sharpd: Add Super Happy Advanced Routing Protocol

Add a daemon that will allow us to test the zapi
as well as test route install/removal times from
the kernel.

The current commands are:

install route <starting ip address> nexthop <nexthop> (1-1000000)

This command starts installing at <starting ip address>/32
(1-100000) routes that it auto-increments by 1
Installation start time is noted in the log and finish
time is noted as well.

remove routes <starting ip address> (1-1000000)

This command removes routes at <starting ip address>/32
and removes (1-100000) routes created by the install route
command.

This code can be considered experimental and *is not*
something that should be run in a production environment.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

Makefile.am

@@ -53,6 +53,7 @@ include nhrpd/subdir.am
 include ldpd/subdir.am
 include babeld/subdir.am
 include eigrpd/subdir.am
+include sharpd/subdir.am
 include pimd/subdir.am
 
 SUBDIRS = . @LIBRFP@ @RFPTEST@ \

configure.ac

@@ -201,6 +201,7 @@ else
    fi
 fi
 AM_CONDITIONAL([DEV_BUILD], [test "x$enable_dev_build" = "xyes"])
+AM_CONDITIONAL([SHARPD], [test "x$enable_dev_build" = "xyes"])
 
 dnl always want these CFLAGS
 AC_C_FLAG([-fno-omit-frame-pointer])

lib/log.c

@@ -1045,6 +1045,8 @@ int proto_redistnum(int afi, const char *s)
 			return ZEBRA_ROUTE_NHRP;
 		else if (strmatch(s, "babel"))
 			return ZEBRA_ROUTE_BABEL;
+		else if (strmatch(s, "sharp"))
+			return ZEBRA_ROUTE_SHARP;
 	}
 	if (afi == AFI_IP6) {
 		if (strmatch(s, "kernel"))
@@ -1071,6 +1073,8 @@ int proto_redistnum(int afi, const char *s)
 			return ZEBRA_ROUTE_NHRP;
 		else if (strmatch(s, "babel"))
 			return ZEBRA_ROUTE_BABEL;
+		else if (strmatch(s, "sharp"))
+			return ZEBRA_ROUTE_SHARP;
 	}
 	return -1;
 }

lib/route_types.txt

@@ -77,6 +77,7 @@ ZEBRA_ROUTE_BGP_DIRECT, bgp-direct, NULL,  'b', 0, 0, "BGP-Direct"
 #  bgp unicast -> vnc 
 ZEBRA_ROUTE_BGP_DIRECT_EXT, bgp-direct-to-nve-groups, NULL, 'e', 0, 0, "BGP2VNC"
 ZEBRA_ROUTE_BABEL,      babel,     babeld, 'A', 1, 1, "Babel"
+ZEBRA_ROUTE_SHARP,    sharp,     sharpd, 'D', 1, 1, "SHARP"
 ZEBRA_ROUTE_ALL,        wildcard,  none,   '-', 0, 0, "-"
 
 
@@ -101,3 +102,4 @@ ZEBRA_ROUTE_TABLE,  "Non-main Kernel Routing Table"
 ZEBRA_ROUTE_LDP,    "Label Distribution Protocol (LDP)"
 ZEBRA_ROUTE_VNC_DIRECT,    "VNC direct (not via zebra) routes"
 ZEBRA_ROUTE_BABEL,  "Babel routing protocol (Babel)"
+ZEBRA_ROUTE_SHARP, "Super Happy Advanced Routing Protocol (sharpd)"

redhat/daemons

@@ -49,6 +49,7 @@ pimd=no
 nhrpd=no
 eigrpd=no
 babeld=no
+sharpd=no
 #
 # Command line options for the daemons
 #
@@ -64,6 +65,7 @@ pimd_options=("-A 127.0.0.1")
 nhrpd_options=("-A 127.0.0.1")
 eigrpd_options=("-A 127.0.0.1")
 babeld_options=("-A 127.0.0.1")
+sharpd_options=("-A 127.0.0.1")
 
 #
 # If the vtysh_enable is yes, then the unified config is read

sharpd/sharp_main.c

@@ -0,0 +1,162 @@
+/*
+ * SHARP - main code
+ * Copyright (C) Cumulus Networks, Inc.
+ *               Donald Sharp
+ *
+ * This file is part of FRR.
+ *
+ * FRR is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * FRR is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <zebra.h>
+
+#include <lib/version.h>
+#include "getopt.h"
+#include "thread.h"
+#include "prefix.h"
+#include "linklist.h"
+#include "if.h"
+#include "vector.h"
+#include "vty.h"
+#include "command.h"
+#include "filter.h"
+#include "plist.h"
+#include "stream.h"
+#include "log.h"
+#include "memory.h"
+#include "privs.h"
+#include "sigevent.h"
+#include "zclient.h"
+#include "keychain.h"
+#include "distribute.h"
+#include "libfrr.h"
+#include "routemap.h"
+
+#include "sharp_zebra.h"
+#include "sharp_vty.h"
+
+uint32_t total_routes = 0;
+uint32_t installed_routes = 0;
+uint32_t removed_routes = 0;
+
+zebra_capabilities_t _caps_p[] = {
+	ZCAP_NET_RAW, ZCAP_BIND, ZCAP_NET_ADMIN,
+};
+
+struct zebra_privs_t sharp_privs = {
+#if defined(FRR_USER) && defined(FRR_GROUP)
+	.user = FRR_USER,
+	.group = FRR_GROUP,
+#endif
+#if defined(VTY_GROUP)
+	.vty_group = VTY_GROUP,
+#endif
+	.caps_p = _caps_p,
+	.cap_num_p = array_size(_caps_p),
+	.cap_num_i = 0};
+
+struct option longopts[] = {{0}};
+
+/* Master of threads. */
+struct thread_master *master;
+
+/* SIGHUP handler. */
+static void sighup(void)
+{
+	zlog_info("SIGHUP received");
+}
+
+/* SIGINT / SIGTERM handler. */
+static void sigint(void)
+{
+	zlog_notice("Terminating on signal");
+
+	exit(0);
+}
+
+/* SIGUSR1 handler. */
+static void sigusr1(void)
+{
+	zlog_rotate();
+}
+
+struct quagga_signal_t sharp_signals[] = {
+	{
+		.signal = SIGHUP,
+		.handler = &sighup,
+	},
+	{
+		.signal = SIGUSR1,
+		.handler = &sigusr1,
+	},
+	{
+		.signal = SIGINT,
+		.handler = &sigint,
+	},
+	{
+		.signal = SIGTERM,
+		.handler = &sigint,
+	},
+};
+
+#define SHARP_VTY_PORT 2614
+
+FRR_DAEMON_INFO(sharpd, SHARP, .vty_port = SHARP_VTY_PORT,
+
+		.proghelp = "Implementation of a Sharp of routes daemon.",
+
+		.signals = sharp_signals,
+		.n_signals = array_size(sharp_signals),
+
+		.privs = &sharp_privs, )
+
+extern void sharp_vty_init(void);
+
+int main(int argc, char **argv, char **envp)
+{
+	frr_preinit(&sharpd_di, argc, argv);
+	frr_opt_add("", longopts, "");
+
+	while (1) {
+		int opt;
+
+		opt = frr_getopt(argc, argv, NULL);
+
+		if (opt == EOF)
+			break;
+
+		switch (opt) {
+		case 0:
+			break;
+		default:
+			frr_help_exit(1);
+			break;
+		}
+	}
+
+	master = frr_init();
+
+	vrf_init(NULL, NULL, NULL, NULL);
+
+	sharp_zebra_init();
+
+	/* Get configuration file. */
+	sharp_vty_init();
+
+	frr_config_fork();
+	frr_run(master);
+
+	/* Not reached. */
+	return 0;
+}

sharpd/sharp_vty.c

@@ -0,0 +1,114 @@
+/*
+ * SHARP - vty code
+ * Copyright (C) Cumulus Networks, Inc.
+ *               Donald Sharp
+ *
+ * This file is part of FRR.
+ *
+ * FRR is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * FRR is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <zebra.h>
+
+#include "vty.h"
+#include "command.h"
+#include "prefix.h"
+#include "nexthop.h"
+#include "log.h"
+
+#include "sharpd/sharp_zebra.h"
+#include "sharpd/sharp_vty.h"
+#include "sharpd/sharp_vty_clippy.c"
+
+extern uint32_t total_routes;
+extern uint32_t installed_routes;
+extern uint32_t removed_routes;
+
+DEFPY (install_routes,
+       install_routes_cmd,
+       "install routes A.B.C.D$start nexthop A.B.C.D$nexthop (1-1000000)$routes",
+       "install some routes\n"
+       "Routes to install\n"
+       "Address to start /32 generation at\n"
+       "Nexthop to use\n"
+       "Nexthop address\n"
+       "How many to create\n")
+{
+	int i;
+	struct prefix p;
+	struct nexthop nhop;
+	uint32_t temp;
+
+	total_routes = routes;
+	installed_routes = 0;
+
+	memset(&p, 0, sizeof(p));
+	memset(&nhop, 0, sizeof(nhop));
+
+	p.family = AF_INET;
+	p.prefixlen = 32;
+	p.u.prefix4 = start;
+
+	nhop.gate.ipv4 = nexthop;
+	nhop.type = NEXTHOP_TYPE_IPV4;
+
+	zlog_debug("Inserting %ld routes", routes);
+
+	temp = ntohl(p.u.prefix4.s_addr);
+	for (i = 0 ; i < routes ; i++) {
+		route_add(&p, &nhop);
+		p.u.prefix4.s_addr = htonl(++temp);
+	}
+
+	return CMD_SUCCESS;
+}
+
+DEFPY (remove_routes,
+       remove_routes_cmd,
+       "remove routes A.B.C.D$start (1-1000000)$routes",
+       "Remove some routes\n"
+       "Routes to remove\n"
+       "Starting spot\n"
+       "Routes to uniinstall\n")
+{
+	int i;
+	struct prefix p;
+	uint32_t temp;
+
+	total_routes = routes;
+	removed_routes = 0;
+
+	memset(&p, 0, sizeof(p));
+
+	p.family = AF_INET;
+	p.prefixlen = 32;
+	p.u.prefix4 = start;
+
+	zlog_debug("Removing %ld routes", routes);
+
+	temp = ntohl(p.u.prefix4.s_addr);
+	for (i = 0; i < routes ; i++) {
+		route_delete(&p);
+		p.u.prefix4.s_addr = htonl(++temp);
+	}
+
+	return CMD_SUCCESS;
+}
+
+void sharp_vty_init(void)
+{
+	install_element(ENABLE_NODE, &install_routes_cmd);
+	install_element(ENABLE_NODE, &remove_routes_cmd);
+	return;
+}

sharpd/sharp_vty.h

@@ -0,0 +1,26 @@
+/*
+ * VTY library for SHARP
+ * Copyright (C) Cumulus Networks, Inc.
+ *               Donald Sharp
+ *
+ * This file is part of FRR.
+ *
+ * FRR is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * FRR is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef __SHARP_VTY_H__
+#define __SHARP_VTY_H__
+
+extern void sharp_vty_init(void);
+#endif