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minix/servers/vfs/request.c

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/* This file contains the wrapper functions for issueing a request
* and receiving response from FS processes.
* Each function builds a request message according to the request
* parameter, calls the most low-level fs_sendrec and copies
* back the response.
* The low-level fs_sendrec handles the recovery mechanism from
* a dead driver and reissues the request.
*
* Sep 2006 (Balazs Gerofi)
*/
#include "fs.h"
#include <string.h>
#include <minix/callnr.h>
#include <minix/com.h>
#include <minix/keymap.h>
#include <minix/const.h>
#include <minix/endpoint.h>
#include <minix/u64.h>
#include <unistd.h>
#include <minix/vfsif.h>
#include "fproc.h"
#include "vmnt.h"
#include "vnode.h"
#include "param.h"
/*===========================================================================*
* req_getnode *
*===========================================================================*/
PUBLIC int req_getnode(req, res)
node_req_t *req;
node_details_t *res;
{
int r;
message m;
/* Fill in request message */
m.m_type = REQ_GETNODE;
m.REQ_INODE_NR = req->inode_nr;
/* Send/rec request */
if ((r = fs_sendrec(req->fs_e, &m)) != OK) return r;
/* Fill in response structure */
res->fs_e = m.m_source;
res->inode_nr = m.RES_INODE_NR;
res->fmode = m.RES_MODE;
res->fsize = m.RES_FILE_SIZE;
res->dev = m.RES_DEV;
return OK;
}
/*===========================================================================*
* req_putnode *
*===========================================================================*/
PUBLIC int req_putnode(req)
node_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_PUTNODE;
m.REQ_INODE_NR = req->inode_nr;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_open *
*===========================================================================*/
int req_open(req, res)
open_req_t *req;
node_details_t *res;
{
int r;
message m;
/* Fill in request message */
m.m_type = REQ_OPEN;
m.REQ_INODE_NR = req->inode_nr;
m.REQ_FLAGS = req->oflags;
m.REQ_MODE = req->omode;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_PATH = req->lastc;
m.REQ_PATH_LEN = strlen(req->lastc) + 1;
/* Send/rec request */
if ((r = fs_sendrec(req->fs_e, &m)) != OK) return r;
/* Fill in response structure */
res->fs_e = m.m_source;
res->inode_nr = m.RES_INODE_NR;
res->fmode = m.RES_MODE;
res->fsize = m.RES_FILE_SIZE;
res->dev = m.RES_DEV;
res->inode_index = m.RES_INODE_INDEX;
/* For exec */
res->uid = m.RES_UID;
res->gid = m.RES_GID;
res->ctime = m.RES_CTIME;
return OK;
}
/*===========================================================================*
* req_readwrite *
*===========================================================================*/
int req_readwrite(req, res)
readwrite_req_t *req;
readwrite_res_t *res;
{
int r;
message m;
if (ex64hi(req->pos) != 0)
panic(__FILE__, "req_readwrite: pos too large", NO_NUM);
/* Fill in request message */
m.m_type = req->rw_flag == READING ? REQ_READ : REQ_WRITE;
m.REQ_FD_INODE_NR = req->inode_nr;
m.REQ_FD_WHO_E = req->user_e;
m.REQ_FD_SEG = req->seg;
m.REQ_FD_POS = ex64lo(req->pos);
m.REQ_FD_NBYTES = req->num_of_bytes;
m.REQ_FD_USER_ADDR = req->user_addr;
m.REQ_FD_INODE_INDEX = req->inode_index;
/* Send/rec request */
if ((r = fs_sendrec(req->fs_e, &m)) != OK) return r;
/* Fill in response structure */
res->new_pos = cvul64(m.RES_FD_POS);
res->cum_io = m.RES_FD_CUM_IO;
return OK;
}
/*===========================================================================*
* req_pipe *
*===========================================================================*/
PUBLIC int req_pipe(req, res)
pipe_req_t *req;
node_details_t *res;
{
int r;
message m;
/* Fill in request message */
m.m_type = REQ_PIPE;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
/* Send/rec request */
if ((r = fs_sendrec(req->fs_e, &m)) != OK) return r;
/* Fill in response structure */
res->fs_e = m.m_source;
res->inode_nr = m.RES_INODE_NR;
res->fmode = m.RES_MODE;
res->fsize = m.RES_FILE_SIZE;
res->dev = m.RES_DEV;
res->inode_index = m.RES_INODE_INDEX;
return OK;
}
/*===========================================================================*
* req_clone_opcl *
*===========================================================================*/
PUBLIC int req_clone_opcl(req, res)
clone_opcl_req_t *req;
node_details_t *res;
{
int r;
message m;
/* Fill in request message */
m.m_type = REQ_CLONE_OPCL;
m.REQ_DEV = req->dev;
/* Send/rec request */
if ((r = fs_sendrec(req->fs_e, &m)) != OK) return r;
/* Fill in response structure */
res->fs_e = m.m_source;
res->inode_nr = m.RES_INODE_NR;
res->fmode = m.RES_MODE;
res->fsize = m.RES_FILE_SIZE;
res->dev = m.RES_DEV;
res->inode_index = m.RES_INODE_INDEX;
return OK;
}
/*===========================================================================*
* req_ftrunc *
*===========================================================================*/
PUBLIC int req_ftrunc(req)
ftrunc_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_FTRUNC;
m.REQ_FD_INODE_NR = req->inode_nr;
m.REQ_FD_START = req->start;
m.REQ_FD_END = req->end;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_chmod *
*===========================================================================*/
PUBLIC int req_chmod(req)
chmod_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_CHMOD;
m.REQ_INODE_NR = req->inode_nr;
m.REQ_MODE = req->rmode;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_chown *
*===========================================================================*/
PUBLIC int req_chown(req)
chown_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_CHOWN;
m.REQ_INODE_NR = req->inode_nr;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_NEW_UID = req->newuid;
m.REQ_NEW_GID = req->newgid;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_access *
*===========================================================================*/
PUBLIC int req_access(req)
access_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_ACCESS;
m.REQ_INODE_NR = req->inode_nr;
m.REQ_MODE = req->amode;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_mknod *
*===========================================================================*/
PUBLIC int req_mknod(req)
mknod_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_MKNOD;
m.REQ_INODE_NR = req->inode_nr;
m.REQ_MODE = req->rmode;
m.REQ_DEV = req->dev;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_PATH = req->lastc;
m.REQ_PATH_LEN = strlen(req->lastc) + 1;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_mkdir *
*===========================================================================*/
PUBLIC int req_mkdir(req)
mkdir_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_MKDIR;
m.REQ_INODE_NR = req->d_inode_nr;
m.REQ_MODE = req->rmode;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_PATH = req->lastc;
m.REQ_PATH_LEN = strlen(req->lastc) + 1;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_inhibread *
*===========================================================================*/
PUBLIC int req_inhibread(req)
node_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_INHIBREAD;
m.REQ_INODE_NR = req->inode_nr;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_stat *
*===========================================================================*/
PUBLIC int req_stat(req)
stat_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_STAT;
m.REQ_INODE_NR = req->inode_nr;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_WHO_E = req->who_e;
m.REQ_USER_ADDR = req->buf;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_fstat *
*===========================================================================*/
PUBLIC int req_fstat(req)
stat_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_FSTAT;
m.REQ_FD_INODE_NR = req->inode_nr;
m.REQ_FD_WHO_E = req->who_e;
m.REQ_FD_USER_ADDR = req->buf;
m.REQ_FD_POS = req->pos;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_fstatfs *
*===========================================================================*/
PUBLIC int req_fstatfs(req)
stat_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_FSTATFS;
m.REQ_FD_INODE_NR = req->inode_nr;
m.REQ_FD_WHO_E = req->who_e;
m.REQ_FD_USER_ADDR = req->buf;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_unlink *
*===========================================================================*/
PUBLIC int req_unlink(req)
unlink_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_UNLINK;
m.REQ_INODE_NR = req->d_inode_nr;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_PATH = req->lastc;
m.REQ_PATH_LEN = strlen(req->lastc) + 1;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_rmdir *
*===========================================================================*/
PUBLIC int req_rmdir(req)
unlink_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_RMDIR;
m.REQ_INODE_NR = req->d_inode_nr;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_PATH = req->lastc;
m.REQ_PATH_LEN = strlen(req->lastc) + 1;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_utime *
*===========================================================================*/
PUBLIC int req_utime(req)
utime_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_UTIME;
m.REQ_INODE_NR = req->inode_nr;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_ACTIME = req->actime;
m.REQ_MODTIME = req->modtime;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_stime *
*===========================================================================*/
PUBLIC int req_stime(fs_e, boottime)
endpoint_t fs_e;
time_t boottime;
{
message m;
/* Fill in request message */
m.m_type = REQ_STIME;
m.REQ_BOOTTIME = boottime;
/* Send/rec request */
return fs_sendrec(fs_e, &m);
}
/*===========================================================================*
* req_sync *
*===========================================================================*/
PUBLIC int req_sync(fs_e)
endpoint_t fs_e;
{
message m;
/* Fill in request message */
m.m_type = REQ_SYNC;
/* Send/rec request */
return fs_sendrec(fs_e, &m);
}
/*===========================================================================*
* req_getdir *
*===========================================================================*/
PUBLIC int req_getdir(req, res)
getdir_req_t *req;
node_details_t *res;
{
int r;
message m;
/* Fill in request message */
m.m_type = REQ_GETDIR;
m.REQ_INODE_NR = req->inode_nr;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
/* Send/rec request */
if ((r = fs_sendrec(req->fs_e, &m)) != OK) return r;
/* Fill in response structure */
res->fs_e = m.m_source;
res->inode_nr = m.RES_INODE_NR;
res->fmode = m.RES_MODE;
res->fsize = m.RES_FILE_SIZE;
return OK;
}
/*===========================================================================*
* req_link *
*===========================================================================*/
PUBLIC int req_link(req)
link_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_LINK;
m.REQ_LINKED_FILE = req->linked_file;
m.REQ_LINK_PARENT = req->link_parent;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_PATH = req->lastc;
m.REQ_PATH_LEN = strlen(req->lastc) + 1;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_slink *
*===========================================================================*/
PUBLIC int req_slink(req)
slink_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_SLINK;
m.REQ_INODE_NR = req->parent_dir;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_PATH = req->lastc;
m.REQ_PATH_LEN = strlen(req->lastc) + 1;
m.REQ_WHO_E = req->who_e;
m.REQ_USER_ADDR = req->path_addr;
m.REQ_SLENGTH = req->path_length;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_rdlink *
*===========================================================================*/
PUBLIC int req_rdlink(req)
rdlink_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_RDLINK;
m.REQ_INODE_NR = req->inode_nr;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_WHO_E = req->who_e;
m.REQ_USER_ADDR = req->path_buffer;
m.REQ_SLENGTH = req->max_length;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_rename *
*===========================================================================*/
PUBLIC int req_rename(req)
rename_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_RENAME;
m.REQ_OLD_DIR = req->old_dir;
m.REQ_NEW_DIR = req->new_dir;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_PATH = req->old_name;
m.REQ_PATH_LEN = strlen(req->old_name) + 1;
m.REQ_USER_ADDR = req->new_name;
m.REQ_SLENGTH = strlen(req->new_name) + 1;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_mountpoint *
*===========================================================================*/
PUBLIC int req_mountpoint(req, res)
mountpoint_req_t *req;
node_details_t *res;
{
int r;
message m;
/* Fill in request message */
m.m_type = REQ_MOUNTPOINT;
m.REQ_INODE_NR = req->inode_nr;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
/* Send/rec request */
if ((r = fs_sendrec(req->fs_e, &m)) != OK) return r;
/* Fill in response structure */
res->fs_e = m.m_source;
res->inode_nr = m.RES_INODE_NR;
res->fmode = m.RES_MODE;
res->fsize = m.RES_FILE_SIZE;
return OK;
}
/*===========================================================================*
* req_readsuper *
*===========================================================================*/
PUBLIC int req_readsuper(req, res)
readsuper_req_t *req;
readsuper_res_t *res;
{
int r;
message m;
/* Fill in request message */
m.m_type = REQ_READSUPER;
m.REQ_READONLY = req->readonly;
m.REQ_BOOTTIME = req->boottime;
m.REQ_DRIVER_E = req->driver_e;
m.REQ_DEV = req->dev;
m.REQ_SLINK_STORAGE = req->slink_storage;
m.REQ_ISROOT = req->isroot;
/* Send/rec request */
if ((r = fs_sendrec(req->fs_e, &m)) != OK) return r;
/* Fill in response structure */
res->fs_e = m.m_source;
res->inode_nr = m.RES_INODE_NR;
res->fmode = m.RES_MODE;
res->fsize = m.RES_FILE_SIZE;
res->blocksize = m.RES_BLOCKSIZE;
res->maxsize = m.RES_MAXSIZE;
return OK;
}
/*===========================================================================*
* req_unmount *
*===========================================================================*/
PUBLIC int req_unmount(fs_e)
endpoint_t fs_e;
{
message m;
/* Fill in request message */
m.m_type = REQ_UNMOUNT;
/* Send/rec request */
return fs_sendrec(fs_e, &m);
}
/*===========================================================================*
* req_trunc *
*===========================================================================*/
PUBLIC int req_trunc(req)
trunc_req_t *req;
{
message m;
/* Fill in request message */
m.m_type = REQ_TRUNC;
m.REQ_FD_INODE_NR = req->inode_nr;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_LENGTH = req->length;
/* Send/rec request */
return fs_sendrec(req->fs_e, &m);
}
/*===========================================================================*
* req_newdriver *
*===========================================================================*/
PUBLIC int req_newdriver(fs_e, dev, driver_e)
endpoint_t fs_e;
Dev_t dev;
endpoint_t driver_e;
{
/* Note: this is the only request function that doesn't use the
* fs_sendrec internal routine, since we want to avoid the dead
* driver recovery mechanism here. This function is actually called
* during the recovery.
*/
message m;
int r;
/* Fill in request message */
m.m_type = REQ_NEW_DRIVER;
m.REQ_DEV = dev;
m.REQ_DRIVER_E = driver_e;
/* Issue request */
if ((r = sendrec(fs_e, &m)) != OK) {
printf("VFSreq_newdriver: error sending message to %d\n", fs_e);
return r;
}
return OK;
}
/*===========================================================================*
* req_lookup *
*===========================================================================*/
PUBLIC int req_lookup(req, res)
lookup_req_t *req;
lookup_res_t *res;
{
int r;
message m;
/* Fill in request message */
m.m_type = REQ_LOOKUP;
m.REQ_PATH = req->path;
m.REQ_PATH_LEN = strlen(req->path) + 1;
m.REQ_USER_ADDR = req->lastc;
m.REQ_FLAGS = req->flags;
m.REQ_INODE_NR = req->start_dir;
m.REQ_CHROOT_NR = req->root_dir;
m.REQ_UID = req->uid;
m.REQ_GID = req->gid;
m.REQ_SYMLOOP = req->symloop;
/* Send/rec request */
r = fs_sendrec(req->fs_e, &m);
/* Fill in response according to the return value */
res->fs_e = m.m_source;
switch (r) {
case OK:
res->inode_nr = m.RES_INODE_NR;
res->fmode = m.RES_MODE;
res->fsize = m.RES_FILE_SIZE;
res->dev = m.RES_DEV;
break;
case EENTERMOUNT:
res->inode_nr = m.RES_INODE_NR;
case ELEAVEMOUNT:
case ESYMLINK:
res->char_processed = m.RES_OFFSET;
res->symloop = m.RES_SYMLOOP;
break;
}
return r;
}
/*===========================================================================*
* req_breadwrite *
*===========================================================================*/
int req_breadwrite(req, res)
breadwrite_req_t *req;
readwrite_res_t *res;
{
int r;
message m;
/* Fill in request message */
m.m_type = req->rw_flag == READING ? REQ_BREAD : REQ_BWRITE;
m.REQ_XFD_BDEV = req->dev;
m.REQ_XFD_BLOCK_SIZE = req->blocksize;
m.REQ_XFD_WHO_E = req->user_e;
m.REQ_XFD_POS_LO = ex64lo(req->pos);
m.REQ_XFD_POS_HI = ex64hi(req->pos);
m.REQ_XFD_NBYTES = req->num_of_bytes;
m.REQ_XFD_USER_ADDR = req->user_addr;
/* Send/rec request */
if ((r = fs_sendrec(req->fs_e, &m)) != OK) return r;
/* Fill in response structure */
res->new_pos = make64(m.RES_XFD_POS_LO, m.RES_XFD_POS_HI);
res->cum_io = m.RES_XFD_CUM_IO;
return OK;
}
PUBLIC int req_getdents(fs_e, inode_nr, pos, gid, size, pos_change)
endpoint_t fs_e;
ino_t inode_nr;
off_t pos;
cp_grant_id_t gid;
size_t size;
off_t *pos_change;
{
int r;
message m;
m.m_type= REQ_GETDENTS;
m.REQ_GDE_INODE= inode_nr;
m.REQ_GDE_GRANT= gid;
m.REQ_GDE_SIZE= size;
m.REQ_GDE_POS= pos;
r = fs_sendrec(fs_e, &m);
*pos_change= m.RES_GDE_POS_CHANGE;
return r;
}
/*===========================================================================*
* req_flush *
*===========================================================================*/
PUBLIC int req_flush(fs_e, dev)
endpoint_t fs_e;
dev_t dev;
{
message m;
/* Fill in request message */
m.m_type = REQ_FLUSH;
m.REQ_DEV = dev;
/* Send/rec request */
return fs_sendrec(fs_e, &m);
}
#if 0
/* Wrapper pattern: */
/*===========================================================================*
* req_ *
*===========================================================================*/
PUBLIC int req_(req, res)
_req_t *req;
_t *res;
{
int r;
message m;
/* Fill in request message */
/* Send/rec request */
if ((r = fs_sendrec(req->fs_e, &m)) != OK) return r;
/* Fill in response structure */
return OK;
}
#endif
/*===========================================================================*
* fs_sendrec *
*===========================================================================*/
PUBLIC int fs_sendrec(endpoint_t fs_e, message *reqm)
{
/* This is the low level function that sends requests to FS processes.
* It also handles driver recovery mechanism and reissuing the
* request which failed due to a dead driver.
*/
int r, old_driver_e, new_driver_e;
message origm, m;
struct vmnt *vmp;
/* Make a copy of the request so that we can load it back in
* case of a dead driver */
origm = *reqm;
for (;;) {
/* Do the actual send, receive */
if (OK != sendrec(fs_e, reqm)) {
printf("VFS: error sending message. FS_e: %d req_nr: %d\n",
fs_e, reqm->m_type);
}
/* Get response type */
r = reqm->m_type;
/* Dead driver */
if (r == EDEADSRCDST || r == EDSTDIED || r == ESRCDIED) {
old_driver_e = 0;
/* Find old driver enpoint */
for (vmp = &vmnt[0]; vmp < &vmnt[NR_MNTS]; ++vmp) {
if (vmp->m_fs_e == reqm->m_source) { /* found FS */
old_driver_e = vmp->m_driver_e;
dmap_unmap_by_endpt(old_driver_e); /* unmap driver */
break;
}
}
/* No FS ?? */
if (!old_driver_e) {
panic(__FILE__, "VFSdead_driver: couldn't find FS\n",
old_driver_e);
}
/* Wait for a new driver. */
for (;;) {
new_driver_e = 0;
printf("VFSdead_driver: waiting for new driver\n");
r = receive(RS_PROC_NR, &m);
if (r != OK) {
panic(__FILE__, "VFSdead_driver: unable to receive from RS",
r);
}
if (m.m_type == DEVCTL) {
/* Map new driver */
r = fs_devctl(m.ctl_req, m.dev_nr, m.driver_nr,
m.dev_style, m.m_force);
if (m.ctl_req == DEV_MAP && r == OK) {
new_driver_e = m.driver_nr;
printf("VFSdead_driver: new driver endpoint: %d\n",
new_driver_e);
}
}
else {
panic(__FILE__, "VFSdead_driver: got message from RS, type",
m.m_type);
}
m.m_type = r;
if ((r = send(RS_PROC_NR, &m)) != OK) {
panic(__FILE__, "VFSdead_driver: unable to send to RS",
r);
}
/* New driver is ready */
if (new_driver_e) break;
}
/* Copy back original request */
*reqm = origm;
continue;
}
/* Sendrec was okay */
break;
}
/* Return message type */
return r;
}
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