From 10e8a05be15a93ecb30d80420a7df79a41df0b6f Mon Sep 17 00:00:00 2001 From: Mystery Man Date: Thu, 1 Aug 2002 17:20:30 +0000 Subject: This commit was manufactured by cvs2svn to create tag 'V1_1_9_1mdk'. --- mdk-stage1/network.c | 833 --------------------------------------------------- 1 file changed, 833 deletions(-) delete mode 100644 mdk-stage1/network.c (limited to 'mdk-stage1/network.c') diff --git a/mdk-stage1/network.c b/mdk-stage1/network.c deleted file mode 100644 index 3d3107ddf..000000000 --- a/mdk-stage1/network.c +++ /dev/null @@ -1,833 +0,0 @@ -/* - * Guillaume Cottenceau (gc@mandrakesoft.com) - * - * Copyright 2000 MandrakeSoft - * - * This software may be freely redistributed under the terms of the GNU - * public license. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -/* - * Portions from Erik Troan (ewt@redhat.com) - * - * Copyright 1996 Red Hat Software - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "stage1.h" -#include "frontend.h" -#include "modules.h" -#include "probing.h" -#include "log.h" -#include "mount.h" -#include "automatic.h" -#include "dhcp.h" -#include "adsl.h" -#include "url.h" -#include "dns.h" - -#include "network.h" - - -static void error_message_net(void) /* reduce code size */ -{ - stg1_error_message("Could not configure network."); -} - - -int configure_net_device(struct interface_info * intf) -{ - struct ifreq req; - struct rtentry route; - int s; - struct sockaddr_in addr; - struct in_addr ia; - char ip[20], nm[20], nw[20], bc[20]; - - addr.sin_family = AF_INET; - addr.sin_port = 0; - - memcpy(&ia, &intf->ip, sizeof(intf->ip)); - strcpy(ip, inet_ntoa(ia)); - - memcpy(&ia, &intf->netmask, sizeof(intf->netmask)); - strcpy(nm, inet_ntoa(ia)); - - memcpy(&ia, &intf->broadcast, sizeof(intf->broadcast)); - strcpy(bc, inet_ntoa(ia)); - - memcpy(&ia, &intf->network, sizeof(intf->network)); - strcpy(nw, inet_ntoa(ia)); - - log_message("configuring device %s ip: %s nm: %s nw: %s bc: %s", intf->device, ip, nm, nw, bc); - - if (IS_TESTING) - return 0; - - s = socket(AF_INET, SOCK_DGRAM, 0); - if (s < 0) { - log_perror("socket"); - error_message_net(); - return 1; - } - - strcpy(req.ifr_name, intf->device); - - if (intf->is_up == 1) { - log_message("interface already up, downing before reconfigure"); - - req.ifr_flags = 0; - if (ioctl(s, SIOCSIFFLAGS, &req)) { - close(s); - log_perror("SIOCSIFFLAGS (downing)"); - error_message_net(); - return 1; - } - } - - /* sets IP address */ - addr.sin_port = 0; - memcpy(&addr.sin_addr, &intf->ip, sizeof(intf->ip)); - memcpy(&req.ifr_addr, &addr, sizeof(addr)); - if (ioctl(s, SIOCSIFADDR, &req)) { - close(s); - log_perror("SIOCSIFADDR"); - error_message_net(); - return 1; - } - - /* sets broadcast */ - memcpy(&addr.sin_addr, &intf->broadcast, sizeof(intf->broadcast)); - memcpy(&req.ifr_broadaddr, &addr, sizeof(addr)); - if (ioctl(s, SIOCSIFBRDADDR, &req)) { - close(s); - log_perror("SIOCSIFBRDADDR"); - error_message_net(); - return 1; - } - - /* sets netmask */ - memcpy(&addr.sin_addr, &intf->netmask, sizeof(intf->netmask)); - memcpy(&req.ifr_netmask, &addr, sizeof(addr)); - if (ioctl(s, SIOCSIFNETMASK, &req)) { - close(s); - log_perror("SIOCSIFNETMASK"); - error_message_net(); - return 1; - } - - if (intf->is_ptp) - req.ifr_flags = IFF_UP | IFF_RUNNING | IFF_POINTOPOINT | IFF_NOARP; - else - req.ifr_flags = IFF_UP | IFF_RUNNING | IFF_BROADCAST; - - /* brings up networking! */ - if (ioctl(s, SIOCSIFFLAGS, &req)) { - close(s); - log_perror("SIOCSIFFLAGS (upping)"); - error_message_net(); - return 1; - } - - memset(&route, 0, sizeof(route)); - route.rt_dev = intf->device; - route.rt_flags = RTF_UP; - - memcpy(&addr.sin_addr, &intf->network, sizeof(intf->network)); - memcpy(&route.rt_dst, &addr, sizeof(addr)); - - memcpy(&addr.sin_addr, &intf->netmask, sizeof(intf->netmask)); - memcpy(&route.rt_genmask, &addr, sizeof(addr)); - - /* adds route */ - if (ioctl(s, SIOCADDRT, &route)) { - close(s); - log_perror("SIOCADDRT"); - error_message_net(); - return 1; - } - - close(s); - - intf->is_up = 1; - - if (intf->boot_proto != BOOTPROTO_DHCP && !streq(intf->device, "lo")) { - /* I need to sleep a bit in order for kernel to finish - init of the network device; if not, first sendto() for - gethostbyaddr will get an EINVAL. */ - wait_message("Bringing up networking..."); - sleep(2); - remove_wait_message(); - } - - return 0; -} - -/* host network informations */ -char * hostname = NULL; -char * domain = NULL; -struct in_addr gateway = { 0 }; -struct in_addr dns_server = { 0 }; -struct in_addr dns_server2 = { 0 }; - -static int add_default_route(void) -{ - int s; - struct rtentry route; - struct sockaddr_in addr; - - if (IS_TESTING) - return 0; - - if (gateway.s_addr == 0) { - log_message("no gateway provided, can't add default route"); - return 0; - } - - s = socket(AF_INET, SOCK_DGRAM, 0); - if (s < 0) { - close(s); - log_perror("socket"); - error_message_net(); - return 1; - } - - memset(&route, 0, sizeof(route)); - - addr.sin_family = AF_INET; - addr.sin_port = 0; - addr.sin_addr = gateway; - memcpy(&route.rt_gateway, &addr, sizeof(addr)); - - addr.sin_addr.s_addr = INADDR_ANY; - memcpy(&route.rt_dst, &addr, sizeof(addr)); - memcpy(&route.rt_genmask, &addr, sizeof(addr)); - - route.rt_flags = RTF_UP | RTF_GATEWAY; - route.rt_metric = 0; - - if (ioctl(s, SIOCADDRT, &route)) { - close(s); - log_perror("SIOCADDRT"); - error_message_net(); - return 1; - } - - close(s); - - return 0; -} - - -static int write_resolvconf(void) { - char * filename = "/etc/resolv.conf"; - FILE * f; - - if (dns_server.s_addr == 0) { - log_message("resolvconf needs a dns server"); - return -1; - } - - f = fopen(filename, "w"); - if (!f) { - log_perror(filename); - return -1; - } - - if (domain) - fprintf(f, "search %s\n", domain); /* we can live without the domain search (user will have to enter fully-qualified names) */ - fprintf(f, "nameserver %s\n", inet_ntoa(dns_server)); - if (dns_server2.s_addr != 0) - fprintf(f, "nameserver %s\n", inet_ntoa(dns_server2)); - - fclose(f); - res_init(); /* reinit the resolver so DNS changes take affect */ - - return 0; -} - - -static int save_netinfo(struct interface_info * intf) { - char * file_network = "/tmp/network"; - char file_intf[500]; - FILE * f; - - f = fopen(file_network, "w"); - if (!f) { - log_perror(file_network); - return -1; - } - - fprintf(f, "NETWORKING=yes\n"); - fprintf(f, "FORWARD_IPV4=false\n"); - - if (hostname) - fprintf(f, "HOSTNAME=%s\n", hostname); - if (domain) - fprintf(f, "DOMAINNAME=%s\n", domain); - if (dhcp_hostname && !streq(dhcp_hostname, "")) - fprintf(f, "DHCP_HOSTNAME=%s\n", dhcp_hostname); - - if (gateway.s_addr != 0) - fprintf(f, "GATEWAY=%s\n", inet_ntoa(gateway)); - - fclose(f); - - - strcpy(file_intf, "/tmp/ifcfg-"); - strcat(file_intf, intf->device); - - f = fopen(file_intf, "w"); - if (!f) { - log_perror(file_intf); - return -1; - } - - fprintf(f, "DEVICE=%s\n", intf->device); - - if (intf->boot_proto == BOOTPROTO_DHCP) - fprintf(f, "BOOTPROTO=dhcp\n"); - else if (intf->boot_proto == BOOTPROTO_STATIC) { - fprintf(f, "BOOTPROTO=static\n"); - fprintf(f, "IPADDR=%s\n", inet_ntoa(intf->ip)); - fprintf(f, "NETMASK=%s\n", inet_ntoa(intf->netmask)); - fprintf(f, "NETWORK=%s\n", inet_ntoa(intf->network)); - fprintf(f, "BROADCAST=%s\n", inet_ntoa(intf->broadcast)); - } else if (intf->boot_proto == BOOTPROTO_ADSL_PPPOE) { - fprintf(f, "BOOTPROTO=adsl_pppoe\n"); - fprintf(f, "USER=%s\n", intf->user); - fprintf(f, "PASS=%s\n", intf->pass); - } - - fclose(f); - - return 0; -} - - -char * guess_netmask(char * ip_addr) -{ - struct in_addr addr; - unsigned long int tmp; - - if (streq(ip_addr, "") || !inet_aton(ip_addr, &addr)) - return ""; - - log_message("guessing netmask"); - - tmp = ntohl(addr.s_addr); - - if (((tmp & 0xFF000000) >> 24) <= 127) - return "255.0.0.0"; - else if (((tmp & 0xFF000000) >> 24) <= 191) - return "255.255.0.0"; - else - return "255.255.255.0"; -} - - -static void static_ip_callback(char ** strings) -{ - struct in_addr addr; - - if (!inet_aton(strings[0], &addr)) - return; - - if (!strcmp(strings[1], "")) { - char * ptr; - strings[1] = strdup(strings[0]); - ptr = strrchr(strings[1], '.'); - if (ptr) - *(ptr+1) = '\0'; - } - - if (!strcmp(strings[2], "")) - strings[2] = strdup(strings[1]); - - if (!strcmp(strings[3], "")) - strings[3] = strdup(guess_netmask(strings[0])); -} - - -static enum return_type setup_network_interface(struct interface_info * intf) -{ - enum return_type results; - char * bootprotos[] = { "Static", "DHCP", "ADSL", NULL }; - char * bootprotos_auto[] = { "static", "dhcp", "adsl" }; - char * choice; - - results = ask_from_list_auto("Please choose the desired IP attribution.", bootprotos, &choice, "network", bootprotos_auto); - if (results != RETURN_OK) - return results; - - if (!strcmp(choice, "Static")) { - char * questions[] = { "IP of this machine", "IP of DNS", "IP of default gateway", "Netmask", NULL }; - char * questions_auto[] = { "ip", "dns", "gateway", "netmask" }; - static char ** answers = NULL; - struct in_addr addr; - - results = ask_from_entries_auto("Please enter the network information. (leave netmask blank for Internet standard)", - questions, &answers, 16, questions_auto, static_ip_callback); - if (results != RETURN_OK) - return setup_network_interface(intf); - - if (streq(answers[0], "") || !inet_aton(answers[0], &addr)) { - stg1_error_message("Invalid IP address."); - return setup_network_interface(intf); - } - memcpy(&intf->ip, &addr, sizeof(addr)); - - if (!inet_aton(answers[1], &dns_server)) { - log_message("invalid DNS"); - dns_server.s_addr = 0; /* keep an understandable state */ - } - - if (!inet_aton(answers[2], &gateway)) { - log_message("invalid gateway"); - gateway.s_addr = 0; /* keep an understandable state */ - } - - if ((streq(answers[3], "") && inet_aton(guess_netmask(answers[0]), &addr)) - || inet_aton(answers[3], &addr)) - memcpy(&intf->netmask, &addr, sizeof(addr)); - else { - stg1_error_message("Invalid netmask."); - return setup_network_interface(intf); - } - - *((uint32_t *) &intf->broadcast) = (*((uint32_t *) &intf->ip) & - *((uint32_t *) &intf->netmask)) | ~(*((uint32_t *) &intf->netmask)); - - inet_aton("255.255.255.255", &addr); - if (!memcmp(&addr, &intf->netmask, sizeof(addr))) { - log_message("netmask is 255.255.255.255 -> point to point device"); - intf->network = gateway; - intf->is_ptp = 1; - } else { - *((uint32_t *) &intf->network) = *((uint32_t *) &intf->ip) & *((uint32_t *) &intf->netmask); - intf->is_ptp = 0; - } - intf->boot_proto = BOOTPROTO_STATIC; - - if (configure_net_device(intf)) - return RETURN_ERROR; - - } else if (streq(choice, "DHCP")) { - results = perform_dhcp(intf); - - if (results == RETURN_BACK) - return setup_network_interface(intf); - if (results == RETURN_ERROR) - return results; - intf->boot_proto = BOOTPROTO_DHCP; - - if (configure_net_device(intf)) - return RETURN_ERROR; - - } else if (streq(choice, "ADSL")) { - results = perform_adsl(intf); - - if (results == RETURN_BACK) - return setup_network_interface(intf); - if (results == RETURN_ERROR) - return results; - } else - return RETURN_ERROR; - - return add_default_route(); -} - - -static enum return_type configure_network(struct interface_info * intf) -{ - char * dnshostname; - - if (hostname && domain) - return RETURN_OK; - - dnshostname = mygethostbyaddr(inet_ntoa(intf->ip)); - - if (dnshostname) { - hostname = strdup(dnshostname); - domain = strchr(strdup(hostname), '.') + 1; - log_message("got hostname and domain from dns entry, %s and %s", hostname, domain); - return RETURN_OK; - } - - log_message("reverse name lookup on self failed"); - - if (domain) - return RETURN_OK; - - if (dns_server.s_addr != 0) { - wait_message("Trying to resolve dns..."); - dnshostname = mygethostbyaddr(inet_ntoa(dns_server)); - remove_wait_message(); - } - - if (dnshostname) { - domain = strchr(strdup(dnshostname), '.') + 1; - log_message("got domain from DNS fullname, %s", domain); - } else { - enum return_type results; - char * questions[] = { "Host name", "Domain name", NULL }; - char * questions_auto[] = { "hostname", "domain" }; - static char ** answers = NULL; - char * boulet; - - log_message("reverse name lookup on DNS failed"); - - results = ask_from_entries_auto("I could not guess hostname and domain name; please fill in this information. " - "Valid answers are for example: `mybox' for hostname and `mynetwork.com' for " - "domain name, for a machine called `mybox.mynetwork.com' on the Internet.", - questions, &answers, 32, questions_auto, NULL); - if (results != RETURN_OK) - return results; - - hostname = answers[0]; - if ((boulet = strchr(hostname, '.')) != NULL) - boulet[0] = '\0'; - domain = answers[1]; - } - - return RETURN_OK; -} - - -static enum return_type bringup_networking(struct interface_info * intf) -{ - static struct interface_info loopback; - enum return_type results = RETURN_ERROR; - - my_insmod("af_packet", ANY_DRIVER_TYPE, NULL); - - while (results != RETURN_OK) { - results = setup_network_interface(intf); - if (results != RETURN_OK) - return results; - write_resolvconf(); - results = configure_network(intf); - } - - write_resolvconf(); /* maybe we have now domain to write also */ - - if (loopback.is_up == 0) { - int rc; - strcpy(loopback.device, "lo"); - loopback.is_ptp = 0; - loopback.is_up = 0; - loopback.ip.s_addr = htonl(0x7f000001); - loopback.netmask.s_addr = htonl(0xff000000); - loopback.broadcast.s_addr = htonl(0x7fffffff); - loopback.network.s_addr = htonl(0x7f000000); - rc = configure_net_device(&loopback); - if (rc) - return RETURN_ERROR; - } - - return RETURN_OK; -} - - -static char * interface_select(void) -{ - char ** interfaces, ** ptr; - char * descriptions[50]; - char * choice; - int i, count = 0; - enum return_type results; - - interfaces = get_net_devices(); - - ptr = interfaces; - while (ptr && *ptr) { - count++; - ptr++; - } - - if (count == 0) { - stg1_error_message("No NET device found.\n" - "Hint: if you're using a Laptop, note that PCMCIA Network adapters are now supported either with `pcmcia.img' or `network.img', please try both these bootdisks."); - i = ask_insmod(NETWORK_DEVICES); - if (i == RETURN_BACK) - return NULL; - return interface_select(); - } - - if (count == 1) - return *interfaces; - - i = 0; - while (interfaces[i]) { - descriptions[i] = get_net_intf_description(interfaces[i]); - i++; - } - - results = ask_from_list_comments_auto("Please choose the NET device to use for the installation.", - interfaces, descriptions, &choice, "interface", interfaces); - - if (results != RETURN_OK) - return NULL; - - return choice; -} - - - -/* -=-=-- */ - - -static enum return_type intf_select_and_up(void) -{ - static struct interface_info intf[20]; - static int num_interfaces = 0; - struct interface_info * sel_intf = NULL; - int i; - enum return_type results; - char * iface = interface_select(); - - if (iface == NULL) - return RETURN_BACK; - - for (i = 0; i < num_interfaces ; i++) - if (!strcmp(intf[i].device, iface)) - sel_intf = &(intf[i]); - - if (sel_intf == NULL) { - sel_intf = &(intf[num_interfaces]); - strcpy(sel_intf->device, iface); - sel_intf->is_up = 0; - num_interfaces++; - } - - results = bringup_networking(sel_intf); - - if (results == RETURN_OK) - save_netinfo(sel_intf); - - return results; -} - - - -enum return_type nfs_prepare(void) -{ - char * questions[] = { "NFS server name", DISTRIB_NAME " directory", NULL }; - char * questions_auto[] = { "server", "directory", NULL }; - static char ** answers = NULL; - char * nfsmount_location; - enum return_type results = intf_select_and_up(); - - if (results != RETURN_OK) - return results; - - do { - results = ask_from_entries_auto("Please enter the name or IP address of your NFS server, " - "and the directory containing the " DISTRIB_NAME " Distribution.", - questions, &answers, 40, questions_auto, NULL); - if (results != RETURN_OK || streq(answers[0], "")) { - unset_param(MODE_AUTOMATIC); /* we are in a fallback mode */ - return nfs_prepare(); - } - - nfsmount_location = malloc(strlen(answers[0]) + strlen(answers[1]) + 2); - strcpy(nfsmount_location, answers[0]); - strcat(nfsmount_location, ":"); - strcat(nfsmount_location, answers[1]); - - if (my_mount(nfsmount_location, IMAGE_LOCATION, "nfs", 0) == -1) { - stg1_error_message("I can't mount the directory from the NFS server."); - results = RETURN_BACK; - continue; - } - - if (access(IMAGE_LOCATION LIVE_LOCATION, R_OK)) { - stg1_error_message("That NFS volume does not seem to contain the " DISTRIB_NAME " Distribution."); - umount(IMAGE_LOCATION); - results = RETURN_BACK; - } - } - while (results == RETURN_BACK); - - log_message("found the " DISTRIB_NAME " Installation, good news!"); - - if (IS_SPECIAL_STAGE2) { - if (load_ramdisk() != RETURN_OK) { - stg1_error_message("Could not load program into memory."); - return nfs_prepare(); - } - } - - if (IS_RESCUE) - umount(IMAGE_LOCATION); - - method_name = strdup("nfs"); - return RETURN_OK; -} - - -enum return_type ftp_prepare(void) -{ - char * questions[] = { "FTP server", DISTRIB_NAME " directory", "Login", "Password", NULL }; - char * questions_auto[] = { "server", "directory", "user", "pass", NULL }; - static char ** answers = NULL; - enum return_type results; - - if (!ramdisk_possible()) { - stg1_error_message("FTP install needs more than %d Mbytes of memory (detected %d Mbytes).", - MEM_LIMIT_RAMDISK, total_memory()); - return RETURN_ERROR; - } - - results = intf_select_and_up(); - - if (results != RETURN_OK) - return results; - - do { - char location_full[500]; - int ftp_serv_response; - int fd, size; - - results = ask_from_entries_auto("Please enter the name or IP address of the FTP server, " - "the directory containing the " DISTRIB_NAME " Distribution, " - "and the login/pass if necessary (leave login blank for anonymous).", - questions, &answers, 40, questions_auto, NULL); - if (results != RETURN_OK || streq(answers[0], "")) { - unset_param(MODE_AUTOMATIC); /* we are in a fallback mode */ - return ftp_prepare(); - } - - log_message("FTP: trying to connect to %s", answers[0]); - - ftp_serv_response = ftp_open_connection(answers[0], answers[2], answers[3], ""); - if (ftp_serv_response < 0) { - log_message("FTP: error connect %d", ftp_serv_response); - if (ftp_serv_response == FTPERR_BAD_HOSTNAME) - stg1_error_message("Error: bad hostname."); - else if (ftp_serv_response == FTPERR_FAILED_CONNECT) - stg1_error_message("Error: failed to connect to remote host."); - else - stg1_error_message("Error: couldn't connect."); - results = RETURN_BACK; - continue; - } - strcpy(location_full, answers[1]); - strcat(location_full, get_ramdisk_realname()); - - log_message("FTP: trying to retrieve %s", location_full); - - fd = ftp_start_download(ftp_serv_response, location_full, &size); - if (fd < 0) { - log_message("FTP: error get %d", fd); - if (fd == FTPERR_PASSIVE_ERROR) - stg1_error_message("Error: error with passive connection."); - else if (fd == FTPERR_FILE_NOT_FOUND) - stg1_error_message("Error: file not found (%s).", location_full); - else if (fd == FTPERR_BAD_SERVER_RESPONSE) - stg1_error_message("Error: bad server response (server too busy?)."); - else - stg1_error_message("Error: couldn't retrieve Installation program."); - results = RETURN_BACK; - continue; - } - - log_message("FTP: size of download %d bytes", size); - - results = load_ramdisk_fd(fd, size); - if (results == RETURN_OK) - ftp_end_data_command(ftp_serv_response); - else - return results; - - method_name = strdup("ftp"); - add_to_env("HOST", answers[0]); - add_to_env("PREFIX", answers[1]); - if (strcmp(answers[2], "")) { - add_to_env("LOGIN", answers[2]); - add_to_env("PASSWORD", answers[3]); - } - } - while (results == RETURN_BACK); - - return RETURN_OK; -} - -enum return_type http_prepare(void) -{ - char * questions[] = { "HTTP server", DISTRIB_NAME " directory", NULL }; - char * questions_auto[] = { "server", "directory", NULL }; - static char ** answers = NULL; - enum return_type results; - - if (!ramdisk_possible()) { - stg1_error_message("HTTP install needs more than %d Mbytes of memory (detected %d Mbytes).", - MEM_LIMIT_RAMDISK, total_memory()); - return RETURN_ERROR; - } - - results = intf_select_and_up(); - - if (results != RETURN_OK) - return results; - - do { - char location_full[500]; - int fd, size; - - results = ask_from_entries_auto("Please enter the name or IP address of the HTTP server, " - "and the directory containing the " DISTRIB_NAME " Distribution.", - questions, &answers, 40, questions_auto, NULL); - if (results != RETURN_OK || streq(answers[0], "")) { - unset_param(MODE_AUTOMATIC); /* we are in a fallback mode */ - return http_prepare(); - } - - strcpy(location_full, answers[1]); - strcat(location_full, get_ramdisk_realname()); - - log_message("HTTP: trying to retrieve %s from %s", location_full, answers[0]); - - fd = http_download_file(answers[0], location_full, &size); - if (fd < 0) { - log_message("HTTP: error %d", fd); - if (fd == FTPERR_FAILED_CONNECT) - stg1_error_message("Error: couldn't connect to server."); - else - stg1_error_message("Error: couldn't get file (%s).", location_full); - results = RETURN_BACK; - continue; - } - - log_message("HTTP: size of download %d bytes", size); - - if (load_ramdisk_fd(fd, size) != RETURN_OK) - return RETURN_ERROR; - - method_name = strdup("http"); - sprintf(location_full, "http://%s/%s", answers[0], answers[1]); - add_to_env("URLPREFIX", location_full); - } - while (results == RETURN_BACK); - - return RETURN_OK; - -} -- cgit v1.2.1