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- ptlrpc_ping_interpret is needless:
[fs/lustre-release.git] / lustre / utils / llmount.c
index 198e30e..e50df3a 100644 (file)
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
+#include <fcntl.h>
 #include <errno.h>
 #include <string.h>
 #include <sys/mount.h>
 #include <mntent.h>
 #define _GNU_SOURCE
 #include <getopt.h>
+#include <sys/utsname.h>
+#include <pwd.h>
+#include <grp.h>
 
 #include "obdctl.h"
 #include <portals/ptlctl.h>
+#include <linux/lustre_idl.h>
 
 int debug;
 int verbose;
@@ -115,6 +120,11 @@ init_options(struct lustre_mount_data *lmd)
         lmd->lmd_local_nid = PTL_NID_ANY;
         lmd->lmd_port = 988;    /* XXX define LUSTRE_DEFAULT_PORT */
         lmd->lmd_nal = SOCKNAL;
+        lmd->lmd_async = 0;
+        lmd->lmd_remote_flag = 0;
+        lmd->lmd_nllu = NOBODY_UID;
+        lmd->lmd_nllg = NOBODY_GID;
+        strncpy(lmd->lmd_security, "null", sizeof(lmd->lmd_security));
         return 0;
 }
 
@@ -125,14 +135,27 @@ print_options(struct lustre_mount_data *lmd)
 
         printf("mds:             %s\n", lmd->lmd_mds);
         printf("profile:         %s\n", lmd->lmd_profile);
+        printf("sec_flavor:      %s\n", lmd->lmd_security);
         printf("server_nid:      "LPX64"\n", lmd->lmd_server_nid);
-        printf("local_nid:       "LPX64"\n", lmd->lmd_local_nid);
-        printf("nal:             %d\n", lmd->lmd_nal);
-        printf("server_ipaddr:   0x%x\n", lmd->lmd_server_ipaddr);
-        printf("port:            %d\n", lmd->lmd_port);
+#ifdef CRAY_PORTALS
+        if (lmd->lmd_nal != CRAY_KB_SSNAL) {
+#endif
+                printf("local_nid:       "LPX64"\n", lmd->lmd_local_nid);
+#ifdef CRAY_PORTALS
+        }
+#endif
+        printf("nal:             %x\n", lmd->lmd_nal);
+#ifdef CRAY_PORTALS
+        if (lmd->lmd_nal != CRAY_KB_SSNAL) {
+#endif
+                printf("server_ipaddr:   0x%x\n", lmd->lmd_server_ipaddr);
+                printf("port:            %d\n", lmd->lmd_port);
+#ifdef CRAY_PORTALS
+        }
+#endif
 
         for (i = 0; i < route_index; i++)
-                printf("route:           0x%llx : 0x%llx - 0x%llx\n",
+                printf("route:           "LPX64" : "LPX64" - "LPX64"\n",
                        routes[i].gw, routes[i].lo, routes[i].hi);
 
         return 0;
@@ -197,6 +220,60 @@ static int parse_route(char *opteq, char *opttgts)
         return(0);
 }
 
+/*
+ * here all what we do is gurantee the result is exactly
+ * what user intend to get, no ambiguous. maybe there have
+ * simpler library call could do the same job for us?
+ */
+static int parse_u32(char *str, uint32_t *res)
+{
+        unsigned long id;
+        char *endptr = NULL;
+
+        id = strtol(str, &endptr, 0);
+        if (endptr && *endptr != 0)
+                return -1;
+
+        if (id == LONG_MAX || id == LONG_MIN)
+                return -1;
+
+        if ((uint32_t)id != id)
+                return -1;
+
+        *res = (uint32_t) id;
+        return 0;
+}
+
+static int parse_nllu(struct lustre_mount_data *lmd, char *str_nllu)
+{
+        struct passwd *pass;
+
+        if (parse_u32(str_nllu, &lmd->lmd_nllu) == 0)
+                return 0;
+
+        pass = getpwnam(str_nllu);
+        if (pass == NULL)
+                return -1;
+
+        lmd->lmd_nllu = pass->pw_uid;
+        return 0;
+}
+
+static int parse_nllg(struct lustre_mount_data *lmd, char *str_nllg)
+{
+        struct group *grp;
+
+        if (parse_u32(str_nllg, &lmd->lmd_nllg) == 0)
+                return 0;
+
+        grp = getgrnam(str_nllg);
+        if (grp == NULL)
+                return -1;
+
+        lmd->lmd_nllg = grp->gr_gid;
+        return 0;
+}
+
 int parse_options(char * options, struct lustre_mount_data *lmd)
 {
         ptl_nid_t nid = 0, cluster_id = 0;
@@ -210,6 +287,11 @@ int parse_options(char * options, struct lustre_mount_data *lmd)
                         *opteq = '\0';
                         if (!strcmp(opt, "nettype")) {
                                 lmd->lmd_nal = ptl_name2nal(opteq + 1);
+                                if (lmd->lmd_nal < 0) {
+                                        fprintf(stderr, "%s: can't parse NET "
+                                                "%s\n", progname, opteq + 1);
+                                        return (-1);
+                                }
                         } else if(!strcmp(opt, "cluster_id")) {
                                 if (ptl_parse_nid(&cluster_id, opteq+1) != 0) {
                                         fprintf (stderr, "%s: can't parse NID "
@@ -245,18 +327,40 @@ int parse_options(char * options, struct lustre_mount_data *lmd)
                                 lmd->lmd_server_nid = nid;
                         } else if (!strcmp(opt, "port")) {
                                 lmd->lmd_port = val;
+                        } else if (!strcmp(opt, "sec")) {
+                                strncpy(lmd->lmd_security, opteq + 1,
+                                        sizeof(lmd->lmd_security));
+                        } else if (!strcmp(opt, "nllu")) {
+                                if (parse_nllu(lmd, opteq + 1)) {
+                                        fprintf(stderr, "%s: "
+                                                "can't parse user: %s\n",
+                                                progname, opteq + 1);
+                                        return (-1);
+                                }
+                        } else if (!strcmp(opt, "nllg")) {
+                                if (parse_nllg(lmd, opteq + 1)) {
+                                        fprintf(stderr, "%s: "
+                                                "can't parse group: %s\n",
+                                                progname, opteq + 1);
+                                        return (-1);
+                                }
                         }
-                        else if (!strcmp(opt, "clone")) {
-                                lmd->lmd_clone_index = val;
-                        } 
                 } else {
-                        val = 1;
-                        if (!strncmp(opt, "no", 2)) {
-                                val = 0;
-                                opt += 2;
-                        }
-                        if (!strcmp(opt, "debug")) {
-                                debug = val;
+                        if (!strcmp(opt, "remote")) {
+                                lmd->lmd_remote_flag = OBD_CONNECT_REMOTE;
+                        } else if (!strcmp(opt, "local")) {
+                                lmd->lmd_remote_flag = OBD_CONNECT_LOCAL;
+                        } else if (!strcmp(opt, "async")) {
+                                lmd->lmd_async = 1;
+                        } else {
+                                val = 1;
+                                if (!strncmp(opt, "no", 2)) {
+                                        val = 0;
+                                        opt += 2;
+                                }
+                                if (!strcmp(opt, "debug")) {
+                                        debug = val;
+                                }
                         }
                 }
         }
@@ -294,14 +398,67 @@ set_local(struct lustre_mount_data *lmd)
 
         memset(buf, 0, sizeof(buf));
 
-        if (lmd->lmd_nal == SOCKNAL || lmd->lmd_nal == TCPNAL) {
+        switch (lmd->lmd_nal) {
+        default:
+                fprintf(stderr, "%s: Unknown network type: %d\n",
+                        progname, lmd->lmd_nal);
+                return 1;
+
+#if CRAY_PORTALS
+        case CRAY_KB_SSNAL:
+                return 0;
+
+        case CRAY_KB_ERNAL:
+#else
+        case SOCKNAL:
+        case TCPNAL:
+        case OPENIBNAL:
+        case IIBNAL:
+        case VIBNAL:
+        case RANAL:
+#endif
+        {
+                struct utsname uts;
+
                 rc = gethostname(buf, sizeof(buf) - 1);
                 if (rc) {
-                        fprintf (stderr, "%s: can't get local buf: %d\n",
-                                 progname, rc);
+                        fprintf(stderr, "%s: can't get hostname: %s\n",
+                                progname, strerror(rc));
                         return rc;
                 }
-        } else if (lmd->lmd_nal == QSWNAL) {
+
+                rc = uname(&uts);
+                /* for 2.6 kernels, reserve at least 8MB free, or we will
+                 * go OOM during heavy read load */
+                if (rc == 0 && strncmp(uts.release, "2.6", 3) == 0) {
+                        int f, minfree = 32768;
+                        char name[40], val[40];
+                        FILE *meminfo;
+
+                        meminfo = fopen("/proc/meminfo", "r");
+                        if (meminfo != NULL) {
+                                while (fscanf(meminfo, "%s %s %*s\n", name, val) != EOF) {
+                                        if (strcmp(name, "MemTotal:") == 0) {
+                                                f = strtol(val, NULL, 0);
+                                                if (f > 0 && f < 8 * minfree)
+                                                        minfree = f / 16;
+                                                break;
+                                        }
+                                }
+                                fclose(meminfo);
+                        }
+                        f = open("/proc/sys/vm/min_free_kbytes", O_WRONLY);
+                        if (f >= 0) {
+                                sprintf(val, "%d", minfree);
+                                write(f, val, strlen(val));
+                                close(f);
+                        }
+                }
+                break;
+        }
+#if !CRAY_PORTALS
+        case QSWNAL:
+        {
                 char *pfiles[] = {"/proc/qsnet/elan3/device0/position",
                                   "/proc/qsnet/elan4/device0/position",
                                   "/proc/elan/device0/position",
@@ -318,6 +475,9 @@ set_local(struct lustre_mount_data *lmd)
 
                         return -1;
                 }
+                break;
+        }
+#endif
         }
 
         if (ptl_parse_nid (&nid, buf) != 0) {
@@ -335,12 +495,41 @@ set_peer(char *hostname, struct lustre_mount_data *lmd)
         ptl_nid_t nid = 0;
         int rc;
 
-        if (lmd->lmd_nal == SOCKNAL || lmd->lmd_nal == TCPNAL) {
+        switch (lmd->lmd_nal) {
+        default:
+                fprintf(stderr, "%s: Unknown network type: %d\n",
+                        progname, lmd->lmd_nal);
+                return 1;
+
+#if CRAY_PORTALS
+       case CRAY_KB_SSNAL:
+               lmd->lmd_server_nid = strtoll(hostname,0,0);
+                return 0;
+
+        case CRAY_KB_ERNAL:
+#else
+        case IIBNAL:
+                if (lmd->lmd_server_nid != PTL_NID_ANY)
+                        break;
+                if (ptl_parse_nid (&nid, hostname) != 0) {
+                        fprintf (stderr, "%s: can't parse NID %s\n",
+                                 progname, hostname);
+                        return (1);
+                }
+                lmd->lmd_server_nid = nid;
+                break;
+
+        case SOCKNAL:
+        case TCPNAL:
+        case OPENIBNAL:
+        case VIBNAL:
+        case RANAL:
+#endif
                 if (lmd->lmd_server_nid == PTL_NID_ANY) {
                         if (ptl_parse_nid (&nid, hostname) != 0) {
                                 fprintf (stderr, "%s: can't parse NID %s\n",
                                          progname, hostname);
-                                return (-1);
+                                return (1);
                         }
                         lmd->lmd_server_nid = nid;
                 }
@@ -350,8 +539,15 @@ set_peer(char *hostname, struct lustre_mount_data *lmd)
                                  progname, hostname);
                         return (-1);
                 }
-        } else if (lmd->lmd_nal == QSWNAL) {
+
+                break;
+
+#if !CRAY_PORTALS
+        case QSWNAL: {
                 char buf[64];
+                if (lmd->lmd_server_nid != PTL_NID_ANY)
+                        break;
+
                 rc = sscanf(hostname, "%*[^0-9]%63[0-9]", buf);
                 if (rc != 1) {
                         fprintf (stderr, "%s: can't get elan id from host %s\n",
@@ -364,9 +560,11 @@ set_peer(char *hostname, struct lustre_mount_data *lmd)
                         return (-1);
                 }
                 lmd->lmd_server_nid = nid;
-        }
-
 
+                break;
+        }
+#endif
+        }
         return 0;
 }
 
@@ -378,12 +576,12 @@ build_data(char *source, char *options, struct lustre_mount_data *lmd)
         int rc;
 
         if (lmd_bad_magic(lmd))
-                return -EINVAL;
+                return 4;
 
         if (strlen(source) > sizeof(buf) + 1) {
                 fprintf(stderr, "%s: host:/mds/profile argument too long\n",
                         progname);
-                return -EINVAL;
+                return 1;
         }
         strcpy(buf, source);
         if ((s = strchr(buf, ':'))) {
@@ -400,13 +598,13 @@ build_data(char *source, char *options, struct lustre_mount_data *lmd)
                         fprintf(stderr, "%s: directory to mount not in "
                                 "host:/mds/profile format\n",
                                 progname);
-                        return(-1);
+                        return(1);
                 }
         } else {
                 fprintf(stderr, "%s: "
                         "directory to mount not in host:/mds/profile format\n",
                         progname);
-                return(-1);
+                return(1);
         }
 
         rc = parse_options(options, lmd);
@@ -422,13 +620,13 @@ build_data(char *source, char *options, struct lustre_mount_data *lmd)
                 return rc;
         if (strlen(mds) > sizeof(lmd->lmd_mds) + 1) {
                 fprintf(stderr, "%s: mds name too long\n", progname);
-                return(-1);
+                return(1);
         }
         strcpy(lmd->lmd_mds, mds);
 
         if (strlen(profile) > sizeof(lmd->lmd_profile) + 1) {
                 fprintf(stderr, "%s: profile name too long\n", progname);
-                return(-1);
+                return(1);
         }
         strcpy(lmd->lmd_profile, profile);
 
@@ -490,9 +688,9 @@ static int set_routes(struct lustre_mount_data *lmd) {
               rc = l_ioctl(PORTALS_DEV_ID, IOC_PORTAL_NAL_CMD, &data);
               if (rc != 0) {
                       fprintf(stderr, "%s: Unable to add route "
-                              "0x%llx : 0x%llx - 0x%llx\n[%d] %s\n",
-                               progname, routes[i].gw, routes[i].lo,
-                               routes[i].hi, errno, strerror(errno));
+                              LPX64" : "LPX64" - "LPX64"\n[%d] %s\n",
+                              progname, routes[i].gw, routes[i].lo,
+                              routes[i].hi, errno, strerror(errno));
                       err = -1;
                       break;
               }
@@ -578,12 +776,12 @@ int main(int argc, char *const argv[])
         init_options(&lmd);
         rc = build_data(source, options, &lmd);
         if (rc) {
-                exit(1);
+                exit(rc);
         }
 
         rc = set_routes(&lmd);
         if (rc) {
-                exit(1);
+                exit(rc);
         }
 
         if (debug) {
@@ -591,15 +789,25 @@ int main(int argc, char *const argv[])
                 exit(0);
         }
 
+        rc = access(target, F_OK);
+        if (rc) {
+                rc = errno;
+                fprintf(stderr, "%s: %s inaccessible: %s\n", progname, target,
+                        strerror(errno));
+                return rc;
+        }
+
         rc = mount(source, target, "lustre", 0, (void *)&lmd);
         if (rc) {
                 rc = errno;
                 perror(argv[0]);
+                fprintf(stderr, "%s: mount(%s, %s) failed: %s\n", source,
+                        target, progname, strerror(errno));
                 if (rc == ENODEV)
                         fprintf(stderr, "Are the lustre modules loaded?\n"
                              "Check /etc/modules.conf and /proc/filesystems\n");
-        } else {
-                update_mtab_entry(source, target, "lustre", options, 0, 0, 0);
+                return 2;
         }
-        return rc;
+        update_mtab_entry(source, target, "lustre", options, 0, 0, 0);
+        return 0;
 }