1c2f99d7cSDavid van Moolenbroek #include "inc.h" 2c2f99d7cSDavid van Moolenbroek #include <minix/vfsif.h> 3c2f99d7cSDavid van Moolenbroek fs_mount(dev_t dev,unsigned int __unused flags,struct fsdriver_node * root_node,unsigned int * res_flags)4c2f99d7cSDavid van Moolenbroekint fs_mount(dev_t dev, unsigned int __unused flags, 5c2f99d7cSDavid van Moolenbroek struct fsdriver_node *root_node, unsigned int *res_flags) 6c2f99d7cSDavid van Moolenbroek { 7c2f99d7cSDavid van Moolenbroek int r; 8c2f99d7cSDavid van Moolenbroek 9c2f99d7cSDavid van Moolenbroek fs_dev = dev; 10c2f99d7cSDavid van Moolenbroek 11c2f99d7cSDavid van Moolenbroek /* Open the device the file system lives on in read only mode */ 12c2f99d7cSDavid van Moolenbroek if (bdev_open(fs_dev, BDEV_R_BIT) != OK) 13c2f99d7cSDavid van Moolenbroek return EINVAL; 14c2f99d7cSDavid van Moolenbroek 15c2f99d7cSDavid van Moolenbroek /* Read the superblock */ 16c2f99d7cSDavid van Moolenbroek r = read_vds(&v_pri, fs_dev); 17c2f99d7cSDavid van Moolenbroek if (r != OK) { 18c2f99d7cSDavid van Moolenbroek bdev_close(fs_dev); 19c2f99d7cSDavid van Moolenbroek return r; 20c2f99d7cSDavid van Moolenbroek } 21c2f99d7cSDavid van Moolenbroek 22c2f99d7cSDavid van Moolenbroek /* Return some root inode properties */ 23c2f99d7cSDavid van Moolenbroek root_node->fn_ino_nr = v_pri.inode_root->i_stat.st_ino; 24c2f99d7cSDavid van Moolenbroek root_node->fn_mode = v_pri.inode_root->i_stat.st_mode; 25c2f99d7cSDavid van Moolenbroek root_node->fn_size = v_pri.inode_root->i_stat.st_size; 26c2f99d7cSDavid van Moolenbroek root_node->fn_uid = SYS_UID; /* Always root */ 27*77e79d33SDavid van Moolenbroek root_node->fn_gid = SYS_GID; /* wheel */ 28c2f99d7cSDavid van Moolenbroek root_node->fn_dev = NO_DEV; 29c2f99d7cSDavid van Moolenbroek 30c2f99d7cSDavid van Moolenbroek *res_flags = RES_NOFLAGS; 31c2f99d7cSDavid van Moolenbroek 32c2f99d7cSDavid van Moolenbroek return r; 33c2f99d7cSDavid van Moolenbroek } 34c2f99d7cSDavid van Moolenbroek fs_mountpt(ino_t ino_nr)35c2f99d7cSDavid van Moolenbroekint fs_mountpt(ino_t ino_nr) 36c2f99d7cSDavid van Moolenbroek { 37c2f99d7cSDavid van Moolenbroek /* 38c2f99d7cSDavid van Moolenbroek * This function looks up the mount point, it checks the condition 39c2f99d7cSDavid van Moolenbroek * whether the partition can be mounted on the inode or not. 40c2f99d7cSDavid van Moolenbroek */ 41c2f99d7cSDavid van Moolenbroek struct inode *rip; 42c2f99d7cSDavid van Moolenbroek 43b1d06847SJean-Baptiste Boric if ((rip = get_inode(ino_nr)) == NULL) 44c2f99d7cSDavid van Moolenbroek return EINVAL; 45c2f99d7cSDavid van Moolenbroek 46c2f99d7cSDavid van Moolenbroek if (rip->i_mountpoint) 47c2f99d7cSDavid van Moolenbroek return EBUSY; 48c2f99d7cSDavid van Moolenbroek 49c2f99d7cSDavid van Moolenbroek /* The inode must be a directory. */ 50c2f99d7cSDavid van Moolenbroek if ((rip->i_stat.st_mode & I_TYPE) != I_DIRECTORY) 51c2f99d7cSDavid van Moolenbroek return ENOTDIR; 52c2f99d7cSDavid van Moolenbroek 53c2f99d7cSDavid van Moolenbroek rip->i_mountpoint = TRUE; 54c2f99d7cSDavid van Moolenbroek 55c2f99d7cSDavid van Moolenbroek return OK; 56c2f99d7cSDavid van Moolenbroek } 57c2f99d7cSDavid van Moolenbroek fs_unmount(void)58c2f99d7cSDavid van Moolenbroekvoid fs_unmount(void) 59c2f99d7cSDavid van Moolenbroek { 60c2f99d7cSDavid van Moolenbroek release_vol_pri_desc(&v_pri); /* Release the super block */ 61c2f99d7cSDavid van Moolenbroek 62c2f99d7cSDavid van Moolenbroek bdev_close(fs_dev); 63c2f99d7cSDavid van Moolenbroek 64c2f99d7cSDavid van Moolenbroek if (check_inodes() == FALSE) 65b1d06847SJean-Baptiste Boric puts("ISOFS: unmounting with in-use inodes!\n"); 66c2f99d7cSDavid van Moolenbroek } 67