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bgpd: introduce [no] debug bgp flowspec
It is possible to enhance debug bgp flowspec feature by using vty command. This command, if enabled, will dump the match/set couple of information received on NLRI. Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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@ -42,6 +42,7 @@
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#include "bgpd/bgp_ecommunity.h"
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#include "bgpd/bgp_label.h"
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#include "bgpd/bgp_evpn.h"
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#include "bgpd/bgp_flowspec.h"
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unsigned long conf_bgp_debug_as4;
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unsigned long conf_bgp_debug_neighbor_events;
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@ -56,6 +57,7 @@ unsigned long conf_bgp_debug_allow_martians;
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unsigned long conf_bgp_debug_nht;
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unsigned long conf_bgp_debug_update_groups;
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unsigned long conf_bgp_debug_vpn;
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unsigned long conf_bgp_debug_flowspec;
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unsigned long term_bgp_debug_as4;
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unsigned long term_bgp_debug_neighbor_events;
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@ -70,6 +72,7 @@ unsigned long term_bgp_debug_allow_martians;
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unsigned long term_bgp_debug_nht;
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unsigned long term_bgp_debug_update_groups;
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unsigned long term_bgp_debug_vpn;
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unsigned long term_bgp_debug_flowspec;
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struct list *bgp_debug_neighbor_events_peers = NULL;
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struct list *bgp_debug_keepalive_peers = NULL;
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@ -1688,6 +1691,7 @@ DEFUN (no_debug_bgp,
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TERM_DEBUG_OFF(vpn, VPN_LEAK_TO_VRF);
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TERM_DEBUG_OFF(vpn, VPN_LEAK_RMAP_EVENT);
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TERM_DEBUG_OFF(vpn, VPN_LEAK_LABEL);
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TERM_DEBUG_OFF(flowspec, FLOWSPEC);
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vty_out(vty, "All possible debugging has been turned off\n");
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return CMD_SUCCESS;
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@ -1758,6 +1762,8 @@ DEFUN_NOSH (show_debugging_bgp,
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vty_out(vty, " BGP vpn route-map event debugging is on\n");
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if (BGP_DEBUG(vpn, VPN_LEAK_LABEL))
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vty_out(vty, " BGP vpn label event debugging is on\n");
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if (BGP_DEBUG(flowspec, FLOWSPEC))
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vty_out(vty, " BGP flowspec debugging is on\n");
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vty_out(vty, "\n");
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return CMD_SUCCESS;
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@ -1811,6 +1817,8 @@ int bgp_debug_count(void)
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ret++;
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if (BGP_DEBUG(vpn, VPN_LEAK_LABEL))
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ret++;
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if (BGP_DEBUG(flowspec, FLOWSPEC))
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ret++;
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return ret;
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}
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@ -1904,6 +1912,10 @@ static int bgp_config_write_debug(struct vty *vty)
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vty_out(vty, "debug bgp vpn label\n");
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write++;
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}
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if (CONF_BGP_DEBUG(flowspec, FLOWSPEC)) {
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vty_out(vty, "debug bgp flowspec\n");
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write++;
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}
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return write;
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}
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@ -2204,7 +2216,17 @@ const char *bgp_debug_rdpfxpath2str(afi_t afi, safi_t safi,
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prefix_rd2str(prd, rd_buf, sizeof(rd_buf)),
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prefix2str(pu, pfx_buf, sizeof(pfx_buf)), tag_buf,
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pathid_buf, afi2str(afi), safi2str(safi));
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else
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else if (safi == SAFI_FLOWSPEC) {
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char return_string[BGP_FLOWSPEC_NLRI_STRING_MAX];
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const struct prefix_fs *fs = pu.fs;
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bgp_fs_nlri_get_string((unsigned char *)fs->prefix.ptr,
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fs->prefix.prefixlen,
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return_string,
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NLRI_STRING_FORMAT_DEBUG);
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snprintf(str, size, "FS %s Match{%s}", afi2str(afi),
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return_string);
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} else
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snprintf(str, size, "%s%s%s %s %s",
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prefix2str(pu, pfx_buf, sizeof(pfx_buf)), tag_buf,
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pathid_buf, afi2str(afi), safi2str(safi));
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@ -73,6 +73,7 @@ extern unsigned long conf_bgp_debug_allow_martians;
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extern unsigned long conf_bgp_debug_nht;
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extern unsigned long conf_bgp_debug_update_groups;
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extern unsigned long conf_bgp_debug_vpn;
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extern unsigned long conf_bgp_debug_flowspec;
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extern unsigned long term_bgp_debug_as4;
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extern unsigned long term_bgp_debug_neighbor_events;
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@ -85,6 +86,7 @@ extern unsigned long term_bgp_debug_allow_martians;
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extern unsigned long term_bgp_debug_nht;
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extern unsigned long term_bgp_debug_update_groups;
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extern unsigned long term_bgp_debug_vpn;
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extern unsigned long term_bgp_debug_flowspec;
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extern struct list *bgp_debug_neighbor_events_peers;
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extern struct list *bgp_debug_keepalive_peers;
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@ -117,6 +119,7 @@ struct bgp_debug_filter {
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#define BGP_DEBUG_VPN_LEAK_TO_VRF 0x02
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#define BGP_DEBUG_VPN_LEAK_RMAP_EVENT 0x04
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#define BGP_DEBUG_VPN_LEAK_LABEL 0x08
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#define BGP_DEBUG_FLOWSPEC 0x01
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#define BGP_DEBUG_PACKET_SEND 0x01
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#define BGP_DEBUG_PACKET_SEND_DETAIL 0x02
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@ -28,6 +28,8 @@
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#include "bgpd/bgp_flowspec.h"
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#include "bgpd/bgp_flowspec_util.h"
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#include "bgpd/bgp_flowspec_private.h"
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#include "bgpd/bgp_ecommunity.h"
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#include "bgpd/bgp_debug.h"
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static int bgp_fs_nlri_validate(uint8_t *nlri_content, uint32_t len)
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{
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@ -143,6 +145,35 @@ int bgp_nlri_parse_flowspec(struct peer *peer, struct attr *attr,
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temp = XCALLOC(MTYPE_TMP, psize);
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memcpy(temp, pnt, psize);
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p.u.prefix_flowspec.ptr = (uintptr_t) temp;
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if (BGP_DEBUG(flowspec, FLOWSPEC)) {
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char return_string[BGP_FLOWSPEC_NLRI_STRING_MAX];
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char local_string[BGP_FLOWSPEC_NLRI_STRING_MAX];
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char ec_string[BGP_FLOWSPEC_NLRI_STRING_MAX];
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char *s = NULL;
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bgp_fs_nlri_get_string((unsigned char *)
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p.u.prefix_flowspec.ptr,
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p.u.prefix_flowspec.prefixlen,
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return_string,
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NLRI_STRING_FORMAT_MIN);
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snprintf(ec_string, BGP_FLOWSPEC_NLRI_STRING_MAX,
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"EC{none}");
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if (attr && attr->ecommunity) {
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s = ecommunity_ecom2str(attr->ecommunity,
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ECOMMUNITY_FORMAT_ROUTE_MAP, 0);
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snprintf(ec_string,
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BGP_FLOWSPEC_NLRI_STRING_MAX,
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"EC{%s}",
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s == NULL ? "none" : s);
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}
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snprintf(local_string, BGP_FLOWSPEC_NLRI_STRING_MAX,
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"FS Rx %s %s %s %s", withdraw ?
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"Withdraw":"Update",
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afi2str(afi), return_string,
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attr != NULL ? ec_string : "");
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zlog_info("%s", local_string);
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}
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/* Process the route. */
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if (!withdraw)
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ret = bgp_update(peer, &p, 0, attr,
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@ -29,6 +29,7 @@
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#include "bgpd/bgp_flowspec.h"
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#include "bgpd/bgp_flowspec_util.h"
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#include "bgpd/bgp_flowspec_private.h"
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#include "bgpd/bgp_debug.h"
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/* Local Structures and variables declarations
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* This code block hosts the struct declared that host the flowspec rules
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@ -271,6 +272,43 @@ int bgp_show_table_flowspec(struct vty *vty, struct bgp *bgp, afi_t afi,
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return CMD_SUCCESS;
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}
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DEFUN (debug_bgp_flowspec,
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debug_bgp_flowspec_cmd,
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"debug bgp flowspec",
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DEBUG_STR
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BGP_STR
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"BGP allow flowspec debugging entries\n")
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{
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if (vty->node == CONFIG_NODE)
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DEBUG_ON(flowspec, FLOWSPEC);
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else {
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TERM_DEBUG_ON(flowspec, FLOWSPEC);
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vty_out(vty, "BGP flowspec debugging is on\n");
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}
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return CMD_SUCCESS;
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}
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DEFUN (no_debug_bgp_flowspec,
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no_debug_bgp_flowspec_cmd,
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"no debug bgp flowspec",
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NO_STR
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DEBUG_STR
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BGP_STR
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"BGP allow flowspec debugging entries\n")
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{
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if (vty->node == CONFIG_NODE)
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DEBUG_OFF(flowspec, FLOWSPEC);
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else {
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TERM_DEBUG_OFF(flowspec, FLOWSPEC);
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vty_out(vty, "BGP flowspec debugging is off\n");
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}
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return CMD_SUCCESS;
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}
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void bgp_flowspec_vty_init(void)
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{
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install_element(ENABLE_NODE, &debug_bgp_flowspec_cmd);
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install_element(CONFIG_NODE, &debug_bgp_flowspec_cmd);
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install_element(ENABLE_NODE, &no_debug_bgp_flowspec_cmd);
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install_element(CONFIG_NODE, &no_debug_bgp_flowspec_cmd);
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}
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