This rework separates l3nhg functionality from the nexthop
tracking code, by introducing two bgp_nhg.[ch] files. The
calling functions are renamed from bgp_l3nhg* to bgp_nhg*.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Again the dest pointer should be still locked by the table walk. Ensure
that coverity is happy that this is not happening.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Again coverity believes that dest may be freed but it should not
be because of how locking is done. Make coverity happy.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This is based on @donaldsharp's work
The current code base is the struct bgp_node data structure.
The problem with this is that it creates a bunch of
extra data per route_node.
The table structure generates ‘holder’ nodes
that are never going to receive bgp routes,
and now the memory of those nodes is allocated
as if they are a full bgp_node.
After splitting up the bgp_node into bgp_dest and route_node,
the memory of ‘holder’ node which does not have any bgp data
will be allocated as the route_node, not the bgp_node,
and the memory usage is reduced.
The memory usage of BGP node will be reduced from 200B to 96B.
The total memory usage optimization of this part is ~16.00%.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Signed-off-by: Yuqing Zhao <xiaopanghu99@163.com>
Even if some of the attributes in bgp_path_info_extra are
not used, their memory is still allocated every time. It
cause a waste of memory.
This commit code deletes all unnecessary attributes and
changes the optional attributes to pointer storage. Memory
will only be allocated when they are actually used. After
optimization, extra info related memory is reduced by about
half(~400B -> ~200B).
Signed-off-by: Valerian_He <1826906282@qq.com>
update_type1_routes_for_evi() is called from
L3VNI/L2VNI up event, if ESI is not UP then
do not advertise EAD-ES Type-1 route.
Just like from multiple places EAD-ES route
origination checks for its oper status.
Ticket:#3413454
Issue:3413454
Signed-off-by: Trey Aspelund <taspelund@nvidia.com>
Signed-off-by: Chirag Shah <chirag@nvidia.com>
Effectively a massive search and replace of
`struct thread` to `struct event`. Using the
term `thread` gives people the thought that
this event system is a pthread when it is not
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Add a hash_clean_and_free() function as well as convert
the code to use it. This function also takes a double
pointer to the hash to set it NULL. Also it cleanly
does nothing if the pointer is NULL( as a bunch of
code tested for ).
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Crash:
(gdb) bt
0 0x00007fee27de15cb in raise () from /lib/x86_64-linux-gnu/libpthread.so.0
1 0x00007fee280ecd9c in core_handler (signo=11, siginfo=0x7ffe56001bb0, context=<optimized out>) at lib/sigevent.c:264
2 <signal handler called>
3 0x0000555e321c41b2 in prefix_rd2str (prd=0x10, buf=buf@entry=0x7ffe56002080 "27.0.0.R\340\373\062\062^U", size=size@entry=28) at bgpd/bgp_rd.c:168
4 0x0000555e321c431a in printfrr_prd (buf=0x7ffe560021a0, ea=<optimized out>, ptr=<optimized out>) at bgpd/bgp_rd.c:224
5 0x00007fee2812069b in vbprintfrr (cb_in=cb_in@entry=0x7ffe56002330, fmt0=fmt0@entry=0x555e3229a3ad " RD: %pRD\n", ap=ap@entry=0x7ffe560023d8) at lib/printf/vfprintf.c:564
6 0x00007fee28122ef7 in vasnprintfrr (mt=mt@entry=0x7fee281cb5e0 <MTYPE_VTY_OUT_BUF>, out=out@entry=0x7ffe560023f0 " RD: : R\n", outsz=outsz@entry=1024, fmt=fmt@entry=0x555e3229a3ad " RD: %pRD\n", ap=ap@entry=0x7ffe560023d8) at lib/printf/glue.c:103
7 0x00007fee28103504 in vty_out (vty=vty@entry=0x555e33f82d10, format=format@entry=0x555e3229a3ad " RD: %pRD\n") at lib/vty.c:190
8 0x0000555e32185156 in bgp_evpn_es_show_entry_detail (vty=0x555e33f82d10, es=0x555e33c38420, json=<optimized out>) at bgpd/bgp_evpn_mh.c:2655
9 0x0000555e32188fe5 in bgp_evpn_es_show (vty=vty@entry=0x555e33f82d10, uj=false, detail=true) at bgpd/bgp_evpn_mh.c:2721
notice prd=0x10 in #3. This is because in bgp_evpn_mh.c we are sending &es->es_base_frag->prd.
There is one spot in the code where during output the es->es_base_frag is checked for non nullness
Let's just make sure it's right in all the places.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
The bgp_evpn_es_evi_show_entry() function tries to access the vni
attribute, while the vpn structure may be null.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
RD may be built based on an AS number. Like for the AS, the RD
may use the AS notation. The two below examples can illustrate:
RD 1.1:20 stands for an AS4B:NN RD with AS4B=65536 in dot format.
RD 0.1:20 stands for an AS2B:NNNN RD with AS2B=0.1 in dot+ format.
This commit adds the asnotation mode to prefix_rd2str() API so as
to pick up the relevant display.
Two new printfrr extensions are available to display the RD with
the two above display methods.
- The pRDD extension stands for dot asnotation format
- The pRDE extension stands for dot+ asnotation format.
- The pRD extension has been renamed to pRDP extension
The code is changed each time '%pRD' printf extension is called.
Possibly, the asnotation may change the output, then a macro defines
the asnotation mode to use. A side effect of forging the mode to
use is that the string could not be concatenated with other strings
in vty_out and snprintfrr. Those functions have been called multiple
times. When zlog_debug needs to display the RD with some other string,
the prefix_rd2str() old API is used instead of the printf extension.
Some code has been kept untouched:
- code related to running-config. Actually, wherever an RD is displayed,
its configured name should be dumped.
- bgp rfapi code
- bgp evpn multihoming code (partially done), since the logic is
missing to get the asnotation of 'struct bgp_evpn_es'.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
These two functions always return 0. As such any and all
tests against this make no sense. Remove the return 0
to a void and follow the chain, logically, to remove all
the dead code.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
The default vrf in bgp when created, ends up having the
bgp->name as NULL. This of course crashes the ilk
of `json_object_string_add` when a NULL is passed in.
Go through all the places in bgp_evpn_mh.c and fix
so that it doesn't crash.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Use %pI4/%pI6 where possible, otherwise at least atjust stack buffer sizes
for inet_ntop() calls.
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
Re-work the bgp vni table to use separately keyed tables for type2
routes.
So, with type2 routes, we have the main table keyed off of the IP and a
new MAC table keyed off of MACs.
By separating out the two, we are able to run path selection separately
for the neigh and mac. Keeping the two separate is also more in-line
with what happens in zebra (they are managed comptletely seperate).
With this change type2 routes go into each table like so:
```
Remote MAC-IP -> IP Table & MAC Table
Remote MAC -> MAC Table
Local MAC-IP -> IP Table
Local MAC -> MAC Table
```
The difference for local is necessary because we should not ever allow
multiple paths for a local MAC.
Also cleaned up the commands for querying the vni tables:
```
show bgp vni all type ...
show bgp vni VNI type ...
```
Old commands will be deprecated in a separate commit.
Signed-off-by: Stephen Worley <sworley@nvidia.com>
Use the IP addr of type2/macip routes only for the hash/key
of the VNI table and carry the MAC in a path_info_extra attribute.
There is exists situations that can be hit during extended MAC mobility events
where two MACs could be pointing to the same IP in our global table. It
is requires very specific timings.
When that happens, BPG would (because we key'd on both MAC and IP)
install both into it's VNI table as separate entries, but zebra only
knows/needs to know about a single IP -> MAC relationship for it's VNI
table's type2 routes. So it was compleletly undeterministic which one
zebra would end up with in these timing situations.
With these changes, we move BGP's VNI table to key'd the same as Zebra's
and now a single IP will have multiple path_info's with a path_info_extra
that is carrying the MAC info for each path.
BGP will then run best path to deterministically decide which one to send to
zebra during the occasions where there exist's two possible MACs.
Signed-off-by: Stephen Worley <sworley@nvidia.com>
Let's convert to our actual library call instead
of using yet another abstraction that makes it fun
for people to switch daemons.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Just convert all uses of thread_cancel to THREAD_OFF. Additionally
use THREAD_ARG instead of t->arg to get the arguement. Individual
files should never be accessing thread private data like this.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
The "add" parameter of `bgp_evpn_mh_route_update()` makes no sense.
Just remove it to clarify this function, and remove the relevant check
with "add" as well.
Signed-off-by: anlan_cs <vic.lan@pica8.com>
Fix NULL deference issue in log. And change one word - "vtep",
it should be with lowercase letters like other places.
Signed-off-by: anlan_cs <vic.lan@pica8.com>
Remove unnecessary `install_l3nhg` knob because it has already
been controlled by the command: "[no$no] use-es-l3nhg".
Signed-off-by: anlan_cs <vic.lan@pica8.com>
