source: mainline/uspace/app/inet/inet.c@ f8dbc12

/*
 * Copyright (c) 2012 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup inet
 * @{
 */
/** @file Internet configuration utility.
 *
 * Controls the internet service (@c inet).
 */

#include <errno.h>
#include <inet/inetcfg.h>
#include <loc.h>
#include <stdio.h>
#include <stdlib.h>
#include <str_error.h>
#include <sys/types.h>

#define NAME "inet"

static void print_syntax(void)
{
        printf("syntax:\n");
        printf("\t" NAME " create <addr>/<width> <link-name> <addr-name>\n");
        printf("\t" NAME " delete <link-name> <addr-name>\n");
        printf("\t" NAME " add-sr <dest-addr>/<width> <router-addr> <route-name>\n");
        printf("\t" NAME " del-sr <route-name>\n");
}

static int naddr_parse(const char *text, inet_naddr_t *naddr)
{
        unsigned long a[4], bits;
        char *cp = (char *)text;
        int i;

        for (i = 0; i < 3; i++) {
                a[i] = strtoul(cp, &cp, 10);
                if (*cp != '.')
                        return EINVAL;
                ++cp;
        }

        a[3] = strtoul(cp, &cp, 10);
        if (*cp != '/')
                return EINVAL;
        ++cp;

        bits = strtoul(cp, &cp, 10);
        if (*cp != '\0')
                return EINVAL;

        naddr->ipv4 = 0;
        for (i = 0; i < 4; i++) {
                if (a[i] > 255)
                        return EINVAL;
                naddr->ipv4 = (naddr->ipv4 << 8) | a[i];
        }

        if (bits > 31)
                return EINVAL;

        naddr->bits = bits;
        return EOK;
}

static int addr_parse(const char *text, inet_addr_t *addr)
{
        unsigned long a[4];
        char *cp = (char *)text;
        int i;

        for (i = 0; i < 3; i++) {
                a[i] = strtoul(cp, &cp, 10);
                if (*cp != '.')
                        return EINVAL;
                ++cp;
        }

        a[3] = strtoul(cp, &cp, 10);
        if (*cp != '\0')
                return EINVAL;

        addr->ipv4 = 0;
        for (i = 0; i < 4; i++) {
                if (a[i] > 255)
                        return EINVAL;
                addr->ipv4 = (addr->ipv4 << 8) | a[i];
        }

        return EOK;
}

static int naddr_format(inet_naddr_t *naddr, char **bufp)
{
        int rc;

        rc = asprintf(bufp, "%d.%d.%d.%d/%d", naddr->ipv4 >> 24,
            (naddr->ipv4 >> 16) & 0xff, (naddr->ipv4 >> 8) & 0xff,
            naddr->ipv4 & 0xff, naddr->bits);

        if (rc < 0)
                return ENOMEM;

        return EOK;
}

static int addr_format(inet_addr_t *addr, char **bufp)
{
        int rc;

        rc = asprintf(bufp, "%d.%d.%d.%d", addr->ipv4 >> 24,
            (addr->ipv4 >> 16) & 0xff, (addr->ipv4 >> 8) & 0xff,
            addr->ipv4 & 0xff);

        if (rc < 0)
                return ENOMEM;

        return EOK;
}

static int addr_create_static(int argc, char *argv[])
{
        char *aobj_name;
        char *addr_spec;
        char *link_name;

        inet_naddr_t naddr;
        sysarg_t link_id;
        sysarg_t addr_id;
        int rc;

        if (argc < 3) {
                printf(NAME ": Missing arguments.\n");
                print_syntax();
                return EINVAL;
        }

        if (argc > 3) {
                printf(NAME ": Too many arguments.\n");
                print_syntax();
                return EINVAL;
        }

        addr_spec = argv[0];
        link_name = argv[1];
        aobj_name = argv[2];

        rc = loc_service_get_id(link_name, &link_id, 0);
        if (rc != EOK) {
                printf(NAME ": Service '%s' not found (%d).\n", link_name, rc);
                return ENOENT;
        }

        rc = naddr_parse(addr_spec, &naddr);
        if (rc != EOK) {
                printf(NAME ": Invalid network address format '%s'.\n",
                    addr_spec);
                return EINVAL;
        }

        rc = inetcfg_addr_create_static(aobj_name, &naddr, link_id, &addr_id);
        if (rc != EOK) {
                printf(NAME ": Failed creating static address '%s' (%d)\n",
                    aobj_name, rc);
                return EIO;
        }

        return EOK;
}

static int addr_delete(int argc, char *argv[])
{
        char *aobj_name;
        char *link_name;
        sysarg_t link_id;
        sysarg_t addr_id;
        int rc;

        if (argc < 2) {
                printf(NAME ": Missing arguments.\n");
                print_syntax();
                return EINVAL;
        }

        if (argc > 2) {
                printf(NAME ": Too many arguments.\n");
                print_syntax();
                return EINVAL;
        }

        link_name = argv[0];
        aobj_name = argv[1];

        rc = loc_service_get_id(link_name, &link_id, 0);
        if (rc != EOK) {
                printf(NAME ": Service '%s' not found (%d).\n", link_name, rc);
                return ENOENT;
        }

        rc = inetcfg_addr_get_id(aobj_name, link_id, &addr_id);
        if (rc != EOK) {
                printf(NAME ": Address '%s' not found (%d).\n", aobj_name, rc);
                return ENOENT;
        }

        rc = inetcfg_addr_delete(addr_id);
        if (rc != EOK) {
                printf(NAME ": Failed deleting address '%s' (%d)\n", aobj_name,
                    rc);
                return EIO;
        }

        return EOK;
}

static int sroute_create(int argc, char *argv[])
{
        char *dest_str;
        char *router_str;
        char *route_name;

        inet_naddr_t dest;
        inet_addr_t router;
        sysarg_t sroute_id;
        int rc;

        if (argc < 3) {
                printf(NAME ": Missing arguments.\n");
                print_syntax();
                return EINVAL;
        }

        if (argc > 3) {
                printf(NAME ": Too many arguments.\n");
                print_syntax();
                return EINVAL;
        }

        dest_str   = argv[0];
        router_str = argv[1];
        route_name = argv[2];

        rc = naddr_parse(dest_str, &dest);
        if (rc != EOK) {
                printf(NAME ": Invalid network address format '%s'.\n",
                    dest_str);
                return EINVAL;
        }

        rc = addr_parse(router_str, &router);
        if (rc != EOK) {
                printf(NAME ": Invalid address format '%s'.\n", router_str);
                return EINVAL;
        }

        rc = inetcfg_sroute_create(route_name, &dest, &router, &sroute_id);
        if (rc != EOK) {
                printf(NAME ": Failed creating static route '%s' (%d)\n",
                    route_name, rc);
                return EIO;
        }

        return EOK;
}

static int sroute_delete(int argc, char *argv[])
{
        char *route_name;
        sysarg_t sroute_id;
        int rc;

        if (argc < 1) {
                printf(NAME ": Missing arguments.\n");
                print_syntax();
                return EINVAL;
        }

        if (argc > 1) {
                printf(NAME ": Too many arguments.\n");
                print_syntax();
                return EINVAL;
        }

        route_name = argv[0];

        rc = inetcfg_sroute_get_id(route_name, &sroute_id);
        if (rc != EOK) {
                printf(NAME ": Static route '%s' not found (%d).\n",
                    route_name, rc);
                return ENOENT;
        }

        rc = inetcfg_sroute_delete(sroute_id);
        if (rc != EOK) {
                printf(NAME ": Failed deleting static route '%s' (%d)\n",
                    route_name, rc);
                return EIO;
        }

        return EOK;
}

static int addr_list(void)
{
        sysarg_t *addr_list;
        inet_addr_info_t ainfo;
        inet_link_info_t linfo;

        size_t count;
        size_t i;
        int rc;
        char *astr;

        rc = inetcfg_get_addr_list(&addr_list, &count);
        if (rc != EOK) {
                printf(NAME ": Failed getting address list.\n");
                return rc;
        }

        printf("Configured addresses:\n");
        if (count > 0)
                printf("    [Addr/Width] [Link-Name] [Addr-Name] [Def-MTU]\n");
        ainfo.name = linfo.name = astr = NULL;

        for (i = 0; i < count; i++) {
                rc = inetcfg_addr_get(addr_list[i], &ainfo);
                if (rc != EOK) {
                        printf("Failed getting properties of address %zu.\n",
                            (size_t)addr_list[i]);
                        ainfo.name = NULL;
                        continue;
                }

                rc = inetcfg_link_get(ainfo.ilink, &linfo);
                if (rc != EOK) {
                        printf("Failed getting properties of link %zu.\n",
                            (size_t)ainfo.ilink);
                        linfo.name = NULL;
                        continue;
                }

                rc = naddr_format(&ainfo.naddr, &astr);
                if (rc != EOK) {
                        printf("Memory allocation failed.\n");
                        astr = NULL;
                        goto out;
                }

                printf("    %s %s %s %zu\n", astr, linfo.name,
                    ainfo.name, linfo.def_mtu);

                free(ainfo.name);
                free(linfo.name);
                free(astr);

                ainfo.name = linfo.name = astr = NULL;
        }

        if (count == 0)
                printf("    None\n");
out:
        if (ainfo.name != NULL)
                free(ainfo.name);
        if (linfo.name != NULL)
                free(linfo.name);
        if (astr != NULL)
                free(astr);

        free(addr_list);

        return EOK;
}

static int sroute_list(void)
{
        sysarg_t *sroute_list;
        inet_sroute_info_t srinfo;

        size_t count;
        size_t i;
        int rc;
        char *dest_str;
        char *router_str;

        rc = inetcfg_get_sroute_list(&sroute_list, &count);
        if (rc != EOK) {
                printf(NAME ": Failed getting address list.\n");
                return rc;
        }

        printf("Static routes:\n");
        if (count > 0)
                printf("    [Dest/Width] [Router-Addr] [Route-Name]\n");

        srinfo.name = dest_str = router_str = NULL;

        for (i = 0; i < count; i++) {
                rc = inetcfg_sroute_get(sroute_list[i], &srinfo);
                if (rc != EOK) {
                        printf("Failed getting properties of static route %zu.\n",
                            (size_t)sroute_list[i]);
                        srinfo.name = NULL;
                        continue;
                }

                rc = naddr_format(&srinfo.dest, &dest_str);
                if (rc != EOK) {
                        printf("Memory allocation failed.\n");
                        dest_str = NULL;
                        goto out;
                }

                rc = addr_format(&srinfo.router, &router_str);
                if (rc != EOK) {
                        printf("Memory allocation failed.\n");
                        router_str = NULL;
                        goto out;
                }

                printf("    %s %s %s\n", dest_str, router_str, srinfo.name);

                free(srinfo.name);
                free(dest_str);
                free(router_str);

                router_str = srinfo.name = dest_str = NULL;
        }

        if (count == 0)
                printf("    None\n");
out:
        if (srinfo.name != NULL)
                free(srinfo.name);
        if (dest_str != NULL)
                free(dest_str);
        if (router_str != NULL)
                free(router_str);

        free(sroute_list);

        return EOK;
}

int main(int argc, char *argv[])
{
        int rc;

        rc = inetcfg_init();
        if (rc != EOK) {
                printf(NAME ": Failed connecting to internet service (%d).\n",
                    rc);
                return 1;
        }

        if (argc < 2) {
                rc = addr_list();
                if (rc != EOK)
                        return 1;
                rc = sroute_list();
                if (rc != EOK)
                        return 1;
                return 0;
        }

        if (str_cmp(argv[1], "create") == 0) {
                rc = addr_create_static(argc - 2, argv + 2);
                if (rc != EOK)
                        return 1;
        } else if (str_cmp(argv[1], "delete") == 0) {
                rc = addr_delete(argc - 2, argv + 2);
                if (rc != EOK)
                        return 1;
        } else if (str_cmp(argv[1], "add-sr") == 0) {
                rc = sroute_create(argc - 2, argv + 2);
                if (rc != EOK)
                        return 1;
        } else if (str_cmp(argv[1], "del-sr") == 0) {
                rc = sroute_delete(argc - 2, argv + 2);
                if (rc != EOK)
                        return 1;
        } else {
                printf(NAME ": Unknown command '%s'.\n", argv[1]);
                print_syntax();
                return 1;
        }

        return 0;
}

/** @}
 */