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2019-11-26fib: Table ReplaceNeale Ranns1-7/+0
Type: feature from the API doc, a table replace is: " The use-case is that, for some unspecified reason, the control plane has a very different set of entries it wants in the table than VPP currently has. The CP would thus like to 'replace' VPP's current table only by specifying what the new set of entries shall be, i.e. it is not going to delete anything that already eixts. the CP delcartes the start of this procedure with this begin_replace API Call, and when it has populated all the entries it wants, it calls the below end_replace API. From this point on it is of coursce free to add and delete entries as usual. The underlying mechanism by which VPP implements this replace is purposefully left unspecified. " In the FIB, the algorithm is implemented using mark and sweep. Algorithm goes: 1) replace_begin: this marks all the entries in that table as 'stale' 2) download all the entries that should be in this table - this clears the stale flag on those entries 3) signal the table converged: ip_table_replace_end - this removes all entries that are still stale this procedure can be used when an agent first connects to VPP, as an alternative to dump and diff state reconciliation. Change-Id: I168edec10cf7670866076b129ebfe6149ea8222e Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-10-23c11 safe string handling supportDave Barach1-1/+1
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-08-29Consolidate table->index conversion in fib-path CLI processingNeale Ranns1-19/+0
Change-Id: I221cebddc45efbfdec428b7df2af96e2aedff2dd Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-04-18typo fix: UNKOWN -> UNKNOWNAndrey "Zed" Zaikin1-1/+1
Change-Id: I008a4d7ad7160d1f07e7ceef712a5318a9368308 Signed-off-by: Andrey "Zed" Zaikin <zed.0xff@gmail.com>
2018-03-09MPLS Unifom modeNeale Ranns1-0/+3
- support both pipe and uniform modes for all MPLS LSP - all API programming for output-labels requires that the mode (and associated data) is specificed - API changes in MPLS, BIER and IP are involved - new DPO [sub] types for MPLS labels to handle the two modes. Change-Id: I87b76401e996f10dfbdbe4552ff6b19af958783c Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-12-20Fix MPLS local-label CLI help stringMarek Gradzki1-1/+1
CLI parsing code (unformat_fib_route_path) does not recognise 'resolve-via-connected'. However it understands 'resolve-via-attached'. Change-Id: I57e5eb75199cb8ae72c0fc8642a41f042b022201 Signed-off-by: Marek Gradzki <mgradzki@cisco.com>
2017-11-22Fix MPLS local-label CLINeale Ranns1-2/+2
Change-Id: Ia3d3d7a75282dc3073eaa83e49cef756db19874a Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-11-18unformat function for FIB pathsNeale Ranns1-154/+7
Change-Id: I32de25890ac0a643314f650591d2479879d9a2a6 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-09-19Fix MPLS table create CLINeale Ranns1-7/+2
Change-Id: I1f3c0f879f636e587aa518c41e5ad99af65129a7 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-09-13Add a name to the creation of an IP and MPLS tableNeale Ranns1-1/+4
Change-Id: I4b4648831551519b2ffb6f93255d28a4b8726c22 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-09-11FIB table add/delete APINeale Ranns1-4/+72
part 2; - this adds the code to create an IP and MPLS table via the API. - but the enforcement that the table must be created before it is used is still missing, this is so that CSIT can pass. Change-Id: Id124d884ade6cb7da947225200e3bb193454c555 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-08-09Allow multiple MPLS output labels to be passed on the CLINeale Ranns1-8/+25
Change-Id: Ib5af105e32b6b0df86923e189ab6bf6ee59de5b9 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-08-08L2 over MPLSNeale Ranns1-13/+23
[support for VPWS/VPLS] - switch to using dpo_proto_t rather than fib_protocol_t in fib_paths so that we can describe L2 paths - VLIB nodes to handle pop/push of MPLS labels to L2 Change-Id: Id050d06a11fd2c9c1c81ce5a0654e6c5ae6afa6e Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-06-10MPLS: cannot delete a path from the CLINeale Ranns1-13/+25
Change-Id: I7f85870ef99405727312a5de6839c8875c9fa1c5 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-04-11Remove usued, redundant and deprecated code from lookup.hNeale Ranns1-2/+2
Change-Id: Ic16bc10d0b2877b2afdf052615f9334f31b9519f Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-04-07MPLS McastNeale Ranns1-8/+9
1 - interface-DPO Used in the Data-plane to change a packet's input interface 2 - MPLS multicast FIB entry Same as a unicast entry but it links to a replicate not a load-balance DPO 3 - Multicast MPLS tunnel Update MPLS tunnels to use a FIB path-list to describe the endpoint[s]. Use the path-list to generate the forwarding chain (DPOs) to link to . 4 - Resolve a path via a local label (of an mLDP LSP) For IP multicast entries to use an LSP in the replication list, we need to decribe the 'resolve-via-label' where the label is that of a multicast LSP. 5 - MPLS disposition path sets RPF-ID For a interface-less LSP (i.e. mLDP not RSVP-TE) at the tail of the LSP we still need to perform an RPF check. An MPLS disposition DPO performs the MPLS pop validation checks and sets the RPF-ID in the packet. 6 - RPF check with per-entry RPF-ID An RPF-ID is used instead of a real interface SW if index in the case the IP traffic arrives from an LSP that does not have an associated interface. Change-Id: Ib92e177be919147bafeb599729abf3d1abc2f4b3 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-03-17MPLS performance improvments.Neale Ranns1-0/+8
1 - Quad loop lookup and label imposition. 2 - optimise imposition for the 1 label case 3 - input gets TTL from header directly (no byte swap) Change-Id: I59204c9e5d134b0df75d7afa43e360f946d1ffe7 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-02-22VPP-635: CLI Memory leak with invalid parameterBilly McFall1-0/+2
In the CLI parsing, below is a common pattern: /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "x")) x = 1; : else return clib_error_return (0, "unknown input `%U'", format_unformat_error, line_input); } unformat_free (line_input); The 'else' returns if an unknown string is encountered. There a memory leak because the 'unformat_free(line_input)' is not called. There is a large number of instances of this pattern. Replaced the previous pattern with: /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "x")) x = 1; : else { error = clib_error_return (0, "unknown input `%U'", format_unformat_error, line_input); goto done: } } /* ...Remaining code... */ done: unformat_free (line_input); return error; } In multiple files, 'unformat_free (line_input);' was never called, so there was a memory leak whether an invalid string was entered or not. Also, there were multiple instance where: error = clib_error_return (0, "unknown input `%U'", format_unformat_error, line_input); used 'input' as the last parameter instead of 'line_input'. The result is that output did not contain the substring in error, instead just an empty string. Fixed all of those as well. There are a lot of file, and very mind numbing work, so tried to keep it to a pattern to avoid mistakes. Change-Id: I8902f0c32a47dd7fb3bb3471a89818571702f1d2 Signed-off-by: Billy McFall <bmcfall@redhat.com> Signed-off-by: Dave Barach <dave@barachs.net>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+511
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>