up->sg.u.sg.grp.s_addr == INADDR_ANY))
return;
// Basic sanity (S,G) have no children
if ((up->sg.u.sg.src.s_addr != INADDR_ANY) &&
(up->sg.u.sg.grp.s_addr != INADDR_ANY))
return;
for (ALL_LIST_ELEMENTS_RO (qpim_upstream_list, ch_node, child))
{
if (child->parent == up)
child->parent = NULL;
}
}
/*
* A (*,G) or a (*,*) is being created
* Find the children that would point
* at us.
*/
static void
pim_upstream_find_new_children (struct pim_upstream *up)
{
struct pim_upstream *child;
struct listnode *ch_node;
if ((up->sg.u.sg.src.s_addr != INADDR_ANY) &&
(up->sg.u.sg.grp.s_addr != INADDR_ANY))
return;
if ((up->sg.u.sg.src.s_addr == INADDR_ANY) &&
(up->sg.u.sg.grp.s_addr == INADDR_ANY))
return;
for (ALL_LIST_ELEMENTS_RO (qpim_upstream_list, ch_node, child))
{
if ((up->sg.u.sg.grp.s_addr != INADDR_ANY) &&
(child->sg.u.sg.grp.s_addr == up->sg.u.sg.grp.s_addr) &&
(child != up))
child->parent = up;
}
}
/*
* If we have a (*,*) || (S,*) there is no parent
* If we have a (S,G), find the (*,G)
@ -99,6 +155,7 @@ void pim_upstream_delete(struct pim_upstream *up)
THREAD_OFF(up->t_ka_timer);
THREAD_OFF(up->t_rs_timer);
pim_upstream_remove_children (up);
upstream_channel_oil_detach(up);
/*
@ -378,6 +435,7 @@ static struct pim_upstream *pim_upstream_new(struct prefix *sg,
}
up->parent = pim_upstream_find_parent (sg);
pim_upstream_find_new_children (up);
up->flags = 0;
up->ref_count = 1;
up->t_join_timer = NULL;