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2019-05-31VPP-1640 - Missing rules in vpp-selinux-policyBilly McFall1-0/+212
Add additional section to the SELinux documentation to describe how to collect debug information when SELinux issues are encountered. This is purely a documentation change. Note: Merged seperate from SELinux Policy change in case policy change needs to be cherry-picked to older releases. Change-Id: I7ba3d3c7d84171b503d956eb01e13a680b4d53fc Signed-off-by: Billy McFall <bmcfall@redhat.com>
2018-01-30VPP-899: Run VPP under SELinuxBilly McFall1-0/+294
Add an SELinux profile such that VPP can run under SELinux on RPM based platforms. The SELinux Policy is currently only implemented for RPM packages, specifically, Fedora, CentOS and RHEL. Doxygen User Documentation has been included (selinux_doc.md). Once some discussion on file locations has completed (see vpp-devlist), updates to the Debug CLI documentation will also need to be updated. Additional changes: Patch Set 2: - Rework selinux_doc.md such that each line is only 80 characters instead of each sentence on a line. Made additonal minor chnages to the text. - Update vHost Debug CLI documentation to reflex new socket location. Cleaned up some text from when I originally wrote it, to better reflex proper use. - Update exec Debug CLI documentation to be more inline with suggested helptext, added text regarding recommended script file location. - For Debian builds, create the /var/log/vpp/ directory. I don't use Debian very much, so please pay extra attention to build-data/platforms.mk and build-root/deb/debian/.gitignore. - Per discussion on VPP call, changed the default log location to /var/log/vpp/vpp.log. - Changed the socket location for vHost in AutoConfig to /var/run/vpp/. Patch Set 3: - Update selinux_doc.md based on comments. Change-Id: I400520dc33f1ca51012d09ef8fe5a7b7b96c631e Signed-off-by: Billy McFall <bmcfall@redhat.com>
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/*
 *------------------------------------------------------------------
 * sr_api.c - ipv6 segment routing api
 *
 * Copyright (c) 2016 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 <vnet/vnet.h>
#include <vnet/srv6/sr.h>
#include <vlibmemory/api.h>

#include <vnet/interface.h>
#include <vnet/api_errno.h>
#include <vnet/feature/feature.h>

#include <vnet/vnet_msg_enum.h>

#define vl_typedefs		/* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_typedefs

#define vl_endianfun		/* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_endianfun

/* instantiate all the print functions we know about */
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
#define vl_printfun
#include <vnet/vnet_all_api_h.h>
#undef vl_printfun

#include <vlibapi/api_helper_macros.h>

#define foreach_vpe_api_msg                             \
_(SR_LOCALSID_ADD_DEL, sr_localsid_add_del)             \
_(SR_POLICY_DEL, sr_policy_del)                         \
_(SR_STEERING_ADD_DEL, sr_steering_add_del)             \
_(SR_SET_ENCAP_SOURCE, sr_set_encap_source)             \
_(SR_LOCALSIDS_DUMP, sr_localsids_dump)
//_(SR_LOCALSID_BEHAVIORS, sr_localsid_behaviors_dump)

static void vl_api_sr_localsid_add_del_t_handler
  (vl_api_sr_localsid_add_del_t * mp)
{
  vl_api_sr_localsid_add_del_reply_t *rmp;
  int rv = 0;
/*
 * int sr_cli_localsid (char is_del, ip6_address_t *localsid_addr,
 *  char end_psp, u8 behavior, u32 sw_if_index, u32 vlan_index, u32 fib_table,
 *  ip46_address_t *nh_addr, void *ls_plugin_mem)
 */

  VALIDATE_SW_IF_INDEX (mp);

  rv = sr_cli_localsid (mp->is_del,
			(ip6_address_t *) & mp->localsid_addr,
			mp->end_psp,
			mp->behavior,
			ntohl (mp->sw_if_index),
			ntohl (mp->vlan_index),
			ntohl (mp->fib_table),
			(ip46_address_t *) & mp->nh_addr, NULL);

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_SR_LOCALSID_ADD_DEL_REPLY);
}

static void
vl_api_sr_policy_add_t_handler (vl_api_sr_policy_add_t * mp)
{
  vl_api_sr_policy_add_reply_t *rmp;
  ip6_address_t *segments = 0, *seg;
  ip6_address_t *this_address = (ip6_address_t *) mp->segments;

  int i;
  for (i = 0; i < mp->n_segments; i++)
    {
      vec_add2 (segments, seg, 1);
      clib_memcpy (seg->as_u8, this_address->as_u8, sizeof (*this_address));
      this_address++;
    }

/*
 * sr_policy_add (ip6_address_t *bsid, ip6_address_t *segments,
 *                u32 weight, u8 behavior, u32 fib_table, u8 is_encap)
 */
  int rv = 0;
  rv = sr_policy_add ((ip6_address_t *) & mp->bsid_addr,
		      segments,
		      ntohl (mp->weight),
		      mp->type, ntohl (mp->fib_table), mp->is_encap);

  REPLY_MACRO (VL_API_SR_POLICY_ADD_REPLY);
}

static void
vl_api_sr_policy_mod_t_handler (vl_api_sr_policy_mod_t * mp)
{
  vl_api_sr_policy_mod_reply_t *rmp;

  ip6_address_t *segments = 0, *seg;
  ip6_address_t *this_address = (ip6_address_t *) mp->segments;

  int i;
  for (i = 0; i < mp->n_segments; i++)
    {
      vec_add2 (segments, seg, 1);
      clib_memcpy (seg->as_u8, this_address->as_u8, sizeof (*this_address));
      this_address++;
    }

  int rv = 0;
/*
 * int
 * sr_policy_mod(ip6_address_t *bsid, u32 index, u32 fib_table,
 *               u8 operation, ip6_address_t *segments, u32 sl_index,
 *               u32 weight, u8 is_encap)
 */
  rv = sr_policy_mod ((ip6_address_t *) & mp->bsid_addr,
		      ntohl (mp->sr_policy_index),
		      ntohl (mp->fib_table),
		      mp->operation,
		      segments, ntohl (mp->sl_index), ntohl (mp->weight));

  REPLY_MACRO (VL_API_SR_POLICY_MOD_REPLY);
}

static void
vl_api_sr_policy_del_t_handler (vl_api_sr_policy_del_t * mp)
{
  vl_api_sr_policy_del_reply_t *rmp;
  int rv = 0;
/*
 * int
 * sr_policy_del (ip6_address_t *bsid, u32 index)
 */
  rv = sr_policy_del ((ip6_address_t *) & mp->bsid_addr,
		      ntohl (mp->sr_policy_index));

  REPLY_MACRO (VL_API_SR_POLICY_DEL_REPLY);
}

static void
vl_api_sr_set_encap_source_t_handler (vl_api_sr_set_encap_source_t * mp)
{
  vl_api_sr_set_encap_source_reply_t *rmp;
  int rv = 0;
  sr_set_source ((ip6_address_t *) & mp->encaps_source);

  REPLY_MACRO (VL_API_SR_POLICY_DEL_REPLY);
}

static void vl_api_sr_steering_add_del_t_handler
  (vl_api_sr_steering_add_del_t * mp)
{
  vl_api_sr_steering_add_del_reply_t *rmp;
  int rv = 0;
/*
 * int
 * sr_steering_policy(int is_del, ip6_address_t *bsid, u32 sr_policy_index,
 *  u32 table_id, ip46_address_t *prefix, u32 mask_width, u32 sw_if_index,
 *  u8 traffic_type)
 */

  VALIDATE_SW_IF_INDEX (mp);

  rv = sr_steering_policy (mp->is_del,
			   (ip6_address_t *) & mp->bsid_addr,
			   ntohl (mp->sr_policy_index),
			   ntohl (mp->table_id),
			   (ip46_address_t *) & mp->prefix_addr,
			   ntohl (mp->mask_width),
			   ntohl (mp->sw_if_index), mp->traffic_type);

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_SR_STEERING_ADD_DEL_REPLY);
}

static void send_sr_localsid_details
  (ip6_sr_localsid_t * t, vl_api_registration_t * reg, u32 context)
{
  vl_api_sr_localsids_details_t *rmp;

  rmp = vl_msg_api_alloc (sizeof (*rmp));
  memset (rmp, 0, sizeof (*rmp));
  rmp->_vl_msg_id = ntohs (VL_API_SR_LOCALSIDS_DETAILS);
  memcpy (rmp->address, &t->localsid, sizeof (ip6_address_t));
  rmp->end_psp = t->end_psp;
  rmp->behavior = htons (t->behavior);
  rmp->fib_table = htonl (t->fib_table);
  memcpy (rmp->xconnect_next_hop, &t->next_hop, sizeof (ip6_address_t));
  rmp->xconnect_iface_or_vrf_table = htonl (t->sw_if_index);
  rmp->context = context;

  vl_api_send_msg (reg, (u8 *) rmp);
}

static void vl_api_sr_localsids_dump_t_handler
  (vl_api_sr_localsids_dump_t * mp)
{
  vl_api_registration_t *reg;
  ip6_sr_main_t *sm = &sr_main;
  ip6_sr_localsid_t *t;

  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  /* *INDENT-OFF* */
  pool_foreach (t, sm->localsids,
  ({
    send_sr_localsid_details(t, reg, mp->context);
  }));
  /* *INDENT-ON* */
}


/*
 * sr_api_hookup
 * Add vpe's API message handlers to the table.
 * vlib has alread mapped shared memory and
 * added the client registration handlers.
 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
 */
#define vl_msg_name_crc_list
#include <vnet/vnet_all_api_h.h>
#undef vl_msg_name_crc_list

static void
setup_message_id_table (api_main_t * am)
{
#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
  foreach_vl_msg_name_crc_sr;
#undef _
}

static clib_error_t *
sr_api_hookup (vlib_main_t * vm)
{
  api_main_t *am = &api_main;

#define _(N,n)                                                  \
    vl_msg_api_set_handlers(VL_API_##N, #n,                     \
                           vl_api_##n##_t_handler,              \
                           vl_noop_handler,                     \
                           vl_api_##n##_t_endian,               \
                           vl_api_##n##_t_print,                \
                           sizeof(vl_api_##n##_t), 1);
  foreach_vpe_api_msg;
#undef _

  /*
   * Manually register the sr policy add msg, so we trace
   * enough bytes to capture a typical segment list
   */
  vl_msg_api_set_handlers (VL_API_SR_POLICY_ADD,
			   "sr_policy_add",
			   vl_api_sr_policy_add_t_handler,
			   vl_noop_handler,
			   vl_api_sr_policy_add_t_endian,
			   vl_api_sr_policy_add_t_print, 256, 1);

  /*
   * Manually register the sr policy mod msg, so we trace
   * enough bytes to capture a typical segment list
   */
  vl_msg_api_set_handlers (VL_API_SR_POLICY_MOD,
			   "sr_policy_mod",
			   vl_api_sr_policy_mod_t_handler,
			   vl_noop_handler,
			   vl_api_sr_policy_mod_t_endian,
			   vl_api_sr_policy_mod_t_print, 256, 1);

  /*
   * Set up the (msg_name, crc, message-id) table
   */
  setup_message_id_table (am);

  return 0;
}

VLIB_API_INIT_FUNCTION (sr_api_hookup);

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */