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Message type for VFS_MOUNT

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Change-Id: I4114f5a1aa4f9efe49a12996722499b695c17230
This commit is contained in:
Lionel Sambuc 2014-05-12 12:00:38 +02:00
parent ad7e3e56c8
commit ecc9010c4b
4 changed files with 34 additions and 29 deletions
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11
include/minix/callnr.h
View file

@ -232,17 +232,6 @@
#define NR_VFS_CALLS 49 /* highest number from base plus one */
/* Field names for the mount(2) call. */
#define VFS_MOUNT_FLAGS m11_i1 /* int */
#define VFS_MOUNT_DEVLEN m11_s1 /* size_t */
#define VFS_MOUNT_PATHLEN m11_s2 /* size_t */
#define VFS_MOUNT_TYPELEN m11_s3 /* size_t */
#define VFS_MOUNT_LABELLEN m11_s4 /* size_t */
#define VFS_MOUNT_DEV m11_p1 /* char * */
#define VFS_MOUNT_PATH m11_p2 /* char * */
#define VFS_MOUNT_TYPE m11_p3 /* char * */
#define VFS_MOUNT_LABEL m11_p4 /* char * */
/* Field names for the umount(2) call. */
#define VFS_UMOUNT_NAME m1_p1 /* char * */
#define VFS_UMOUNT_NAMELEN m1_i1 /* size_t */

16
include/minix/ipc.h
View file

@ -155,6 +155,21 @@ typedef struct {
} mess_lc_vfs_getvfsstat;
_ASSERT_MSG_SIZE(mess_lc_vfs_getvfsstat);
typedef struct {
int flags;
size_t devlen;
size_t pathlen;
size_t typelen;
size_t labellen;
vir_bytes dev;
vir_bytes path;
vir_bytes type;
vir_bytes label;
uint8_t padding[20];
} mess_lc_vfs_mount;
_ASSERT_MSG_SIZE(mess_lc_vfs_mount);
typedef struct {
uint32_t nfds;
fd_set *readfds;
@ -629,6 +644,7 @@ typedef struct {
mess_fs_vfs_readwrite m_fs_vfs_readwrite;
mess_lc_vfs_getvfsstat m_lc_vfs_getvfsstat;
mess_lc_vfs_mount m_lc_vfs_mount;
mess_lc_vfs_select m_lc_vfs_select;
mess_lc_vfs_statvfs1 m_lc_vfs_statvfs1;

18
lib/libc/sys-minix/mount.c
View file

@ -144,15 +144,15 @@ int minix_mount(char *special, char *name, int mountflags, int srvflags,
/* Now perform mount(). */
memset(&m, 0, sizeof(m));
m.VFS_MOUNT_FLAGS = mountflags;
m.VFS_MOUNT_DEVLEN = special ? strlen(special) + 1 : 0;
m.VFS_MOUNT_PATHLEN = strlen(name) + 1;
m.VFS_MOUNT_TYPELEN = strlen(type) + 1;
m.VFS_MOUNT_LABELLEN = strlen(label) + 1;
m.VFS_MOUNT_DEV = special;
m.VFS_MOUNT_PATH = name;
m.VFS_MOUNT_TYPE = type;
m.VFS_MOUNT_LABEL = label;
m.m_lc_vfs_mount.flags = mountflags;
m.m_lc_vfs_mount.devlen = special ? strlen(special) + 1 : 0;
m.m_lc_vfs_mount.pathlen = strlen(name) + 1;
m.m_lc_vfs_mount.typelen = strlen(type) + 1;
m.m_lc_vfs_mount.labellen = strlen(label) + 1;
m.m_lc_vfs_mount.dev = (vir_bytes)special;
m.m_lc_vfs_mount.path = (vir_bytes)name;
m.m_lc_vfs_mount.type = (vir_bytes)type;
m.m_lc_vfs_mount.label = (vir_bytes)label;
r = _syscall(VFS_PROC_NR, VFS_MOUNT, &m);
if (r != OK && !use_existing) {

18
servers/vfs/mount.c
View file

@ -93,15 +93,15 @@ int do_mount(void)
vir_bytes label, type, vname1, vname2;
size_t vname1_length, vname2_length, label_len, type_len;
mflags = job_m_in.VFS_MOUNT_FLAGS;
label = (vir_bytes) job_m_in.VFS_MOUNT_LABEL;
label_len = (size_t) job_m_in.VFS_MOUNT_LABELLEN;
vname1 = (vir_bytes) job_m_in.VFS_MOUNT_DEV;
vname1_length = (size_t) job_m_in.VFS_MOUNT_DEVLEN;
vname2 = (vir_bytes) job_m_in.VFS_MOUNT_PATH;
vname2_length = (size_t) job_m_in.VFS_MOUNT_PATHLEN;
type = (vir_bytes) job_m_in.VFS_MOUNT_TYPE;
type_len = (size_t) job_m_in.VFS_MOUNT_TYPELEN;
mflags = job_m_in.m_lc_vfs_mount.flags;
label = job_m_in.m_lc_vfs_mount.label;
label_len = job_m_in.m_lc_vfs_mount.labellen;
vname1 = job_m_in.m_lc_vfs_mount.dev;
vname1_length = job_m_in.m_lc_vfs_mount.devlen;
vname2 = job_m_in.m_lc_vfs_mount.path;
vname2_length = job_m_in.m_lc_vfs_mount.pathlen;
type = job_m_in.m_lc_vfs_mount.type;
type_len = job_m_in.m_lc_vfs_mount.typelen;
/* Only the super-user may do MOUNT. */
if (!super_user) return(EPERM);