/
vty_cli_cmds.c
2169 lines (1818 loc) · 64 KB
/
vty_cli_cmds.c
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/*
* Copyright (C) 2010-2019 Red Hat, Inc. All rights reserved.
*
* Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
* Federico Simoncelli <fsimon@kronosnet.org>
*
* This software licensed under GPL-2.0+, LGPL-2.0+
*/
#include "config.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include "cfg.h"
#include "etherfilter.h"
#include "logging.h"
#include "libnozzle.h"
#include "netutils.h"
#include "vty.h"
#include "vty_cli.h"
#include "vty_cli_cmds.h"
#include "vty_utils.h"
#define KNET_VTY_MAX_MATCHES 64
#define KNET_VTY_MATCH_HELP 0
#define KNET_VTY_MATCH_EXEC 1
#define KNET_VTY_MATCH_EXPAND 2
#define CMDS_PARAM_NOMORE 0
#define CMDS_PARAM_KNET 1
#define CMDS_PARAM_IP 2
#define CMDS_PARAM_IP_PREFIX 3
#define CMDS_PARAM_IP_PORT 4
#define CMDS_PARAM_BOOL 5
#define CMDS_PARAM_INT 6
#define CMDS_PARAM_NODEID 7
#define CMDS_PARAM_NAME 8
#define CMDS_PARAM_MTU 9
#define CMDS_PARAM_CRYPTO_MODEL 10
#define CMDS_PARAM_CRYPTO_TYPE 11
#define CMDS_PARAM_HASH_TYPE 12
#define CMDS_PARAM_POLICY 13
#define CMDS_PARAM_LINK_ID 14
#define CMDS_PARAM_LINK_PRI 15
#define CMDS_PARAM_LINK_KEEPAL 16
#define CMDS_PARAM_LINK_HOLDTI 17
#define CMDS_PARAM_LINK_PONG 18
#define CMDS_PARAM_VTY_TIMEOUT 19
#define CMDS_PARAM_PMTU_FREQ 20
#define CMDS_PARAM_LINK_TRANSP 21
static const char file_newline[] = { '\n', 0x0 };
/*
* CLI helper functions - menu/node stuff starts below
*/
/*
* return 0 if we find a command in vty->line and cmd/len/no are set
* return -1 if we cannot find a command. no can be trusted. cmd/len would be empty
*/
static int get_command(struct knet_vty *vty, char **cmd, int *cmdlen, int *cmdoffset, int *no)
{
int start = 0, idx;
for (idx = 0; idx < vty->line_idx; idx++) {
if (vty->line[idx] != ' ')
break;
}
if (!strncmp(&vty->line[idx], "no ", 3)) {
*no = 1;
idx = idx + 3;
for (; idx < vty->line_idx; idx++) {
if (vty->line[idx] != ' ')
break;
}
} else {
*no = 0;
}
start = idx;
if (start == vty->line_idx)
return -1;
*cmd = &vty->line[start];
*cmdoffset = start;
for (idx = start; idx < vty->line_idx; idx++) {
if (vty->line[idx] == ' ')
break;
}
*cmdlen = idx - start;
return 0;
}
/*
* still not sure why I need to count backwards...
*/
static void get_n_word_from_end(struct knet_vty *vty, int n,
char **word, int *wlen, int *woffset)
{
int widx;
int idx, end, start;
start = end = vty->line_idx;
for (widx = 0; widx < n; widx++) {
for (idx = start - 1; idx > 0; idx--) {
if (vty->line[idx] != ' ')
break;
}
end = idx;
for (idx = end; idx > 0; idx--) {
if (vty->line[idx-1] == ' ')
break;
}
start = idx;
}
*wlen = (end - start) + 1;
*word = &vty->line[start];
*woffset = start;
}
static int expected_params(const vty_param_t *params)
{
int idx = 0;
while(params[idx].param != CMDS_PARAM_NOMORE)
idx++;
return idx;
}
static int count_words(struct knet_vty *vty,
int offset)
{
int idx, widx = 0;
int status = 0;
for (idx = offset; idx < vty->line_idx; idx++) {
if (vty->line[idx] == ' ') {
status = 0;
continue;
}
if ((vty->line[idx] != ' ') && (!status)) {
widx++;
status = 1;
continue;
}
}
return widx;
}
static int param_to_int(const char *param, int paramlen)
{
char buf[KNET_VTY_MAX_LINE];
memset(buf, 0, sizeof(buf));
memmove(buf, param, paramlen);
return atoi(buf);
}
static int param_to_str(char *buf, int bufsize, const char *param, int paramlen)
{
if (bufsize < paramlen)
return -1;
memset(buf, 0, bufsize);
memmove(buf, param, paramlen);
return paramlen;
}
static const vty_node_cmds_t *get_cmds(struct knet_vty *vty, char **cmd, int *cmdlen, int *cmdoffset)
{
int no;
const vty_node_cmds_t *cmds = knet_vty_nodes[vty->node].cmds;
get_command(vty, cmd, cmdlen, cmdoffset, &no);
if (no)
cmds = knet_vty_nodes[vty->node].no_cmds;
return cmds;
}
static int check_param(struct knet_vty *vty, const int paramtype, char *param, int paramlen)
{
int err = 0;
char buf[KNET_VTY_MAX_LINE];
int tmp;
memset(buf, 0, sizeof(buf));
switch(paramtype) {
case CMDS_PARAM_NOMORE:
break;
case CMDS_PARAM_KNET:
if (paramlen >= IFNAMSIZ) {
knet_vty_write(vty, "interface name too long%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_IP:
break;
case CMDS_PARAM_IP_PREFIX:
break;
case CMDS_PARAM_IP_PORT:
tmp = param_to_int(param, paramlen);
if ((tmp < 0) || (tmp > 65279)) {
knet_vty_write(vty, "port number must be a value between 0 and 65279%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_BOOL:
break;
case CMDS_PARAM_INT:
break;
case CMDS_PARAM_NODEID:
tmp = param_to_int(param, paramlen);
if ((tmp < 0) || (tmp > 255)) {
knet_vty_write(vty, "node id must be a value between 0 and 255%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_NAME:
if (paramlen >= KNET_MAX_HOST_LEN) {
knet_vty_write(vty, "name cannot exceed %d char in len%s", KNET_MAX_HOST_LEN - 1, telnet_newline);
}
break;
case CMDS_PARAM_MTU:
tmp = param_to_int(param, paramlen);
if ((tmp < 576) || (tmp > 65536)) {
knet_vty_write(vty, "mtu should be a value between 576 and 65536 (note: max value depends on the media)%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_PMTU_FREQ:
tmp = param_to_int(param, paramlen);
if ((tmp < 5) || (tmp > 600)) {
knet_vty_write(vty, "PMTUd frequency should be a value between 5 and 600%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_CRYPTO_MODEL:
param_to_str(buf, KNET_VTY_MAX_LINE, param, paramlen);
if (!strncmp("none", buf, 4))
break;
if (!strncmp("nss", buf, 3))
break;
knet_vty_write(vty, "unknown encryption model: %s. Supported: none/nss%s", param, telnet_newline);
err = -1;
break;
case CMDS_PARAM_CRYPTO_TYPE:
param_to_str(buf, KNET_VTY_MAX_LINE, param, paramlen);
if (!strncmp("none", buf, 4))
break;
if (!strncmp("aes256", buf, 6))
break;
if (!strncmp("aes192", buf, 6))
break;
if (!strncmp("aes128", buf, 6))
break;
if (!strncmp("3des", buf, 4))
break;
knet_vty_write(vty, "unknown encryption method: %s. Supported: none/aes256/aes192/aes128/3des%s", param, telnet_newline);
err = -1;
break;
case CMDS_PARAM_HASH_TYPE:
param_to_str(buf, KNET_VTY_MAX_LINE, param, paramlen);
if (!strncmp("none", buf, 4))
break;
if (!strncmp("md5", buf, 3))
break;
if (!strncmp("sha1", buf, 4))
break;
if (!strncmp("sha256", buf, 6))
break;
if (!strncmp("sha384", buf, 6))
break;
if (!strncmp("sha512", buf, 6))
break;
knet_vty_write(vty, "unknown hash method: %s. Supported none/md5/sha1/sha256/sha384/sha512%s", param, telnet_newline);
err = -1;
break;
case CMDS_PARAM_POLICY:
param_to_str(buf, KNET_VTY_MAX_LINE, param, paramlen);
if (!strncmp("passive", buf, 7))
break;
if (!strncmp("active", buf, 6))
break;
if (!strncmp("round-robin", buf, 11))
break;
knet_vty_write(vty, "unknown switching policy: %s. Supported passive/active/round-robin%s", param, telnet_newline);
err = -1;
break;
case CMDS_PARAM_LINK_ID:
tmp = param_to_int(param, paramlen);
if ((tmp < 0) || (tmp > 7)) {
knet_vty_write(vty, "link id should be a value between 0 and 7%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_LINK_TRANSP:
param_to_str(buf, KNET_VTY_MAX_LINE, param, paramlen);
if (knet_get_transport_id_by_name(buf) == KNET_MAX_TRANSPORTS) {
knet_vty_write(vty, "link transport is invalid%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_LINK_PRI:
tmp = param_to_int(param, paramlen);
if ((tmp < 0) || (tmp > 255)) {
knet_vty_write(vty, "link priority should be a value between 0 and 256%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_LINK_KEEPAL:
tmp = param_to_int(param, paramlen);
if ((tmp <= 0) || (tmp > 60000)) {
knet_vty_write(vty, "link keepalive should be a value between 0 and 60000 (milliseconds). Default: 1000%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_LINK_HOLDTI:
tmp = param_to_int(param, paramlen);
if ((tmp <= 0) || (tmp > 60000)) {
knet_vty_write(vty, "link holdtimer should be a value between 0 and 60000 (milliseconds). Default: 5000%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_LINK_PONG:
tmp = param_to_int(param, paramlen);
if (tmp < 1) {
knet_vty_write(vty, "pong_count must be a value between 0 and 255%s", telnet_newline);
err = -1;
}
break;
case CMDS_PARAM_VTY_TIMEOUT:
tmp = param_to_int(param, paramlen);
if ((tmp < 0) || (tmp > 3600)) {
knet_vty_write(vty, "vty logout timeout should be a value between 0 (disabled) and 3600 seconds. Default: %d%s", KNET_VTY_CLI_TIMEOUT, telnet_newline);
}
break;
default:
knet_vty_write(vty, "CLI ERROR: unknown parameter type%s", telnet_newline);
err = -1;
break;
}
return err;
}
static void describe_param(struct knet_vty *vty, const int paramtype)
{
switch(paramtype) {
case CMDS_PARAM_NOMORE:
knet_vty_write(vty, "no more parameters%s", telnet_newline);
break;
case CMDS_PARAM_KNET:
knet_vty_write(vty, "KNET_IFACE_NAME - interface name (max %d chars) eg: kronosnet0%s", IFNAMSIZ, telnet_newline);
break;
case CMDS_PARAM_IP:
knet_vty_write(vty, "IP address - ipv4 or ipv6 address to add/remove%s", telnet_newline);
break;
case CMDS_PARAM_IP_PREFIX:
knet_vty_write(vty, "IP prefix len (eg. 24, 64)%s", telnet_newline);
break;
case CMDS_PARAM_IP_PORT:
knet_vty_write(vty, "base port (eg: %d) %s", KNET_RING_DEFPORT, telnet_newline);
case CMDS_PARAM_BOOL:
break;
case CMDS_PARAM_INT:
break;
case CMDS_PARAM_NODEID:
knet_vty_write(vty, "NODEID - unique identifier for this interface in this kronos network (value between 0 and 255)%s", telnet_newline);
break;
case CMDS_PARAM_NAME:
knet_vty_write(vty, "NAME - unique name identifier for this entity (max %d chars)%s", KNET_MAX_HOST_LEN - 1, telnet_newline);
break;
case CMDS_PARAM_MTU:
knet_vty_write(vty, "MTU - a value between 576 and 65536 (note: max value depends on the media)%s", telnet_newline);
break;
case CMDS_PARAM_PMTU_FREQ:
knet_vty_write(vty, "PMTUd frequency - a value in seconds between 5 and 600 (default: 5)%s", telnet_newline);
break;
case CMDS_PARAM_CRYPTO_MODEL:
knet_vty_write(vty, "MODEL - define encryption backend: none or nss%s", telnet_newline);
break;
case CMDS_PARAM_CRYPTO_TYPE:
knet_vty_write(vty, "CRYPTO - define packets encryption method: none or aes256%s", telnet_newline);
break;
case CMDS_PARAM_HASH_TYPE:
knet_vty_write(vty, "HASH - define packets hashing method: none/md5/sha1/sha256/sha384/sha512%s", telnet_newline);
break;
case CMDS_PARAM_POLICY:
knet_vty_write(vty, "POLICY - define packets switching policy: passive/active/round-robin%s", telnet_newline);
break;
case CMDS_PARAM_LINK_ID:
knet_vty_write(vty, "LINKID - specify the link identification number (0-7)%s", telnet_newline);
break;
case CMDS_PARAM_LINK_TRANSP:
knet_vty_write(vty, "TRANSPORT - specify the link transport protocol (UDP/SCTP/..)%s", telnet_newline);
break;
case CMDS_PARAM_LINK_PRI:
knet_vty_write(vty, "PRIORITY - specify the link priority for passive switching (0 to 255, default is 0). The higher value is preferred over lower value%s", telnet_newline);
break;
case CMDS_PARAM_LINK_KEEPAL:
knet_vty_write(vty, "KEEPALIVE - specify the keepalive interval for this link (0 to 60000 milliseconds, default is 1000).%s", telnet_newline);
break;
case CMDS_PARAM_LINK_HOLDTI:
knet_vty_write(vty, "HOLDTIME - specify how much time has to pass without connection before a link is considered dead (0 to 60000 milliseconds, default is 5000).%s", telnet_newline);
break;
case CMDS_PARAM_VTY_TIMEOUT:
knet_vty_write(vty, "VTY_TIMEOUT - specify the number of seconds before a session is automatically closed.%s", telnet_newline);
break;
default: /* this should never happen */
knet_vty_write(vty, "CLI ERROR: unknown parameter type%s", telnet_newline);
break;
}
}
static void print_help(struct knet_vty *vty, const vty_node_cmds_t *cmds, int idx)
{
if ((idx < 0) || (cmds == NULL) || (cmds[idx].cmd == NULL))
return;
if (cmds[idx].help != NULL) {
knet_vty_write(vty, "%s\t%s%s",
cmds[idx].cmd,
cmds[idx].help,
telnet_newline);
} else {
knet_vty_write(vty, "%s\tNo help available for this command%s",
cmds[idx].cmd,
telnet_newline);
}
}
static int get_param(struct knet_vty *vty, int wanted_paranum,
char **param, int *paramlen, int *paramoffset)
{
int eparams, tparams;
const vty_param_t *params = (const vty_param_t *)vty->param;
int paramstart = vty->paramoffset;
eparams = expected_params(params);
tparams = count_words(vty, paramstart);
if (tparams > eparams)
return -1;
if (wanted_paranum == -1) {
get_n_word_from_end(vty, 1, param, paramlen, paramoffset);
return tparams;
}
if (tparams < wanted_paranum)
return -1;
get_n_word_from_end(vty, (tparams - wanted_paranum) + 1, param, paramlen, paramoffset);
return tparams - wanted_paranum;
}
static int match_command(struct knet_vty *vty, const vty_node_cmds_t *cmds,
char *cmd, int cmdlen, int cmdoffset, int mode)
{
int idx = 0, found = -1, paramoffset = 0, paramlen = 0, last_param = 0;
char *param = NULL;
int paramstart = cmdlen + cmdoffset;
int matches[KNET_VTY_MAX_MATCHES];
memset(&matches, -1, sizeof(matches));
while ((cmds[idx].cmd != NULL) && (idx < KNET_VTY_MAX_MATCHES)) {
if (!strncmp(cmds[idx].cmd, cmd, cmdlen)) {
found++;
matches[found] = idx;
}
idx++;
}
if (idx >= KNET_VTY_MAX_MATCHES) {
knet_vty_write(vty, "Too many matches for this command%s", telnet_newline);
return -1;
}
if (found < 0) {
knet_vty_write(vty, "There is no such command%s", telnet_newline);
return -1;
}
switch(mode) {
case KNET_VTY_MATCH_HELP:
if (found == 0) {
if ((cmdoffset <= vty->cursor_pos) && (vty->cursor_pos <= paramstart)) {
print_help(vty, cmds, matches[0]);
break;
}
if (cmds[matches[0]].params != NULL) {
vty->param = (void *)cmds[matches[0]].params;
vty->paramoffset = paramstart;
last_param = get_param(vty, -1, ¶m, ¶mlen, ¶moffset);
if ((paramoffset <= vty->cursor_pos) && (vty->cursor_pos <= (paramoffset + paramlen)))
last_param--;
if (last_param >= CMDS_PARAM_NOMORE) {
describe_param(vty, cmds[matches[0]].params[last_param].param);
if (paramoffset > 0)
check_param(vty, cmds[matches[0]].params[last_param].param, param, paramlen);
}
break;
}
}
if (found >= 0) {
idx = 0;
while (matches[idx] >= 0) {
print_help(vty, cmds, matches[idx]);
idx++;
}
}
break;
case KNET_VTY_MATCH_EXEC:
if (found == 0) {
int exec = 0;
if (cmds[matches[0]].params != NULL) {
int eparams, tparams;
eparams = expected_params(cmds[matches[0]].params);
tparams = count_words(vty, paramstart);
if (eparams != tparams) {
exec = -1;
idx = 0;
knet_vty_write(vty, "Parameter required for this command:%s", telnet_newline);
while(cmds[matches[0]].params[idx].param != CMDS_PARAM_NOMORE) {
describe_param(vty, cmds[matches[0]].params[idx].param);
idx++;
}
break;
}
idx = 0;
vty->param = (void *)cmds[matches[0]].params;
vty->paramoffset = paramstart;
while(cmds[matches[0]].params[idx].param != CMDS_PARAM_NOMORE) {
get_param(vty, idx + 1, ¶m, ¶mlen, ¶moffset);
if (check_param(vty, cmds[matches[0]].params[idx].param,
param, paramlen) < 0) {
exec = -1;
if (vty->filemode)
return -1;
}
idx++;
}
}
if (!exec) {
if (cmds[matches[0]].params != NULL) {
vty->param = (void *)cmds[matches[0]].params;
vty->paramoffset = paramstart;
}
if (cmds[matches[0]].func != NULL) {
return cmds[matches[0]].func(vty);
} else { /* this will eventually disappear */
knet_vty_write(vty, "no fn associated to this command%s", telnet_newline);
}
}
}
if (found > 0) {
knet_vty_write(vty, "Ambiguous command.%s", telnet_newline);
}
break;
case KNET_VTY_MATCH_EXPAND:
if (found == 0) {
int cmdreallen;
if (vty->cursor_pos > cmdoffset+cmdlen) /* complete param? */
break;
cmdreallen = strlen(cmds[matches[0]].cmd);
memset(vty->line + cmdoffset, 0, cmdlen);
memmove(vty->line + cmdoffset, cmds[matches[0]].cmd, cmdreallen);
vty->line[cmdreallen + cmdoffset] = ' ';
vty->line_idx = cmdreallen + cmdoffset + 1;
vty->cursor_pos = cmdreallen + cmdoffset + 1;
}
if (found > 0) { /* add completion to string base root */
int count = 0;
idx = 0;
while (matches[idx] >= 0) {
knet_vty_write(vty, "%s\t\t", cmds[matches[idx]].cmd);
idx++;
count++;
if (count == 4) {
knet_vty_write(vty, "%s",telnet_newline);
count = 0;
}
}
knet_vty_write(vty, "%s",telnet_newline);
}
break;
default: /* this should never really happen */
log_info("Unknown match mode");
break;
}
return found;
}
/* forward declarations */
/* common to almost all nodes */
static int knet_cmd_logout(struct knet_vty *vty);
static int knet_cmd_who(struct knet_vty *vty);
static int knet_cmd_exit_node(struct knet_vty *vty);
static int knet_cmd_help(struct knet_vty *vty);
/* root node */
static int knet_cmd_config(struct knet_vty *vty);
/* config node */
static int knet_cmd_interface(struct knet_vty *vty);
static int knet_cmd_no_interface(struct knet_vty *vty);
static int knet_cmd_status(struct knet_vty *vty);
static int knet_cmd_show_conf(struct knet_vty *vty);
static int knet_cmd_write_conf(struct knet_vty *vty);
/* interface node */
static int knet_cmd_mtu(struct knet_vty *vty);
static int knet_cmd_no_mtu(struct knet_vty *vty);
static int knet_cmd_ip(struct knet_vty *vty);
static int knet_cmd_no_ip(struct knet_vty *vty);
static int knet_cmd_peer(struct knet_vty *vty);
static int knet_cmd_no_peer(struct knet_vty *vty);
static int knet_cmd_start(struct knet_vty *vty);
static int knet_cmd_stop(struct knet_vty *vty);
static int knet_cmd_crypto(struct knet_vty *vty);
static int knet_cmd_pmtufreq(struct knet_vty *vty);
static int knet_cmd_no_pmtufreq(struct knet_vty *vty);
/* peer node */
static int knet_cmd_link(struct knet_vty *vty);
static int knet_cmd_no_link(struct knet_vty *vty);
static int knet_cmd_switch_policy(struct knet_vty *vty);
/* link node */
static int knet_cmd_link_pri(struct knet_vty *vty);
static int knet_cmd_link_pong(struct knet_vty *vty);
static int knet_cmd_link_timer(struct knet_vty *vty);
/* vty node */
static int knet_cmd_vty(struct knet_vty *vty);
static int knet_cmd_vty_timeout(struct knet_vty *vty);
/* root node description */
vty_node_cmds_t root_cmds[] = {
{ "configure", "enter configuration mode", NULL, knet_cmd_config },
{ "exit", "exit from CLI", NULL, knet_cmd_logout },
{ "help", "display basic help", NULL, knet_cmd_help },
{ "logout", "exit from CLI", NULL, knet_cmd_logout },
{ "status", "display current network status", NULL, knet_cmd_status },
{ "vty", "enter vty configuration mode", NULL, knet_cmd_vty },
{ "who", "display users connected to CLI", NULL, knet_cmd_who },
{ NULL, NULL, NULL, NULL },
};
/* config node description */
vty_param_t no_int_params[] = {
{ CMDS_PARAM_KNET },
{ CMDS_PARAM_NOMORE },
};
vty_node_cmds_t no_config_cmds[] = {
{ "interface", "destroy kronosnet interface", no_int_params, knet_cmd_no_interface },
{ NULL, NULL, NULL, NULL },
};
vty_param_t int_params[] = {
{ CMDS_PARAM_KNET },
{ CMDS_PARAM_NODEID },
{ CMDS_PARAM_IP_PORT },
{ CMDS_PARAM_NOMORE },
};
vty_node_cmds_t config_cmds[] = {
{ "exit", "exit configuration mode", NULL, knet_cmd_exit_node },
{ "interface", "configure kronosnet interface", int_params, knet_cmd_interface },
{ "show", "show running config", NULL, knet_cmd_show_conf },
{ "help", "display basic help", NULL, knet_cmd_help },
{ "logout", "exit from CLI", NULL, knet_cmd_logout },
{ "no", "revert command", NULL, NULL },
{ "status", "display current network status", NULL, knet_cmd_status },
{ "vty", "enter vty configuration mode", NULL, knet_cmd_vty },
{ "who", "display users connected to CLI", NULL, knet_cmd_who },
{ "write", "write current config to file", NULL, knet_cmd_write_conf },
{ NULL, NULL, NULL, NULL },
};
/* interface node description */
vty_param_t ip_params[] = {
{ CMDS_PARAM_IP },
{ CMDS_PARAM_IP_PREFIX },
{ CMDS_PARAM_NOMORE },
};
vty_param_t peer_params[] = {
{ CMDS_PARAM_NAME },
{ CMDS_PARAM_NODEID },
{ CMDS_PARAM_NOMORE },
};
vty_node_cmds_t no_interface_cmds[] = {
{ "ip", "remove ip address", ip_params, knet_cmd_no_ip },
{ "mtu", "revert to default MTU", NULL, knet_cmd_no_mtu },
{ "pmtudfreq", "revert to default PMTUd frequency (default: 5)", NULL, knet_cmd_no_pmtufreq },
{ "peer", "remove peer from this interface", peer_params, knet_cmd_no_peer },
{ NULL, NULL, NULL, NULL },
};
vty_param_t mtu_params[] = {
{ CMDS_PARAM_MTU },
{ CMDS_PARAM_NOMORE },
};
vty_param_t pmtu_params[] = {
{ CMDS_PARAM_PMTU_FREQ },
{ CMDS_PARAM_NOMORE },
};
vty_param_t crypto_params[] = {
{ CMDS_PARAM_CRYPTO_MODEL },
{ CMDS_PARAM_CRYPTO_TYPE },
{ CMDS_PARAM_HASH_TYPE },
{ CMDS_PARAM_NOMORE },
};
vty_node_cmds_t interface_cmds[] = {
{ "crypto", "enable crypto/hmac", crypto_params, knet_cmd_crypto },
{ "exit", "exit configuration mode", NULL, knet_cmd_exit_node },
{ "help", "display basic help", NULL, knet_cmd_help },
{ "ip", "add ip address", ip_params, knet_cmd_ip },
{ "logout", "exit from CLI", NULL, knet_cmd_logout },
{ "mtu", "set mtu (default: auto)", mtu_params, knet_cmd_mtu },
{ "pmtudfreq", "PMTUd frequency (default: 5)", pmtu_params, knet_cmd_pmtufreq },
{ "no", "revert command", NULL, NULL },
{ "peer", "add peer endpoint", peer_params, knet_cmd_peer },
{ "show", "show running config", NULL, knet_cmd_show_conf },
{ "start", "start forwarding engine", NULL, knet_cmd_start },
{ "status", "display current network status", NULL, knet_cmd_status },
{ "stop", "stop forwarding engine", NULL, knet_cmd_stop },
{ "who", "display users connected to CLI", NULL, knet_cmd_who },
{ "write", "write current config to file", NULL, knet_cmd_write_conf },
{ NULL, NULL, NULL, NULL },
};
/* peer node description */
vty_param_t nolink_params[] = {
{ CMDS_PARAM_LINK_ID },
{ CMDS_PARAM_NOMORE },
};
vty_param_t link_params[] = {
{ CMDS_PARAM_LINK_ID },
{ CMDS_PARAM_IP },
{ CMDS_PARAM_IP },
{ CMDS_PARAM_LINK_TRANSP },
{ CMDS_PARAM_NOMORE },
};
vty_param_t switch_params[] = {
{ CMDS_PARAM_POLICY },
{ CMDS_PARAM_NOMORE },
};
vty_node_cmds_t no_peer_cmds[] = {
{ "link", "remove peer endpoint", nolink_params, knet_cmd_no_link},
{ NULL, NULL, NULL, NULL },
};
vty_node_cmds_t peer_cmds[] = {
{ "exit", "exit configuration mode", NULL, knet_cmd_exit_node },
{ "help", "display basic help", NULL, knet_cmd_help },
{ "link", "add peer endpoint", link_params, knet_cmd_link },
{ "logout", "exit from CLI", NULL, knet_cmd_logout },
{ "no", "revert command", NULL, NULL },
{ "show", "show running config", NULL, knet_cmd_show_conf },
{ "status", "display current network status", NULL, knet_cmd_status },
{ "switch-policy", "configure switching policy engine", switch_params, knet_cmd_switch_policy },
{ "who", "display users connected to CLI", NULL, knet_cmd_who },
{ "write", "write current config to file", NULL, knet_cmd_write_conf },
{ NULL, NULL, NULL, NULL },
};
/* link node description */
vty_param_t link_pri_params[] = {
{ CMDS_PARAM_LINK_PRI },
{ CMDS_PARAM_NOMORE },
};
vty_param_t link_timer_params[] = {
{ CMDS_PARAM_LINK_KEEPAL },
{ CMDS_PARAM_LINK_HOLDTI },
{ CMDS_PARAM_NOMORE },
};
vty_param_t pong_count_params[] = {
{ CMDS_PARAM_LINK_PONG },
{ CMDS_PARAM_NOMORE },
};
vty_node_cmds_t link_cmds[] = {
{ "exit", "exit configuration mode", NULL, knet_cmd_exit_node },
{ "help", "display basic help", NULL, knet_cmd_help },
{ "logout", "exit from CLI", NULL, knet_cmd_logout },
{ "no", "revert command", NULL, NULL },
{ "pong_count", "set number of pongs to be received before a link is considered alive", pong_count_params, knet_cmd_link_pong },
{ "priority", "set priority of this link for passive switching", link_pri_params, knet_cmd_link_pri },
{ "show", "show running config", NULL, knet_cmd_show_conf },
{ "status", "display current network status", NULL, knet_cmd_status },
{ "timers", "set link keepalive and holdtime", link_timer_params, knet_cmd_link_timer },
{ "who", "display users connected to CLI", NULL, knet_cmd_who },
{ "write", "write current config to file", NULL, knet_cmd_write_conf },
{ NULL, NULL, NULL, NULL },
};
vty_param_t vty_timeout_params[] = {
{ CMDS_PARAM_VTY_TIMEOUT },
{ CMDS_PARAM_NOMORE },
};
vty_node_cmds_t vty_cmds[] = {
{ "exit", "exit configuration mode", NULL, knet_cmd_exit_node },
{ "help", "display basic help", NULL, knet_cmd_help },
{ "logout", "exit from CLI", NULL, knet_cmd_logout },
{ "show", "show running config", NULL, knet_cmd_show_conf },
{ "status", "display current network status", NULL, knet_cmd_status },
{ "timeout", "set number of seconds before session is automatically closed", vty_timeout_params, knet_cmd_vty_timeout },
{ "who", "display users connected to CLI", NULL, knet_cmd_who },
{ "write", "write current config to file", NULL, knet_cmd_write_conf },
{ NULL, NULL, NULL, NULL },
};
/* nodes */
vty_nodes_t knet_vty_nodes[] = {
{ NODE_ROOT, "knet", root_cmds, NULL },
{ NODE_CONFIG, "config", config_cmds, no_config_cmds },
{ NODE_INTERFACE, "iface", interface_cmds, no_interface_cmds },
{ NODE_PEER, "peer", peer_cmds, no_peer_cmds },
{ NODE_LINK, "link", link_cmds, NULL },
{ NODE_VTY, "vty", vty_cmds, NULL },
{ -1, NULL, NULL, NULL },
};
/* command execution */
/* vty */
static int knet_cmd_vty_timeout(struct knet_vty *vty)
{
int paramlen = 0, paramoffset = 0, timeout;
char *param = NULL;
get_param(vty, 1, ¶m, ¶mlen, ¶moffset);
timeout = param_to_int(param, paramlen);
if ((vty->filemode) || (vty->prevnode == NODE_CONFIG)) {
vty->vty_global_conf->idle_timeout = timeout;
}
vty->idle_timeout = timeout;
return 0;
}
static int knet_cmd_vty(struct knet_vty *vty)
{
vty->prevnode = vty->node;
vty->node = NODE_VTY;
return 0;
}
/* links */
static int knet_cmd_link_pong(struct knet_vty *vty)
{
struct knet_cfg *knet_iface = (struct knet_cfg *)vty->iface;
int paramlen = 0, paramoffset = 0;
char *param = NULL;
uint8_t pong_count;
get_param(vty, 1, ¶m, ¶mlen, ¶moffset);
pong_count = param_to_int(param, paramlen);
knet_link_set_pong_count(knet_iface->cfg_ring.knet_h, vty->host_id, vty->link_id, pong_count);
return 0;
}
static int knet_cmd_link_timer(struct knet_vty *vty)
{
struct knet_cfg *knet_iface = (struct knet_cfg *)vty->iface;
int paramlen = 0, paramoffset = 0;
char *param = NULL;
time_t keepalive, holdtime;
get_param(vty, 1, ¶m, ¶mlen, ¶moffset);
keepalive = param_to_int(param, paramlen);
get_param(vty, 2, ¶m, ¶mlen, ¶moffset);
holdtime = param_to_int(param, paramlen);
knet_link_set_ping_timers(knet_iface->cfg_ring.knet_h, vty->host_id, vty->link_id, keepalive, holdtime, 2048);
return 0;
}
static int knet_cmd_link_pri(struct knet_vty *vty)
{
struct knet_cfg *knet_iface = (struct knet_cfg *)vty->iface;
int paramlen = 0, paramoffset = 0;
char *param = NULL;
uint8_t priority;
get_param(vty, 1, ¶m, ¶mlen, ¶moffset);
priority = param_to_int(param, paramlen);
if (knet_link_set_priority(knet_iface->cfg_ring.knet_h, vty->host_id, vty->link_id, priority)) {
knet_vty_write(vty, "Error: unable to update link priority%s", telnet_newline);
return -1;
}
return 0;
}
static int knet_cmd_no_link(struct knet_vty *vty)
{
struct knet_cfg *knet_iface = (struct knet_cfg *)vty->iface;
struct knet_link_status status;
int paramlen = 0, paramoffset = 0;
char *param = NULL;
get_param(vty, 1, ¶m, ¶mlen, ¶moffset);
vty->link_id = param_to_int(param, paramlen);
knet_link_get_status(knet_iface->cfg_ring.knet_h, vty->host_id, vty->link_id, &status, sizeof(status));
if (status.enabled) {
if (knet_link_set_enable(knet_iface->cfg_ring.knet_h, vty->host_id, vty->link_id, 0)) {
knet_vty_write(vty, "Error: unable to update switching cache%s", telnet_newline);
return -1;
}
knet_link_clear_config(knet_iface->cfg_ring.knet_h, vty->host_id, vty->link_id);
}
return 0;
}
static int knet_cmd_link(struct knet_vty *vty)
{
struct knet_cfg *knet_iface = (struct knet_cfg *)vty->iface;
struct knet_link_status status;
int paramlen = 0, paramoffset = 0, err = 0;
char *param = NULL;
char src_ipaddr[KNET_MAX_HOST_LEN], src_port[KNET_MAX_PORT_LEN], dst_ipaddr[KNET_MAX_HOST_LEN], dst_port[KNET_MAX_PORT_LEN];
struct sockaddr_storage src_addr;
struct sockaddr_storage dst_addr;
struct sockaddr_storage *dst = NULL;
char transport[10];
uint8_t transport_id;
get_param(vty, 1, ¶m, ¶mlen, ¶moffset);
vty->link_id = param_to_int(param, paramlen);
get_param(vty, 2, ¶m, ¶mlen, ¶moffset);
param_to_str(src_ipaddr, KNET_MAX_HOST_LEN, param, paramlen);
memset(src_port, 0, sizeof(src_port));
snprintf(src_port, KNET_MAX_PORT_LEN, "%d", knet_iface->cfg_ring.base_port + vty->host_id);
get_param(vty, 3, ¶m, ¶mlen, ¶moffset);
param_to_str(dst_ipaddr, KNET_MAX_HOST_LEN, param, paramlen);
memset(dst_port, 0, sizeof(dst_port));