diff options
Diffstat (limited to 'src/plugins/gbp/gbp_itf.c')
| -rw-r--r-- | src/plugins/gbp/gbp_itf.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/src/plugins/gbp/gbp_itf.c b/src/plugins/gbp/gbp_itf.c new file mode 100644 index 00000000000..39a1124bba2 --- /dev/null +++ b/src/plugins/gbp/gbp_itf.c @@ -0,0 +1,212 @@ +/* + * Copyright (c) 2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <plugins/gbp/gbp_itf.h> + +/** + * Attributes and configurations attached to interfaces by GBP + */ +typedef struct gbp_itf_t_ +{ + /** + * Number of references to this interface + */ + u32 gi_locks; + + u32 gi_sw_if_index; + u32 gi_bd_index; + + /** + * L2/L3 Features configured by each user + */ + u32 *gi_l2_input_fbs; + u32 gi_l2_input_fb; + u32 *gi_l2_output_fbs; + u32 gi_l2_output_fb; +} gbp_itf_t; + +static gbp_itf_t *gbp_itfs; + +static gbp_itf_t * +gbp_itf_get (index_t gii) +{ + vec_validate (gbp_itfs, gii); + + return (&gbp_itfs[gii]); +} + +static index_t +gbp_itf_get_itf (u32 sw_if_index) +{ + return (sw_if_index); +} + +index_t +gbp_itf_add_and_lock (u32 sw_if_index, u32 bd_index) +{ + gbp_itf_t *gi; + + gi = gbp_itf_get (gbp_itf_get_itf (sw_if_index)); + + if (0 == gi->gi_locks) + { + gi->gi_sw_if_index = sw_if_index; + gi->gi_bd_index = bd_index; + + if (~0 != gi->gi_bd_index) + set_int_l2_mode (vlib_get_main (), vnet_get_main (), + MODE_L2_BRIDGE, sw_if_index, bd_index, + L2_BD_PORT_TYPE_NORMAL, 0, 0); + + } + + gi->gi_locks++; + + return (sw_if_index); +} + +void +gbp_itf_unlock (index_t gii) +{ + gbp_itf_t *gi; + + gi = gbp_itf_get (gii); + ASSERT (gi->gi_locks > 0); + gi->gi_locks--; + + if (0 == gi->gi_locks) + { + if (~0 != gi->gi_bd_index) + set_int_l2_mode (vlib_get_main (), vnet_get_main (), MODE_L3, + gi->gi_sw_if_index, 0, L2_BD_PORT_TYPE_NORMAL, 0, 0); + vec_free (gi->gi_l2_input_fbs); + vec_free (gi->gi_l2_output_fbs); + + memset (gi, 0, sizeof (*gi)); + } +} + +void +gbp_itf_set_l2_input_feature (index_t gii, + index_t useri, l2input_feat_masks_t feats) +{ + u32 diff_fb, new_fb, *fb, feat; + gbp_itf_t *gi; + + gi = gbp_itf_get (gii); + + if (gi->gi_bd_index == ~0) + return; + + vec_validate (gi->gi_l2_input_fbs, useri); + gi->gi_l2_input_fbs[useri] = feats; + + new_fb = 0; + vec_foreach (fb, gi->gi_l2_input_fbs) + { + new_fb |= *fb; + } + + /* add new features */ + diff_fb = (gi->gi_l2_input_fb ^ new_fb) & new_fb; + + /* *INDENT-OFF* */ + foreach_set_bit (feat, diff_fb, + ({ + l2input_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 1); + })); + /* *INDENT-ON* */ + + /* remove unneeded features */ + diff_fb = (gi->gi_l2_input_fb ^ new_fb) & gi->gi_l2_input_fb; + + /* *INDENT-OFF* */ + foreach_set_bit (feat, diff_fb, + ({ + l2input_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 0); + })); + /* *INDENT-ON* */ + + gi->gi_l2_input_fb = new_fb; +} + +void +gbp_itf_set_l2_output_feature (index_t gii, + index_t useri, l2output_feat_masks_t feats) +{ + u32 diff_fb, new_fb, *fb, feat; + gbp_itf_t *gi; + + gi = gbp_itf_get (gii); + + if (gi->gi_bd_index == ~0) + return; + + vec_validate (gi->gi_l2_output_fbs, useri); + gi->gi_l2_output_fbs[useri] = feats; + + new_fb = 0; + vec_foreach (fb, gi->gi_l2_output_fbs) + { + new_fb |= *fb; + } + + /* add new features */ + diff_fb = (gi->gi_l2_output_fb ^ new_fb) & new_fb; + + /* *INDENT-OFF* */ + foreach_set_bit (feat, diff_fb, + ({ + l2output_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 1); + })); + /* *INDENT-ON* */ + + /* remove unneeded features */ + diff_fb = (gi->gi_l2_output_fb ^ new_fb) & gi->gi_l2_output_fb; + + /* *INDENT-OFF* */ + foreach_set_bit (feat, diff_fb, + ({ + l2output_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 0); + })); + /* *INDENT-ON* */ + + gi->gi_l2_output_fb = new_fb; +} + +u8 * +format_gbp_itf (u8 * s, va_list * args) +{ + index_t gii = va_arg (*args, index_t); + gbp_itf_t *gi; + + gi = gbp_itf_get (gii); + + s = format (s, "%U locks:%d input-feats:%U output-feats:%U", + format_vnet_sw_if_index_name, vnet_get_main (), + gi->gi_sw_if_index, gi->gi_locks, format_l2_input_features, + gi->gi_l2_input_fb, format_l2_output_features, + gi->gi_l2_output_fb); + + return (s); +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |