a58055d6b2
adj_delegate_adj_created() is incorrectly called when an existing adj is found and returned. This can lead to crashes in some cases in the pmtu delegate: (gdb) bt 0 0x00007f2aa8fc9ce1 in raise () from /lib/x86_64-linux-gnu/libc.so.6 1 0x00007f2aa8fb3537 in abort () from /lib/x86_64-linux-gnu/libc.so.6 2 0x0000564361b5403a in os_exit (code=code@entry=1) at ./src/vpp/vnet/main.c:437 3 0x00007f2aa9271a3e in unix_signal_handler (signum=11, si=<optimized out>, uc=<optimized out>) at ./src/vlib/unix/main.c:188 4 <signal handler called> 5 0x00007f2aa9970d5a in fib_table_get_table_id_for_sw_if_index (proto=FIB_PROTOCOL_IP4, sw_if_index=<optimized out>) at ./src/vnet/fib/fib_table.c:1156 6 0x00007f2aa964aebf in ip_pmtu_adj_delegate_adj_created (ai=8) at ./src/vnet/ip/ip_path_mtu.c:197 7 0x00007f2aa9993ee5 in adj_delegate_adj_created (ai=ai@entry=8) at ./src/vnet/adj/adj_delegate.c:166 8 0x00007f2aa998dbde in adj_mcast_add_or_lock (proto=proto@entry=FIB_PROTOCOL_IP6, link_type=link_type@entry=VNET_LINK_IP6, sw_if_index=sw_if_index@entry=7) at ./src/vnet/adj/adj_mcast.c:95 9 0x00007f2aa95c7b3e in ip6_link_enable (sw_if_index=7, link_local_addr=link_local_addr@entry=0x0) at ./src/vnet/ip/ip6_link.c:217 10 0x00007f2aa9621587 in vl_api_sw_interface_ip_enable_disable_t_handler (mp=0x7f2a4fa5ad10) at ./src/vnet/ip/ip_api.c:108 11 0x00007f2aaa3b7e44 in msg_handler_internal (free_it=0, do_it=1, trace_it=<optimized out>, msg_len=<optimized out>, the_msg=0x7f2a4fa5ad10, am=0x7f2aaa3cc020 <api_global_main>) at ./src/vlibapi/api_shared.c:593 12 vl_msg_api_handler_no_free (the_msg=0x7f2a4fa5ad10, msg_len=<optimized out>) at ./src/vlibapi/api_shared.c:810 13 0x00007f2aaa3a1702 in vl_socket_process_api_msg (rp=<optimized out>, input_v=<optimized out>) at ./src/vlibmemory/socket_api.c:208 14 0x00007f2aaa3a95d8 in vl_api_clnt_process (vm=<optimized out>, node=<optimized out>, f=<optimized out>) at ./src/vlibmemory/memclnt_api.c:429 15 0x00007f2aa9226f37 in vlib_process_bootstrap (_a=<optimized out>) at ./src/vlib/main.c:1235 16 0x00007f2aa91824a8 in clib_calljmp () at /builds/graphiant/graphnos/vpp/debian/output/source_dir/src/vppinfra/longjmp.S:123 17 0x00007f2a47cf5d60 in ?? () 18 0x00007f2aa922853f in vlib_process_startup (f=0x0, p=0x7f2a494dc000, vm=0x7f2a489ed680) at ./src/vlib/main.c:1260 19 dispatch_process (vm=0x7f2a489ed680, p=0x7f2a494dc000, last_time_stamp=<optimized out>, f=0x0) at ./src/vlib/main.c:1316 20 0x0000000000000000 in ?? () (gdb) Type: fix Change-Id: I2d3c041e0be8284471771c7882c89f743baab0e5 Signed-off-by: Peter Morrow <pdmorrow@gmail.com>
Vector Packet Processing
Introduction
The VPP platform is an extensible framework that provides out-of-the-box production quality switch/router functionality. It is the open source version of Cisco's Vector Packet Processing (VPP) technology: a high performance, packet-processing stack that can run on commodity CPUs.
The benefits of this implementation of VPP are its high performance, proven technology, its modularity and flexibility, and rich feature set.
For more information on VPP and its features please visit the FD.io website and What is VPP? pages.
Changes
Details of the changes leading up to this version of VPP can be found under doc/releasenotes.
Directory layout
| Directory name | Description |
|---|---|
| build-data | Build metadata |
| build-root | Build output directory |
| docs | Sphinx Documentation |
| dpdk | DPDK patches and build infrastructure |
| extras/libmemif | Client library for memif |
| src/examples | VPP example code |
| src/plugins | VPP bundled plugins directory |
| src/svm | Shared virtual memory allocation library |
| src/tests | Standalone tests (not part of test harness) |
| src/vat | VPP API test program |
| src/vlib | VPP application library |
| src/vlibapi | VPP API library |
| src/vlibmemory | VPP Memory management |
| src/vnet | VPP networking |
| src/vpp | VPP application |
| src/vpp-api | VPP application API bindings |
| src/vppinfra | VPP core library |
| src/vpp/api | Not-yet-relocated API bindings |
| test | Unit tests and Python test harness |
Getting started
In general anyone interested in building, developing or running VPP should consult the VPP wiki for more complete documentation.
In particular, readers are recommended to take a look at [Pulling, Building, Running, Hacking, Pushing](https://wiki.fd.io/view/VPP/Pulling,_Building,_Run ning,_Hacking_and_Pushing_VPP_Code) which provides extensive step-by-step coverage of the topic.
For the impatient, some salient information is distilled below.
Quick-start: On an existing Linux host
To install system dependencies, build VPP and then install it, simply run the
build script. This should be performed a non-privileged user with sudo
access from the project base directory:
./extras/vagrant/build.sh
If you want a more fine-grained approach because you intend to do some
development work, the Makefile in the root directory of the source tree
provides several convenience shortcuts as make targets that may be of
interest. To see the available targets run:
make
Quick-start: Vagrant
The directory extras/vagrant contains a VagrantFile and supporting
scripts to bootstrap a working VPP inside a Vagrant-managed Virtual Machine.
This VM can then be used to test concepts with VPP or as a development
platform to extend VPP. Some obvious caveats apply when using a VM for VPP
since its performance will never match that of bare metal; if your work is
timing or performance sensitive, consider using bare metal in addition or
instead of the VM.
For this to work you will need a working installation of Vagrant. Instructions for this can be found [on the Setting up Vagrant wiki page] (https://wiki.fd.io/view/DEV/Setting_Up_Vagrant).
More information
Several modules provide documentation, see @subpage user_doc for more end-user-oriented information. Also see @subpage dev_doc for developer notes.
Visit the VPP wiki for details on more advanced building strategies and other development notes.