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authorOlivier Blin <oblin@mandriva.org>2005-08-28 21:52:41 +0000
committerOlivier Blin <oblin@mandriva.org>2005-08-28 21:52:41 +0000
commita0c738334bdafc7eb877f19d46f51709f0471efa (patch)
treee7bf1e4ea81ec9af929d15784d54aeee96ecc2e3 /mdk-stage1
parentc33096066f32297bbc275ea820531fe55e45b705 (diff)
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ka support (initially from Antoine Ginies and Erwan Velu)
Diffstat (limited to 'mdk-stage1')
-rw-r--r--mdk-stage1/ka.c193
-rw-r--r--mdk-stage1/ka.h20
2 files changed, 213 insertions, 0 deletions
diff --git a/mdk-stage1/ka.c b/mdk-stage1/ka.c
new file mode 100644
index 000000000..d3c98e2fc
--- /dev/null
+++ b/mdk-stage1/ka.c
@@ -0,0 +1,193 @@
+/*
+ * Copyright 2005 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.
+ *
+ */
+
+#include "ka.h"
+#include <sys/mount.h>
+#include "mount.h"
+#include <sys/wait.h>
+#include <dirent.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "config-stage1.h"
+#include "frontend.h"
+#include "log.h"
+#include "tools.h"
+
+struct in_addr next_server = { 0 };
+
+#if 0
+static void save_stuff_for_rescue(void)
+{
+ copy_file("/etc/resolv.conf", STAGE2_LOCATION "/etc/resolv.conf", NULL);
+}
+#endif
+
+static void my_pause(void) {
+ unsigned char t;
+ fflush(stdout);
+ read(0, &t, 1);
+}
+
+static enum return_type ka_wait_for_stage2(void)
+{
+ char * ramdisk = "/dev/ram3"; /* warning, verify that this file exists in the initrd*/
+ char * ka_launch[] = { "/ka/ka-d-client", "-w","-s","getstage2","-e","(cd /tmp/stage2; tar --extract --read-full-records --same-permissions --numeric-o wner --sparse --file - )", NULL }; /* The command line for ka_launch */
+ char * mkfs_launch[] = { "/sbin/mke2fs", ramdisk, NULL}; /* The mkfs command for formating the ramdisk */
+
+ log_message("KA: Preparing to receive stage 2....");
+ int pida, wait_status;
+
+ if (!(pida = fork())) { /* Forking current process for running mkfs */
+ // close(1);
+ // close(2);
+ execv(mkfs_launch[0], mkfs_launch); /* Formating the ramdisk */
+ printf("KA: Can't execute %s\n<press Enter>\n", mkfs_launch[0]);
+ my_pause();
+ return KAERR_CANTFORK;
+ }
+ while (wait4(-1, &wait_status, 0, NULL) != pida) {}; /* Waiting the end of mkfs */
+
+ if (my_mount(ramdisk, STAGE2_LOCATION, "ext2", 1)) {/* Trying to mount the ramdisk */
+ return RETURN_ERROR;
+ }
+
+ log_message("KA: Waiting for stage 2....");
+ wait_message("Waiting for rescue from KA server");
+ pid_t pid; /* Process ID of the child process */
+ pid_t wpid; /* Process ID from wait() */
+ int status; /* Exit status from wait() */
+
+ pid = fork();
+ if ( pid == -1 ) {
+ fprintf(stderr, "%s: Failed to fork()\n", strerror(errno));
+ exit(13);
+ } else if ( pid == 0 ) {
+ fprintf(stderr, "%s: Failed to fork()\n", strerror(errno));
+ exit(13);
+ } else if ( pid == 0 ) {
+ execv(ka_launch[0], ka_launch);
+ } else {
+ // wpid = wait(&status); /* Child's exit status */
+ wpid = wait4(-1, &status, 0, NULL);
+ if ( wpid == -1 ) {
+ fprintf(stderr,"%s: wait()\n", strerror(errno));
+ return RETURN_ERROR;
+ } else if ( wpid != pid )
+ abort();
+ else {
+ if ( WIFEXITED(status) ) {
+ printf("Exited: $? = %d\n", WEXITSTATUS(status));
+ } else if ( WIFSIGNALED(status) ) {
+ printf("Signal: %d%s\n", WTERMSIG(status), WCOREDUMP(status) ? " with core file." : "");
+ }
+ }
+ }
+
+ remove_wait_message();
+ return RETURN_OK;
+ // if (!(pid = fork())) { /* Froking current process for running ka-deploy (client side) */
+ // close(1); /* Closing stdout */
+ // close(2); /* Closing stderr */
+ // execve(ka_launch[0], ka_launch,grab_env()); /* Running ka-deploy (client side) */
+ // printf("KA: Can't execute %s\n<press Enter>\n", ka_launch[0]);
+ // log_message("KA: Can't execute %s\n<press Enter>\n", ka_launch[0]);
+ // my_pause();
+ // return KAERR_CANTFORK;
+ //}
+
+ //while (wait4(-1, &wait_status, 0, NULL) != pid) {}; /* Waiting the end of duplication */
+ // log_message("kalaunch ret %d\n", WIFEXITED(wait_status));
+ // remove_wait_message();
+ //sleep(100000);
+ // return RETURN_OK;
+}
+
+enum return_type perform_ka(void) {
+ enum return_type results;
+ int server_failure = 1; /* Number of time we've failed to find a ka server */
+ FILE *f = fopen ("/ka/tftpserver","w");
+
+ if (f != NULL) {
+ /* Writing the NEXT_SERVER value of the DHCP Request in the /ka/tftpserver file */
+ fprintf(f,"%s\n",inet_ntoa(next_server));
+ fclose(f);
+ }
+
+ log_message("KA: Trying to retrieve stage2 from server");
+ log_message("KA: ka_wait_for_stage2");
+ do {
+ /* We are trying to get a valid stage 2 (rescue) */
+ results=ka_wait_for_stage2();
+ if (results != RETURN_OK) {
+ return results;
+ } else {
+ /* Trying to open STAGE2_LOCATION/ka directory */
+ char dir[255] = STAGE2_LOCATION;
+ strcat(dir,"/ka");
+ DIR *dp = opendir(dir);
+
+ /* Does the STAGE2_LOCATION/ka directory exists ? = Does the rescue with ka well downloaded ?*/
+ if (!dp) {
+ log_message("KA: Server not found !");
+ /* Be sure that the STAGE2_LOCATION isn't mounted after receiving a wrong rescue */
+ if (umount (STAGE2_LOCATION)) {
+ log_perror("KA: Unable to umount STAGE2");
+ }
+ int cpt;
+
+ if (server_failure++ == KA_MAX_RETRY){
+ /* if the KA server can't be reach KA_MAX_RETRY times */
+ char * reboot_launch[] = { "/sbin/reboot", NULL};
+ for (cpt=5; cpt>0; cpt--) {
+ wait_message("!!! Can't reach a valid KA server !!! (Rebooting in %d sec)",cpt);
+ sleep (1);
+ }
+ /* Rebooting the computer to avoid infinite loop on ka mode */
+ execv(reboot_launch[0], reboot_launch);
+ }
+
+ for (cpt=5; cpt>0; cpt--) {
+ wait_message("KA server not found ! (Try %d/%d in %d sec)",server_failure,KA_MAX_RETRY,cpt);
+ sleep (1);
+ }
+ remove_wait_message();
+ /* We should try another time*/
+ results=RETURN_BACK;
+ continue;
+ }
+
+ if (dp) {
+ log_message("KA: Stage 2 downloaded successfully");
+ closedir(dp); /* Closing the /ka directory */
+ server_failure=1; /* Resetting server_failure */
+ results = RETURN_OK;
+ }
+ }
+
+ log_message("KA: Preparing chroot");
+ return RETURN_OK;
+
+ // if (IS_RESCUE) { /* if we are in rescue mode */
+ // save_stuff_for_rescue(); /* Saving resolve.conf */
+ // if (umount (STAGE2_LOCATION)) { /* Unmounting STAGE2 elseif kernel can't mount it ! */
+ // log_perror("KA: Unable to umount STAGE2");
+ // return RETURN_ERROR;
+ // }
+ // }
+ } while (results == RETURN_BACK);
+
+ // method_name = strdup("ka");
+ return RETURN_OK;
+}
diff --git a/mdk-stage1/ka.h b/mdk-stage1/ka.h
new file mode 100644
index 000000000..3c083af4f
--- /dev/null
+++ b/mdk-stage1/ka.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2005 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.
+ *
+ */
+
+#ifndef _KA_H_
+#define _KA_H_
+
+#define KAERR_CANTFORK -20
+
+enum return_type perform_ka(void);
+
+#endif