LU-11304 misc: update all url links to whamcloud

[fs/lustre-release.git] / libcfs / libcfs / util / l_ioctl.c

diff --git a/libcfs/libcfs/util/l_ioctl.c b/libcfs/libcfs/util/l_ioctl.c
index cf1fcd9..f1676aa 100644 (file)
--- a/libcfs/libcfs/util/l_ioctl.c
+++ b/libcfs/libcfs/util/l_ioctl.c
@@ -1,7 +1,9 @@
 /*
  * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
  *
 /*
  * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
  *

- *   This file is part of Portals, http://www.sf.net/projects/lustre/
+ * Copyright (c) 2014, 2017, Intel Corporation.
+ *
+ *   This file is part of Lustre, https://wiki.whamcloud.com/

  *
  *   Portals is free software; you can redistribute it and/or
  *   modify it under the terms of version 2 of the GNU General Public
  *
  *   Portals is free software; you can redistribute it and/or
  *   modify it under the terms of version 2 of the GNU General Public


@@ -20,51 +22,34 @@
 
 #define __USE_FILE_OFFSET64
 
 
 #define __USE_FILE_OFFSET64
 

+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>

 #include <sys/ioctl.h>
 #include <sys/mman.h>
 #include <sys/ioctl.h>
 #include <sys/mman.h>

-#include <libcfs/libcfsutil.h>
-#include <lnet/lnetctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <linux/types.h>

 
 

-static ioc_handler_t  do_ioctl;                 /* forward ref */
-static ioc_handler_t *current_ioc_handler = &do_ioctl;
+#include <libcfs/util/ioctl.h>
+#include <linux/lnet/lnetctl.h>

 
 struct ioc_dev {
 
 struct ioc_dev {

-        const char * dev_name;
-        int dev_fd;
-        int dev_major;
-        int dev_minor;
+       const char *dev_name;
+       int dev_fd;

 };
 
 static struct ioc_dev ioc_dev_list[10];
 
 };
 
 static struct ioc_dev ioc_dev_list[10];
 

-struct dump_hdr {
-        int magic;
-        int dev_id;
-        unsigned int opc;
-};
-
-char *dump_filename;
-
-void
-set_ioc_handler (ioc_handler_t *handler)
-{
-        if (handler == NULL)
-                current_ioc_handler = do_ioctl;
-        else
-                current_ioc_handler = handler;
-}
-
-/* Catamount has no <linux/kdev_t.h>, so just define it here */
-#ifndef MKDEV
-# define MKDEV(a,b) (((a) << 8) | (b))
-#endif
-

 static int
 static int

-open_ioc_dev(int dev_id) 
+open_ioc_dev(int dev_id)

 {
         const char * dev_name;
 
 {
         const char * dev_name;
 

-        if (dev_id < 0 || 
+       if (dev_id < 0 ||

             dev_id >= sizeof(ioc_dev_list) / sizeof(ioc_dev_list[0]))
                 return -EINVAL;
 
             dev_id >= sizeof(ioc_dev_list) / sizeof(ioc_dev_list[0]))
                 return -EINVAL;
 


@@ -77,17 +62,6 @@ open_ioc_dev(int dev_id)
         if (ioc_dev_list[dev_id].dev_fd < 0) {
                int fd = open(dev_name, O_RDWR);
 
         if (ioc_dev_list[dev_id].dev_fd < 0) {
                int fd = open(dev_name, O_RDWR);
 

-               /* Make the /dev/ node if we need to */
-               if (fd < 0 && errno == ENOENT) {
-                       if (mknod(dev_name, S_IFCHR|S_IWUSR|S_IRUSR,
-                                 MKDEV(ioc_dev_list[dev_id].dev_major,
-                                       ioc_dev_list[dev_id].dev_minor)) == 0)
-                               fd = open(dev_name, O_RDWR);
-                        else
-                                fprintf(stderr, "mknod %s failed: %s\n",
-                                        dev_name, strerror(errno));
-                }
-

                 if (fd < 0) {
                         fprintf(stderr, "opening %s failed: %s\n"
                                 "hint: the kernel modules may not be loaded\n",
                 if (fd < 0) {
                         fprintf(stderr, "opening %s failed: %s\n"
                                 "hint: the kernel modules may not be loaded\n",


@@ -101,13 +75,12 @@ open_ioc_dev(int dev_id)
 }
 
 
 }
 
 

-static int 
-do_ioctl(int dev_id, unsigned int opc, void *buf)
+int l_ioctl(int dev_id, unsigned int opc, void *buf)

 {
         int fd, rc;
 {
         int fd, rc;

-        
+

         fd = open_ioc_dev(dev_id);
         fd = open_ioc_dev(dev_id);

-        if (fd < 0) 
+       if (fd < 0)

                 return fd;
 
        rc = ioctl(fd, opc, buf);
                 return fd;
 
        rc = ioctl(fd, opc, buf);


@@ -115,63 +88,11 @@ do_ioctl(int dev_id, unsigned int opc, void *buf)
        return rc;
 }
 
        return rc;
 }
 

-static FILE *
-get_dump_file() 
-{
-        FILE *fp = NULL;
-        
-        if (!dump_filename) {
-                fprintf(stderr, "no dump filename\n");
-        } else 
-                fp = fopen(dump_filename, "a");
-        return fp;
-}
-
-/*
- * The dump file should start with a description of which devices are
- * used, but for now it will assumed whatever app reads the file will
- * know what to do. */
-int 
-dump(int dev_id, unsigned int opc, void *buf)
-{
-        FILE *fp;
-        struct dump_hdr dump_hdr;
-        struct libcfs_ioctl_hdr * ioc_hdr = (struct  libcfs_ioctl_hdr *) buf;
-        int rc;
-        
-        printf("dumping opc %x to %s\n", opc, dump_filename);
-        
-
-        dump_hdr.magic = 0xdeadbeef;
-        dump_hdr.dev_id = dev_id;
-        dump_hdr.opc = opc;
-
-        fp = get_dump_file();
-        if (fp == NULL) {
-                fprintf(stderr, "%s: %s\n", dump_filename, 
-                        strerror(errno));
-                return -EINVAL;
-        }
-        
-        rc = fwrite(&dump_hdr, sizeof(dump_hdr), 1, fp);
-        if (rc == 1)
-                rc = fwrite(buf, ioc_hdr->ioc_len, 1, fp);
-        fclose(fp);
-        if (rc != 1) {
-                fprintf(stderr, "%s: %s\n", dump_filename,
-                        strerror(errno));
-                return -EINVAL;
-        }
-
-        return 0;
-}
-

 /* register a device to send ioctls to.  */
 /* register a device to send ioctls to.  */

-int 
-register_ioc_dev(int dev_id, const char * dev_name, int major, int minor) 
+int
+register_ioc_dev(int dev_id, const char *dev_name)

 {
 {

-
-        if (dev_id < 0 || 
+       if (dev_id < 0 ||

             dev_id >= sizeof(ioc_dev_list) / sizeof(ioc_dev_list[0]))
                 return -EINVAL;
 
             dev_id >= sizeof(ioc_dev_list) / sizeof(ioc_dev_list[0]))
                 return -EINVAL;
 


@@ -179,14 +100,12 @@ register_ioc_dev(int dev_id, const char * dev_name, int major, int minor)
 
         ioc_dev_list[dev_id].dev_name = dev_name;
         ioc_dev_list[dev_id].dev_fd = -1;
 
         ioc_dev_list[dev_id].dev_name = dev_name;
         ioc_dev_list[dev_id].dev_fd = -1;

-        ioc_dev_list[dev_id].dev_major = major;
-        ioc_dev_list[dev_id].dev_minor = minor;
- 
+

         return dev_id;
 }
 
 void
         return dev_id;
 }
 
 void

-unregister_ioc_dev(int dev_id) 
+unregister_ioc_dev(int dev_id)

 {
        if (dev_id < 0 ||
            dev_id >= sizeof(ioc_dev_list) / sizeof(ioc_dev_list[0]))
 {
        if (dev_id < 0 ||
            dev_id >= sizeof(ioc_dev_list) / sizeof(ioc_dev_list[0]))


@@ -200,118 +119,13 @@ unregister_ioc_dev(int dev_id)
        ioc_dev_list[dev_id].dev_fd = -1;
 }
 
        ioc_dev_list[dev_id].dev_fd = -1;
 }
 

-/* If this file is set, then all ioctl buffers will be 
-   appended to the file. */
-int
-set_ioctl_dump(char * file)
+static inline size_t libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)

 {
 {

-        if (dump_filename)
-                free(dump_filename);
-        
-        dump_filename = strdup(file);
-        if (dump_filename == NULL)
-                abort();
-
-        set_ioc_handler(&dump);
-        return 0;
-}
+       size_t len = sizeof(*data);

 
 

-int
-l_ioctl(int dev_id, unsigned int opc, void *buf)
-{
-        return current_ioc_handler(dev_id, opc, buf);
-}
-
-/* Read an ioctl dump file, and call the ioc_func for each ioctl buffer
- * in the file.  For example:
- *
- * parse_dump("lctl.dump", l_ioctl);
- *
- * Note: if using l_ioctl, then you also need to register_ioc_dev() for 
- * each device used in the dump.
- */
-int 
-parse_dump(char * dump_file, ioc_handler_t ioc_func)
-{
-        int line =0;
-        char *start, *buf, *end;
-        struct stat st;
-        int fd;
-
-        fd = open(dump_file, O_RDONLY);
-        if (fd < 0) {
-                fprintf(stderr, "couldn't open %s: %s\n", dump_file, 
-                        strerror(errno));
-                exit(1);
-        }
-
-        if (fstat(fd, &st)) { 
-                perror("stat fails");
-                exit(1);
-        }
-
-        if (st.st_size < 1) {
-                fprintf(stderr, "KML is empty\n");
-                exit(1);
-        }
-
-        start = buf = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE , fd, 0);
-        end = start + st.st_size;
-        close(fd);
-        if (start == MAP_FAILED) {
-                fprintf(stderr, "can't create file mapping\n");
-                exit(1);
-        }
-
-        while (buf < end) {
-                struct dump_hdr *dump_hdr = (struct dump_hdr *) buf;
-                struct libcfs_ioctl_hdr * data;
-                char tmp[8096];
-                int rc;
-
-                line++;
-
-                data = (struct libcfs_ioctl_hdr *) (buf + sizeof(*dump_hdr));
-                if (buf + data->ioc_len > end ) {
-                        fprintf(stderr, "dump file overflow, %p + %d > %p\n", buf,
-                                data->ioc_len, end);
-                        return -1;
-                }
-#if 0
-                printf ("dump_hdr: %lx data: %lx\n",
-                        (unsigned long)dump_hdr - (unsigned long)buf, (unsigned long)data - (unsigned long)buf);
-
-                printf("%d: opcode %x len: %d  ver: %x ", line, dump_hdr->opc,
-                       data->ioc_len, data->ioc_version);
-#endif
-
-                memcpy(tmp, data, data->ioc_len);
-
-                rc = ioc_func(dump_hdr->dev_id, dump_hdr->opc, tmp);
-                if (rc) {
-                        printf("failed: %d\n", rc);
-                        exit(1);
-                }
-
-                buf += data->ioc_len + sizeof(*dump_hdr);
-        }
-
-       munmap(start, end - start);
-
-       return 0;
-}
-
-int 
-jt_ioc_dump(int argc, char **argv)
-{
-        if (argc > 2) {
-                fprintf(stderr, "usage: %s [hostname]\n", argv[0]);
-                return 0;
-        }
-        printf("setting dumpfile to: %s\n", argv[1]);
-        
-        set_ioctl_dump(argv[1]);
-        return 0;
+       len += (data->ioc_inllen1 + 7) & ~7;
+       len += (data->ioc_inllen2 + 7) & ~7;
+       return len;

 }
 
 int libcfs_ioctl_pack(struct libcfs_ioctl_data *data, char **pbuf,
 }
 
 int libcfs_ioctl_pack(struct libcfs_ioctl_data *data, char **pbuf,


@@ -332,12 +146,16 @@ int libcfs_ioctl_pack(struct libcfs_ioctl_data *data, char **pbuf,
        memcpy(*pbuf, data, sizeof(*data));
 
        ptr = overlay->ioc_bulk;
        memcpy(*pbuf, data, sizeof(*data));
 
        ptr = overlay->ioc_bulk;

-       if (data->ioc_inlbuf1 != NULL)
-               LOGL(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
-       if (data->ioc_inlbuf2 != NULL)
-               LOGL(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
-       if (libcfs_ioctl_is_invalid(overlay))
-               return 1;
+       if (data->ioc_inlbuf1 != NULL) {
+               memcpy((char *)ptr, (const char *)data->ioc_inlbuf1,
+                      data->ioc_inllen1);
+               ptr += ((data->ioc_inllen1 + 7) & ~7);
+       }
+       if (data->ioc_inlbuf2 != NULL) {
+               memcpy((char *)ptr, (const char *)data->ioc_inlbuf2,
+                      data->ioc_inllen2);
+               ptr += ((data->ioc_inllen2 + 7) & ~7);
+       }

 
        return 0;
 }
 
        return 0;
 }


@@ -355,8 +173,14 @@ libcfs_ioctl_unpack(struct libcfs_ioctl_data *data, char *pbuf)
        memcpy(data, pbuf, sizeof(*data));
        ptr = &overlay->ioc_bulk[0];
 
        memcpy(data, pbuf, sizeof(*data));
        ptr = &overlay->ioc_bulk[0];
 

-       if (data->ioc_inlbuf1 != NULL)
-               LOGU(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
-       if (data->ioc_inlbuf2 != NULL)
-               LOGU(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
+       if (data->ioc_inlbuf1 != NULL) {
+               memcpy((char *)data->ioc_inlbuf1, (const char *)ptr,
+                      data->ioc_inllen1);
+               ptr += ((data->ioc_inllen1 + 7) & ~7);
+       }
+       if (data->ioc_inlbuf2 != NULL) {
+               memcpy((char *)data->ioc_inlbuf2, (const char *)ptr,
+                      data->ioc_inllen2);
+               ptr += ((data->ioc_inllen2 + 7) & ~7);
+       }

 }
 }