/* * modules.c - module loading functionality * * Erik Troan * Matt Wilson * Michael Fulbright * Jeremy Katz * * Copyright 1999 - 2003 Red Hat, Inc. * * This software may be freely redistributed under the terms of the GNU * General 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include "loader.h" #include "log.h" #include "modules.h" #include "modstubs.h" #include "windows.h" #include "usb.h" #include "../isys/cpio.h" /* boot flags */ extern uint64_t flags; static int writeModulesConf(moduleList list, char *conf); static struct extractedModule * extractModules (char * const * modNames, struct extractedModule * oldPaths, struct moduleBallLocation * location); /* pass in the type of device (eth or tr) that you're looking for */ static int ethCount(const char * type) { int fd; char buf[16384]; int i; char * chptr; int count = 0; fd = open("/proc/net/dev", O_RDONLY); i = read(fd, buf, sizeof(buf) - 1); close(fd); buf[i] = '\0'; /* skip first two header lines */ chptr = strchr(buf, '\n') + 1; chptr = strchr(chptr, '\n') + 1; while (chptr) { while (*chptr && isspace(*chptr)) chptr++; if (!strncmp(chptr, type, strlen(type))) count++; chptr = strchr(chptr, '\n'); if (chptr) chptr++; } return count; } static int scsiCount(char *conf) { FILE *f; int count = 0; f = fopen(conf, "r"); if (!f) return 0; do { char *buf = NULL; size_t n = 0; if (getline(&buf, &n, f) < 0) break; if (!strncmp(buf, "alias scsi_hostadapter", 22)) count++; free(buf); } while (1); fclose(f); return count; } static int scsiDiskCount(void) { struct device ** devices; int i = 0, count = 0; devices = probeDevices(CLASS_HD, BUS_SCSI, PROBE_LOADED); if (devices) { for (i=0; devices[i]; i++, count++); free(devices); } /* have to probe for usb floppies too */ devices = probeDevices(CLASS_FLOPPY, BUS_SCSI, PROBE_LOADED); if (devices) { for (i=0; devices[i]; i++, count++); free(devices); } /* have to probe for usb cdrom too */ devices = probeDevices(CLASS_CDROM, BUS_SCSI, PROBE_LOADED); if (devices) { for (i=0; devices[i]; i++, count++); free(devices); } return count; } int mlReadLoadedList(moduleList * mlp) { int fd; char * start; char * end; char buf[4096]; struct stat sb; int i; moduleList ml; if ((fd = open("/proc/modules", O_RDONLY)) < 0) return -1; fstat(fd, &sb); i = read(fd, buf, sizeof(buf)); buf[i] = '\0'; close(fd); ml = malloc(sizeof(*ml)); ml->numModules = 0; start = buf; while (start && *start) { end = start; while (!isspace(*end) && *end != '\n') end++; *end = '\0'; ml->mods[ml->numModules].name = strdup(start); ml->mods[ml->numModules].args = NULL; ml->mods[ml->numModules].path = NULL; ml->mods[ml->numModules].weLoaded = 0; *end = ' '; ml->numModules++; start = strchr(end, '\n'); if (start) start++; } *mlp = ml; return 0; } /* this leaks memory if there is a loop in the modules. oh well. */ char ** tsortModules(moduleList modLoaded, moduleDeps ml, char ** args, int depth, char *** listPtr, int * listSizePtr) { int listSize; char ** list; char ** next; char ** deps; if (!depth) { int count; listSize = 5; list = malloc((listSize + 1) * sizeof(*list)); *list = NULL; listPtr = &list; listSizePtr = &listSize; for (deps = args, count = 0; *deps; deps++, count++); } else { list = *listPtr; listSize = *listSizePtr; } if (depth++ > 100) { return NULL; } while (*args) { /* don't load it twice */ next = list; while (*next && strcmp(*next, *args)) next++; if (*next || mlModuleInList(*args, modLoaded)) { args++; continue; } /* load everything this depends on */ deps = mlGetDeps(ml, *args); if (deps) { if (!tsortModules(modLoaded, ml, deps, depth, listPtr, listSizePtr)) return NULL; list = *listPtr; listSize = *listSizePtr; } /* add this to the list */ next = list; while (*next) next++; if ((next - list) >= listSize) { int count = next - list; listSize += 10; /* leave room for a NULL */ list = realloc(list, sizeof(*list) * (listSize + 1)); *listSizePtr = listSize; *listPtr = list; next = list + count; } next[0] = *args; next[1] = NULL; args++; } return list; } int mlModuleInList(const char * modName, moduleList list) { int i; if (!list) return 0; for(i = 0; i < list->numModules; i++) if (!strcmp(list->mods[i].name, modName)) return 1; return 0; } static struct loadedModuleInfo * getLoadedModuleInfo(moduleList modLoaded, const char * modName) { int i = 0; for (i = 0; i < modLoaded->numModules; i++) if (!strcmp(modLoaded->mods[i].name, modName)) return &modLoaded->mods[i]; return NULL; } struct moduleOptions { char *name; int numopts; char **options; }; static struct moduleOptions * modopts = NULL; static int nummodopts = -1; /* read module options out of /proc/cmdline and into a structure */ static void readModuleOpts() { int fd; size_t len = 0; char buf[1024]; char *start, *end, *sep; int found = 0, i; nummodopts = 0; if ((fd = open("/proc/cmdline", O_RDONLY)) < 0) return; len = read(fd, buf, sizeof(buf) - 1); close(fd); buf[len] = '\0'; start = buf; while (start) { end = strstr(start, " "); if (end) *end = '\0'; sep = strstr(start, "="); if (sep == NULL) { if (!end) break; start = end + 1; continue; } sep = strstr(start, "."); if (sep == NULL) { if (!end) break; start = end + 1; continue; } *sep = '\0'; sep++; found = 0; for (i = 0; i < nummodopts; i++) { if (strncmp(modopts[i].name, start, strlen(modopts[i].name))) continue; modopts[i].numopts++; found = 1; break; } if (found == 0) { modopts = realloc(modopts, sizeof(*modopts) * (nummodopts + 1)); modopts[nummodopts].name = strdup(start); modopts[nummodopts].numopts = 1; modopts[nummodopts++].options = NULL; } modopts[i].options = realloc(modopts[i].options, sizeof(modopts[i].options) * (modopts[i].numopts + 1)); modopts[i].options[modopts[i].numopts - 1] = strdup(sep); if (!end) break; start = end + 1; } /* null-terminate options for each module */ for (i = 0; i < nummodopts; i++) { modopts[i].options[modopts[i].numopts] = NULL; } } /* look for options for a specific module from the command line */ static char ** cmdLineModuleOpts(const char *modName) { int i; if (nummodopts == -1) readModuleOpts(); for (i = 0; i < nummodopts; i++) { if (strncmp(modName, modopts[i].name, strlen(modName))) continue; return modopts[i].options; } return NULL; } /* load a single module. this is the real workhorse of loading modules */ static int loadModule(const char * modName, struct extractedModule * path, moduleList modLoaded, char ** args, moduleInfoSet modInfo) { char fileName[300]; char ** argPtr, ** newArgs, ** arg, ** cmdlineArgs; struct moduleInfo * mi = NULL; int deviceCount = -1; int popWindow = 0; int rc, child, i, status; static int usbWasLoaded = 0; /* don't need to load a module that's already loaded */ if (mlModuleInList(modName, modLoaded)) return 0; if (modInfo && (mi = findModuleInfo(modInfo, modName))) { if ((mi->major == DRIVER_NET) && (mi->minor == DRIVER_MINOR_ETHERNET)) { deviceCount = ethCount("eth"); } else if ((mi->major == DRIVER_NET) && (mi->minor == DRIVER_MINOR_TR)) { deviceCount = ethCount("tr"); } if (mi->major == DRIVER_SCSI) { deviceCount = scsiDiskCount(); if (!FL_CMDLINE(flags)) { startNewt(); scsiWindow(modName); popWindow = 1; } } } /* look to see if there are options for this module specified on * the command line. should be specified in the form of * module.option=value */ cmdlineArgs = cmdLineModuleOpts(modName); if (!args && cmdlineArgs) { args = cmdlineArgs; } else if (cmdlineArgs) { for (i=0, arg = args; *arg; arg++, i++); for (arg = cmdlineArgs; *arg; arg++, i++); args = realloc(args, sizeof(*newArgs) * (i + 1)); for (i=0, arg = args; *arg; arg++, i++); for (arg = cmdlineArgs; *arg; arg++, i++) args[i] = strdup(*arg); args[i] = NULL; } sprintf(fileName, "%s.ko", modName); for (argPtr = args; argPtr && *argPtr; argPtr++) { strcat(fileName, " "); strcat(fileName, *argPtr); } if (FL_TESTING(flags)) { logMessage(INFO, "would have insmod %s (%s)", path->path, fileName); rc = 0; } else { if (!(child = fork())) { int fd = open("/dev/tty3", O_RDWR); dup2(fd, 0); dup2(fd, 1); dup2(fd, 2); close(fd); rc = insmod(path->path, NULL, args); _exit(rc); } waitpid(child, &status, 0); if (!WIFEXITED(status) || (WIFEXITED(status) && WEXITSTATUS(status))) { rc = 1; } else { rc = 0; } } if (!rc) { int num = modLoaded->numModules; modLoaded->mods[num].name = strdup(modName); modLoaded->mods[num].weLoaded = 1; modLoaded->mods[num].path = path->location ? strdup(path->location) : NULL; modLoaded->mods[num].firstDevNum = -1; modLoaded->mods[num].lastDevNum = -1; modLoaded->mods[num].written = 0; if (mi) { modLoaded->mods[num].major = mi->major; modLoaded->mods[num].minor = mi->minor; if (deviceCount >= 0) { if ((mi->major == DRIVER_NET) && (mi->minor == DRIVER_MINOR_ETHERNET)) { modLoaded->mods[num].firstDevNum = deviceCount; modLoaded->mods[num].lastDevNum = ethCount("eth") - 1; } else if ((mi->major == DRIVER_NET) && (mi->minor == DRIVER_MINOR_TR)) { modLoaded->mods[num].firstDevNum = deviceCount; modLoaded->mods[num].lastDevNum = ethCount("tr") - 1; } else if (mi->major == DRIVER_SCSI) { /* FIXME: this is a hack, but usb-storage seems to * like to take forever to enumerate. try to * give it some time */ if (!strcmp(modName, "usb-storage") && !usbWasLoaded) { int slp; usbWasLoaded = 1; for (slp = 0; slp < 10; slp++) { if (scsiDiskCount() > deviceCount) break; sleep(2); } logMessage(DEBUGLVL, "slept %d seconds", slp * 2); } modLoaded->mods[num].firstDevNum = deviceCount; modLoaded->mods[num].lastDevNum = scsiDiskCount(); } } } else { modLoaded->mods[num].major = DRIVER_NONE; modLoaded->mods[num].minor = DRIVER_MINOR_NONE; } if (args) { for (i=0, arg = args; *arg; arg++, i++); newArgs = malloc(sizeof(*newArgs) * (i + 1)); for (i = 0, arg = args; *arg; arg++, i++) newArgs[i] = strdup(*arg); newArgs[i] = NULL; } else { newArgs = NULL; } modLoaded->mods[modLoaded->numModules++].args = newArgs; } if (popWindow) { sleep(1); newtPopWindow(); } return rc; } /* * This takes the list of modules we're going to load and sorts * some to be at the end on an arbitrary criteria (eg, fiberchannel). * This should help the problems where people's FC controller ends up being * sda and they then can't boot or otherwise have things being strange. * And yes, this is a hack. *sigh* */ static char ** lateModuleSort(char **allmods, int num) { int i, j, k, l; char ** modList; /* the qlogic drivers are usually for fibrechannel according to coughlan * as is lpfc. ibmvscsic needs to be sure to be loaded after ipr on * power5 due to bug #137920 */ char * lateList[] = { "qla2100", "qla2200", "qla2300", "qla2322", "qla6312", "qla6322", "qla2400", "qla2xxx", "lpfc", "ibmvscsic", "pata_pcmcia", NULL }; char ** lateMods; for (i=0; allmods[i]; i++) {} modList = malloc(sizeof(*modList) * (num + i + 1)); lateMods = alloca(sizeof(*lateMods) * 10); lateMods = memset(lateMods, 0, 10); i = j = k = l = 0; for (; allmods[i]; i++) { int late = 0; for (j = 0; lateList[j]; j++) { if (!strcmp(allmods[i], lateList[j])) { lateMods[l++] = allmods[i]; late = 1; break; } } if (!late) modList[k++] = allmods[i]; } for (i = 0; i < l; i++) { modList[k++] = lateMods[i]; } modList[k] = NULL; return modList; } /* handle loading a set of modules including their dependencies. also has * a nasty evil hack for handling usb-storage removal/reloading for scsi * device ordering. */ /* JKFIXME: the location argument is a hack to handle modules * without module-info that I know need to be loaded from other than * /modules/modules.cgz. should module-info be extended to cover * *ALL* modules? this would probably want for auto module-info generation */ static int doLoadModules(const char * origModNames, moduleList modLoaded, moduleDeps modDeps, moduleInfoSet modInfo, const char * argModule, char ** args) { char * modNames; char * start, * next, * end; char ** initialList; char ** list, ** l; char items[1024] = ""; /* 1024 characters should be enough... */ struct extractedModule * paths, * p; struct loadedModuleInfo * mod; int i; int reloadUsbStorage; struct moduleInfo * mi; start = modNames = alloca(strlen(origModNames) + 1); strcpy(modNames, origModNames); next = start; i = 1; while (*next) { if (*next == ':') i++; next++; } initialList = alloca(sizeof(*initialList) * (i + 1)); i = 0; while (start) { next = end = strchr(start, ':'); if (next) { *end = '\0'; next++; } if (mlModuleInList(start, modLoaded)) { /* already loaded, we don't need to load it again */ start = next; continue; } initialList[i++] = start; start = next; } initialList[i] = NULL; list = tsortModules(modLoaded, modDeps, initialList, 0, NULL, NULL); if (!list) { logMessage(ERROR, "loop in module dependencies; not inserting"); return 1; } list = lateModuleSort(list, i); for (i = 0; list[i]; i++) { strcat(items, " "); strcat(items, list[i]); } logMessage(INFO, "modules to insert%s", items); paths = NULL; reloadUsbStorage = 0; if (modInfo) { for (i = 0; list[i]; i++) { mi = findModuleInfo(modInfo, list[i]); if (mi) { if (mi->locationID) paths = extractModules(list, paths, mi->locationID); if (mi->major == DRIVER_SCSI) { if ((mod = getLoadedModuleInfo(modLoaded, "usb-storage")) && mod->firstDevNum != mod->lastDevNum) { logMessage(DEBUGLVL, "setting reloadUsbStorage"); reloadUsbStorage = 1; } } } } } paths = extractModules(list, paths, NULL); i = 0; if (!paths) { logMessage(ERROR, "no modules found -- aborting insertion"); return i; } *items = '\0'; for (l = list, p = paths; *l && p; l++, p++) { if (!p->path) { if (*items) strcat(items, " "); strcat(items, *l); i++; } } if (*items) logMessage(DEBUGLVL, "module(s) %s not found", items); if (reloadUsbStorage) { mod = getLoadedModuleInfo(modLoaded, "usb-storage"); if (!mod) { fprintf(stderr, "ERROR: %s was in module list, but can't be found now", "usb-storage"); exit(1); } if (mod->lastDevNum != scsiDiskCount()) { logMessage(WARNING, "usb-storage isn't claiming the last scsi dev (%d vs %d)", modLoaded->mods[i].lastDevNum, scsiDiskCount()); /* JKFIXME: return? or not, because of firewire */ } /* here we need to save the state of stage2 */ logMessage(INFO, "unloading module usb-storage"); removeLoadedModule("usb-storage", modLoaded); /* JKFIXME: here are the big hacks... for now, just described. * 1) figure out which scsi devs are claimed by usb-storage. * if lastScsiDev == usb-storage->lastDev, * lastScsiDev = usb->firstDev. else, log that we're screwed. * 2) if stage2 is cdrom and mounted, umount stage2, umount cdrom * 3) rmmod usb-storage */ } /* insert the modules now */ for(l = list, p = paths; paths && *l; l++, p++) { if (!p->path) /* no path for this module */ continue; if (loadModule(*l, p, modLoaded, (argModule && !strcmp(argModule, *l)) ? args : NULL, modInfo)) { logMessage(ERROR, "failed to insert %s", p->path); } else { logMessage(INFO, "inserted %s", p->path); } } if (reloadUsbStorage) { logMessage(INFO, "reloading module usb-storage"); mlLoadModule("usb-storage", modLoaded, modDeps, modInfo, NULL); /* JKFIXME: here's the rest of the hacks. basically do the reverse * of what we did before. */ } if (!FL_TESTING(flags)) writeModulesConf(modLoaded, "/tmp/modprobe.conf"); for (p = paths; p->path; p++) { unlink(p->path); free(p->path); if (p->location) free(p->location); } free(paths); free(list); logMessage(INFO, "load module set done"); return i; } /* load a module with a given list of arguments */ int mlLoadModule(const char * module, moduleList modLoaded, moduleDeps modDeps, moduleInfoSet modInfo, char ** args) { return doLoadModules(module, modLoaded, modDeps, modInfo, module, args); } /* loads a : separated list of modules */ int mlLoadModuleSet(const char * modNames, moduleList modLoaded, moduleDeps modDeps, moduleInfoSet modInfo) { return doLoadModules(modNames, modLoaded, modDeps, modInfo, NULL, NULL); } static int removeHostAdapter(char *conf, char *name) { FILE *in = NULL, *out = NULL; int nhbas = 0; char *newconf = NULL; int ret = 0; if (asprintf(&newconf, "%s.new", conf) < 0) return ret; if (!(out = fopen(newconf, "w+"))) { free(newconf); return ret; } if (!(in = fopen(conf, "r"))) { fclose(out); unlink(newconf); free(newconf); return ret; } do { size_t n = 0; char *buf = NULL; int d = 0, m = 0; if (getline(&buf, &n, in) < 0) break; if (ret || strncmp(buf, "alias scsi_hostadapter", 22)) { fputs(buf, out); free(buf); continue; } if (buf[22] != ' ') sscanf(buf+22, "%d %n", &d, &m); else sscanf(buf+22, " %n", &m); if (!ret) { if (strncmp(buf+22+m, name, strlen(name))) { if (nhbas) fprintf(out, "alias scsi_hostadapter%d %s", nhbas, buf+22+m); else fprintf(out, "alias scsi_hostadapter %s", buf+22+m); nhbas++; } else { logMessage(INFO, "removed usb-storage from modprobe.conf"); ret++; } } free(buf); } while (1); fclose(in); fclose(out); unlink(conf); rename(newconf, conf); free(newconf); return ret; } static int writeModulesConf(moduleList list, char *conf) { int i, ret; struct loadedModuleInfo * lm; int ethNum; int scsiNum; char buf[16384], buf2[512]; /* these will be enough for anyone... */ char * tmp, ** arg; int fd; static int once = 0; if (!once) once = removeHostAdapter(conf, "usb-storage"); scsiNum = scsiCount(conf); if (!list) return 0; fd = open("/tmp/modprobe.conf", O_WRONLY | O_CREAT | O_APPEND, 0666); if (fd == -1) { logMessage(ERROR, "error appending to /tmp/modprobe.conf: %s\n", strerror(errno)); return 0; } for (i = 0, lm = list->mods; i < list->numModules; i++, lm++) { if (!lm->weLoaded) continue; if (lm->written) continue; if (lm->major != DRIVER_NONE) { strcpy(buf, "alias "); switch (lm->major) { case DRIVER_SCSI: /* originally set to # of scsi_hostadapter already in * /tmp/modprobe.conf. then we increment ourselves */ if (scsiNum) sprintf(buf2, "scsi_hostadapter%d ", scsiNum); else strcpy(buf2, "scsi_hostadapter "); scsiNum++; strcat(buf, buf2); strcat(buf, lm->name); strcat(buf, "\n"); ret = write(fd, buf, strlen(buf)); lm->written = 1; break; case DRIVER_NET: switch(lm->minor) { case DRIVER_MINOR_ETHERNET: tmp = "eth"; break; case DRIVER_MINOR_TR: tmp = "tr"; break; default: logMessage(WARNING, "got net driver that's not ethernet or tr"); tmp = ""; } if (lm->firstDevNum > lm->lastDevNum) break; for (ethNum = lm->firstDevNum; ethNum <= lm->lastDevNum; ethNum++) { sprintf(buf2, "%s%d ", tmp, ethNum); if (ethNum != lm->lastDevNum) { strcat(buf2, lm->name); strcat(buf2, "\nalias "); } strcat(buf, buf2); } strcat(buf, lm->name); strcat(buf, "\n"); ret = write(fd, buf, strlen(buf)); lm->written = 1; break; default: break; } } if (lm->args) { strcpy(buf, "options "); strcat(buf, lm->name); for (arg = lm->args; *arg; arg++) { strcat(buf, " "); strcat(buf, *arg); } strcat(buf, "\n"); ret = write(fd, buf, strlen(buf)); lm->written = 1; } } close(fd); return 0; } /* writes out /tmp/scsidisks with a scsi disk / module correspondence. * format is sd%c adapter */ void writeScsiDisks(moduleList list) { int i, fd, num, ret; struct loadedModuleInfo * lm; char buf[512]; if (!list) return; if ((fd = open("/tmp/scsidisks", O_WRONLY | O_CREAT, 0666)) == -1) { logMessage(ERROR, "error opening /tmp/scsidisks: %s", strerror(errno)); return; } for (i = 0, lm = list->mods; i < list->numModules; i++, lm++) { if (!lm->weLoaded) continue; if (lm->major != DRIVER_SCSI) continue; for (num = lm->firstDevNum; num < lm->lastDevNum; num++) { if (num < 26) sprintf(buf, "sd%c\t%s\n", 'a' + num, lm->name); else { unsigned int one, two; one = num / 26; two = num % 26; sprintf(buf, "sd%c%c\t%s\n", 'a' + one - 1, 'a' + two, lm->name); } ret = write(fd, buf, strlen(buf)); } } close(fd); return; } char * getModuleLocation(int version) { struct utsname u; static char * arch = NULL; const char * archfile = "/etc/arch"; char * ret; int rc; uname(&u); if (!arch && !access(archfile, R_OK)) { struct stat sb; int fd; stat(archfile, &sb); arch = malloc(sb.st_size + 1); fd = open(archfile, O_RDONLY); rc = read(fd, arch, sb.st_size); if (arch[sb.st_size -1 ] == '\n') sb.st_size--; arch[sb.st_size] = '\0'; close(fd); } else if (!arch) { logMessage(WARNING, "can't find arch file %s, defaulting to %s", archfile, u.machine); arch = strdup(u.machine); } if (version == 1) { ret = malloc(strlen(u.release) + strlen(arch) + 2); sprintf(ret, "%s/%s", u.release, arch); } else { ret = malloc(strlen(u.release) + 1); strcpy(ret, u.release); } logMessage(DEBUGLVL, "getModuleLocation: %s", ret); return ret; } /* JKFIXME: needs a way to know about module locations. also, we should * extract them to a ramfs instead of /tmp */ static struct extractedModule * extractModules (char * const * modNames, struct extractedModule * oldPaths, struct moduleBallLocation * location) { gzFile fd; char * ballPath; struct cpioFileMapping * map; int i, numMaps, rc; char * const * m; char fn[255]; const char * failedFile; struct stat sb; char * modpath; if (!location) { ballPath = strdup("/modules/modules.cgz"); modpath = getModuleLocation(CURRENT_MODBALLVER); } else { ballPath = strdup(location->path); modpath = getModuleLocation(location->version); } fd = gunzip_open(ballPath); if (!fd) { logMessage(ERROR, "failed to open %s", ballPath); free(ballPath); return NULL; } for(m = modNames, i = 0; *m; i++, m++); map = alloca(sizeof(*map) * i); memset(map, 0, sizeof(*map) * i); if (!oldPaths) /* +1 NULL to terminate the list */ oldPaths = calloc(i + 1, sizeof(*oldPaths)); for (m = modNames, i = 0, numMaps = 0; *m; m++, i++) { /* if we don't know the path of this module yet, "figure" it out */ if (!oldPaths[i].path) { map[numMaps].archivePath = alloca(strlen(modpath) + strlen(*m) + 25); sprintf(map[numMaps].archivePath, "%s/%s.ko", modpath, *m); map[numMaps].fsPath = alloca(10 + strlen(*m)); sprintf(map[numMaps].fsPath, "/tmp/%s.ko", *m); unlink(map[numMaps].fsPath); map[numMaps].mapFlags = CPIO_MAP_PATH; numMaps++; } } if (!numMaps) { gunzip_close(fd); free(ballPath); free(modpath); return oldPaths; } qsort(map, numMaps, sizeof(*map), myCpioFileMapCmp); rc = myCpioInstallArchive(fd, map, numMaps, NULL, NULL, &failedFile); gunzip_close(fd); for (m = modNames, i = 0, numMaps = 0; *m; m++, i++) { if (!oldPaths[i].path) { sprintf(fn, "/tmp/%s.ko", modNames[i]); if (!stat(fn, &sb)) { oldPaths[i].path = strdup(fn); /* JKFIXME: this is copied from the old stuff -- do we really need it? */ if (location && location->path) { oldPaths[i].location = strdup(location->path); if (location->title) logMessage(INFO, "module %s found on driver disk %s", modNames[i], location->title); logMessage(INFO, "loaded %s from %s", modNames[i], location->path); } else logMessage(INFO, "loaded %s from /modules/modules.cgz", modNames[i]); } numMaps++; } } free(ballPath); free(modpath); return oldPaths; } /* remove a module which has been loaded, including removal from the * modLoaded struct */ int removeLoadedModule(const char * modName, moduleList modLoaded) { int status, rc = 0; pid_t child; struct loadedModuleInfo * mod; mod = getLoadedModuleInfo(modLoaded, modName); if (!mod) return 0; /* since we're unloading, set the devs to 0. this should hopefully only * ever happen with things at the end */ mod->firstDevNum = 0; mod->lastDevNum = 0; if (FL_TESTING(flags)) { logMessage(INFO, "would have rmmod %s", modName); rc = 0; } else { logMessage(INFO, "going to rmmod %s", modName); if (!(child = fork())) { int fd = open("/dev/tty3", O_RDWR); dup2(fd, 0); dup2(fd, 1); dup2(fd, 2); close(fd); execl("/sbin/rmmod", "/sbin/rmmod", modName, NULL); _exit(rc); } waitpid(child, &status, 0); if (!WIFEXITED(status) || WEXITSTATUS(status)) { rc = 1; } else { int found = -1; int i; /* find our module. once we've found it, shutffle everything * else back one */ for (i = 0; i < modLoaded->numModules; i++) { if (found > -1) { modLoaded->mods[i - 1] = modLoaded->mods[i]; } else if (!strcmp(modLoaded->mods[i].name, modName)) { found = i; free(modLoaded->mods[i].name); free(modLoaded->mods[i].path); } } modLoaded->numModules--; rc = 0; } } return rc; } void loadKickstartModule(struct loaderData_s * loaderData, int argc, char ** argv) { char * opts = NULL; char * module = NULL; char ** args = NULL; poptContext optCon; int rc; struct poptOption ksDeviceOptions[] = { { "opts", '\0', POPT_ARG_STRING, &opts, 0, NULL, NULL }, { 0, 0, 0, 0, 0, 0, 0 } }; optCon = poptGetContext(NULL, argc, (const char **) argv, ksDeviceOptions, 0); if ((rc = poptGetNextOpt(optCon)) < -1) { startNewt(); newtWinMessage(_("Kickstart Error"), _("OK"), _("Bad argument to device kickstart method " "command %s: %s"), poptBadOption(optCon, POPT_BADOPTION_NOALIAS), poptStrerror(rc)); return; } module = (char *) poptGetArg(optCon); if (!module) { startNewt(); newtWinMessage(_("Kickstart Error"), _("OK"), _("A module name must be specified for " "the kickstart device command.")); return; } if (opts) { int numAlloced = 5, i = 0; char * start; char * end; args = malloc((numAlloced + 1) * sizeof(args)); start = opts; while (start && *start) { end = start; while (!isspace(*end) && *end) end++; *end = '\0'; (args)[i++] = strdup(start); start = end + 1; *end = ' '; start = strchr(end, ' '); if (start) start++; if (i >= numAlloced) { numAlloced += 5; args = realloc(args, sizeof(args) * (numAlloced + 1)); } } args[i] = NULL; } mlLoadModule(module, loaderData->modLoaded, *(loaderData->modDepsPtr), loaderData->modInfo, args); }