/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_NFS_XDR_H #define _LINUX_NFS_XDR_H #include <linux/nfsacl.h> #include <linux/sunrpc/gss_api.h> /* * To change the maximum rsize and wsize supported by the NFS client, adjust * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can * support a megabyte or more. The default is left at 4096 bytes, which is * reasonable for NFS over UDP. */ #define NFS_MAX_FILE_IO_SIZE (1048576U) #define NFS_DEF_FILE_IO_SIZE (4096U) #define NFS_MIN_FILE_IO_SIZE (1024U) #define NFS_BITMASK_SZ 3 struct nfs4_string { unsigned int len; char *data; }; struct nfs_fsid { uint64_t major; uint64_t minor; }; /* * Helper for checking equality between 2 fsids. */ static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b) { return a->major == b->major && a->minor == b->minor; } struct nfs4_threshold { __u32 bm; __u32 l_type; __u64 rd_sz; __u64 wr_sz; __u64 rd_io_sz; __u64 wr_io_sz; }; struct nfs_fattr { unsigned int valid; /* which fields are valid */ umode_t mode; __u32 nlink; kuid_t uid; kgid_t gid; dev_t rdev; __u64 size; union { struct { __u32 blocksize; __u32 blocks; } nfs2; struct { __u64 used; } nfs3; } du; struct nfs_fsid fsid; __u64 fileid; __u64 mounted_on_fileid; struct timespec64 atime; struct timespec64 mtime; struct timespec64 ctime; __u64 change_attr; /* NFSv4 change attribute */ __u64 pre_change_attr;/* pre-op NFSv4 change attribute */ __u64 pre_size; /* pre_op_attr.size */ struct timespec64 pre_mtime; /* pre_op_attr.mtime */ struct timespec64 pre_ctime; /* pre_op_attr.ctime */ unsigned long time_start; unsigned long gencount; struct nfs4_string *owner_name; struct nfs4_string *group_name; struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */ struct nfs4_label *label; }; #define NFS_ATTR_FATTR_TYPE (1U << 0) #define NFS_ATTR_FATTR_MODE (1U << 1) #define NFS_ATTR_FATTR_NLINK (1U << 2) #define NFS_ATTR_FATTR_OWNER (1U << 3) #define NFS_ATTR_FATTR_GROUP (1U << 4) #define NFS_ATTR_FATTR_RDEV (1U << 5) #define NFS_ATTR_FATTR_SIZE (1U << 6) #define NFS_ATTR_FATTR_PRESIZE (1U << 7) #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8) #define NFS_ATTR_FATTR_SPACE_USED (1U << 9) #define NFS_ATTR_FATTR_FSID (1U << 10) #define NFS_ATTR_FATTR_FILEID (1U << 11) #define NFS_ATTR_FATTR_ATIME (1U << 12) #define NFS_ATTR_FATTR_MTIME (1U << 13) #define NFS_ATTR_FATTR_CTIME (1U << 14) #define NFS_ATTR_FATTR_PREMTIME (1U << 15) #define NFS_ATTR_FATTR_PRECTIME (1U << 16) #define NFS_ATTR_FATTR_CHANGE (1U << 17) #define NFS_ATTR_FATTR_PRECHANGE (1U << 18) #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19) #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20) #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21) #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22) #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23) #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24) #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25) #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ | NFS_ATTR_FATTR_MODE \ | NFS_ATTR_FATTR_NLINK \ | NFS_ATTR_FATTR_OWNER \ | NFS_ATTR_FATTR_GROUP \ | NFS_ATTR_FATTR_RDEV \ | NFS_ATTR_FATTR_SIZE \ | NFS_ATTR_FATTR_FSID \ | NFS_ATTR_FATTR_FILEID \ | NFS_ATTR_FATTR_ATIME \ | NFS_ATTR_FATTR_MTIME \ | NFS_ATTR_FATTR_CTIME \ | NFS_ATTR_FATTR_CHANGE) #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \ | NFS_ATTR_FATTR_BLOCKS_USED) #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \ | NFS_ATTR_FATTR_SPACE_USED) #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \ | NFS_ATTR_FATTR_SPACE_USED \ | NFS_ATTR_FATTR_V4_SECURITY_LABEL) /* * Maximal number of supported layout drivers. */ #define NFS_MAX_LAYOUT_TYPES 8 /* * Info on the file system */ struct nfs_fsinfo { struct nfs_fattr *fattr; /* Post-op attributes */ __u32 rtmax; /* max. read transfer size */ __u32 rtpref; /* pref. read transfer size */ __u32 rtmult; /* reads should be multiple of this */ __u32 wtmax; /* max. write transfer size */ __u32 wtpref; /* pref. write transfer size */ __u32 wtmult; /* writes should be multiple of this */ __u32 dtpref; /* pref. readdir transfer size */ __u64 maxfilesize; struct timespec64 time_delta; /* server time granularity */ __u32 lease_time; /* in seconds */ __u32 nlayouttypes; /* number of layouttypes */ __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */ __u32 blksize; /* preferred pnfs io block size */ __u32 clone_blksize; /* granularity of a CLONE operation */ enum nfs4_change_attr_type change_attr_type; /* Info about change attr */ __u32 xattr_support; /* User xattrs supported */ }; struct nfs_fsstat { struct nfs_fattr *fattr; /* Post-op attributes */ __u64 tbytes; /* total size in bytes */ __u64 fbytes; /* # of free bytes */ __u64 abytes; /* # of bytes available to user */ __u64 tfiles; /* # of files */ __u64 ffiles; /* # of free files */ __u64 afiles; /* # of files available to user */ }; struct nfs2_fsstat { __u32 tsize; /* Server transfer size */ __u32 bsize; /* Filesystem block size */ __u32 blocks; /* No. of "bsize" blocks on filesystem */ __u32 bfree; /* No. of free "bsize" blocks */ __u32 bavail; /* No. of available "bsize" blocks */ }; struct nfs_pathconf { struct nfs_fattr *fattr; /* Post-op attributes */ __u32 max_link; /* max # of hard links */ __u32 max_namelen; /* max name length */ }; struct nfs4_change_info { u32 atomic; u64 before; u64 after; }; struct nfs_seqid; /* nfs41 sessions channel attributes */ struct nfs4_channel_attrs { u32 max_rqst_sz; u32 max_resp_sz; u32 max_resp_sz_cached; u32 max_ops; u32 max_reqs; }; struct nfs4_slot; struct nfs4_sequence_args { struct nfs4_slot *sa_slot; u8 sa_cache_this : 1, sa_privileged : 1; }; struct nfs4_sequence_res { struct nfs4_slot *sr_slot; /* slot used to send request */ unsigned long sr_timestamp; int sr_status; /* sequence operation status */ u32 sr_status_flags; u32 sr_highest_slotid; u32 sr_target_highest_slotid; }; struct nfs4_get_lease_time_args { struct nfs4_sequence_args la_seq_args; }; struct nfs4_get_lease_time_res { struct nfs4_sequence_res lr_seq_res; struct nfs_fsinfo *lr_fsinfo; }; struct xdr_stream; struct nfs4_xdr_opaque_data; struct nfs4_xdr_opaque_ops { void (*encode)(struct xdr_stream *, const void *args, const struct nfs4_xdr_opaque_data *); void (*free)(struct nfs4_xdr_opaque_data *); }; struct nfs4_xdr_opaque_data { const struct nfs4_xdr_opaque_ops *ops; void *data; }; #define PNFS_LAYOUT_MAXSIZE 4096 struct nfs4_layoutdriver_data { struct page **pages; __u32 pglen; __u32 len; }; struct pnfs_layout_range { u32 iomode; u64 offset; u64 length; }; struct nfs4_layoutget_args { struct nfs4_sequence_args seq_args; __u32 type; struct pnfs_layout_range range; __u64 minlength; __u32 maxcount; struct inode *inode; struct nfs_open_context *ctx; nfs4_stateid stateid; struct nfs4_layoutdriver_data layout; }; struct nfs4_layoutget_res { struct nfs4_sequence_res seq_res; int status; __u32 return_on_close; struct pnfs_layout_range range; __u32 type; nfs4_stateid stateid; struct nfs4_layoutdriver_data *layoutp; }; struct nfs4_layoutget { struct nfs4_layoutget_args args; struct nfs4_layoutget_res res; const struct cred *cred; struct pnfs_layout_hdr *lo; gfp_t gfp_flags; }; struct nfs4_getdeviceinfo_args { struct nfs4_sequence_args seq_args; struct pnfs_device *pdev; __u32 notify_types; }; struct nfs4_getdeviceinfo_res { struct nfs4_sequence_res seq_res; struct pnfs_device *pdev; __u32 notification; }; struct nfs4_layoutcommit_args { struct nfs4_sequence_args seq_args; nfs4_stateid stateid; __u64 lastbytewritten; struct inode *inode; const u32 *bitmask; size_t layoutupdate_len; struct page *layoutupdate_page; struct page **layoutupdate_pages; __be32 *start_p; }; struct nfs4_layoutcommit_res { struct nfs4_sequence_res seq_res; struct nfs_fattr *fattr; const struct nfs_server *server; int status; }; struct nfs4_layoutcommit_data { struct rpc_task task; struct nfs_fattr fattr; struct list_head lseg_list; const struct cred *cred; struct inode *inode; struct nfs4_layoutcommit_args args; struct nfs4_layoutcommit_res res; }; struct nfs4_layoutreturn_args { struct nfs4_sequence_args seq_args; struct pnfs_layout_hdr *layout; struct inode *inode; struct pnfs_layout_range range; nfs4_stateid stateid; __u32 layout_type; struct nfs4_xdr_opaque_data *ld_private; }; struct nfs4_layoutreturn_res { struct nfs4_sequence_res seq_res; u32 lrs_present; nfs4_stateid stateid; }; struct nfs4_layoutreturn { struct nfs4_layoutreturn_args args; struct nfs4_layoutreturn_res res; const struct cred *cred; struct nfs_client *clp; struct inode *inode; int rpc_status; struct nfs4_xdr_opaque_data ld_private; }; #define PNFS_LAYOUTSTATS_MAXSIZE 256 struct nfs42_layoutstat_args; struct nfs42_layoutstat_devinfo; typedef void (*layoutstats_encode_t)(struct xdr_stream *, struct nfs42_layoutstat_args *, struct nfs42_layoutstat_devinfo *); /* Per file per deviceid layoutstats */ struct nfs42_layoutstat_devinfo { struct nfs4_deviceid dev_id; __u64 offset; __u64 length; __u64 read_count; __u64 read_bytes; __u64 write_count; __u64 write_bytes; __u32 layout_type; struct nfs4_xdr_opaque_data ld_private; }; struct nfs42_layoutstat_args { struct nfs4_sequence_args seq_args; struct nfs_fh *fh; struct inode *inode; nfs4_stateid stateid; int num_dev; struct nfs42_layoutstat_devinfo *devinfo; }; struct nfs42_layoutstat_res { struct nfs4_sequence_res seq_res; int num_dev; int rpc_status; }; struct nfs42_layoutstat_data { struct inode *inode; struct nfs42_layoutstat_args args; struct nfs42_layoutstat_res res; }; struct nfs42_device_error { struct nfs4_deviceid dev_id; int status; enum nfs_opnum4 opnum; }; struct nfs42_layout_error { __u64 offset; __u64 length; nfs4_stateid stateid; struct nfs42_device_error errors[1]; }; #define NFS42_LAYOUTERROR_MAX 5 struct nfs42_layouterror_args { struct nfs4_sequence_args seq_args; struct inode *inode; unsigned int num_errors; struct nfs42_layout_error errors[NFS42_LAYOUTERROR_MAX]; }; struct nfs42_layouterror_res { struct nfs4_sequence_res seq_res; unsigned int num_errors; int rpc_status; }; struct nfs42_layouterror_data { struct nfs42_layouterror_args args; struct nfs42_layouterror_res res; struct inode *inode; struct pnfs_layout_segment *lseg; }; struct nfs42_clone_args { struct nfs4_sequence_args seq_args; struct nfs_fh *src_fh; struct nfs_fh *dst_fh; nfs4_stateid src_stateid; nfs4_stateid dst_stateid; __u64 src_offset; __u64 dst_offset; __u64 count; const u32 *dst_bitmask; }; struct nfs42_clone_res { struct nfs4_sequence_res seq_res; unsigned int rpc_status; struct nfs_fattr *dst_fattr; const struct nfs_server *server; }; struct stateowner_id { __u64 create_time; __u32 uniquifier; }; /* * Arguments to the open call. */ struct nfs_openargs { struct nfs4_sequence_args seq_args; const struct nfs_fh * fh; struct nfs_seqid * seqid; int open_flags; fmode_t fmode; u32 share_access; u32 access; __u64 clientid; struct stateowner_id id; union { struct { struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */ nfs4_verifier verifier; /* EXCLUSIVE */ }; nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ fmode_t delegation_type; /* CLAIM_PREVIOUS */ } u; const struct qstr * name; const struct nfs_server *server; /* Needed for ID mapping */ const u32 * bitmask; const u32 * open_bitmap; enum open_claim_type4 claim; enum createmode4 createmode; const struct nfs4_label *label; umode_t umask; struct nfs4_layoutget_args *lg_args; }; struct nfs_openres { struct nfs4_sequence_res seq_res; nfs4_stateid stateid; struct nfs_fh fh; struct nfs4_change_info cinfo; __u32 rflags; struct nfs_fattr * f_attr; struct nfs_seqid * seqid; const struct nfs_server *server; fmode_t delegation_type; nfs4_stateid delegation; unsigned long pagemod_limit; __u32 do_recall; __u32 attrset[NFS4_BITMAP_SIZE]; struct nfs4_string *owner; struct nfs4_string *group_owner; __u32 access_request; __u32 access_supported; __u32 access_result; struct nfs4_layoutget_res *lg_res; }; /* * Arguments to the open_confirm call. */ struct nfs_open_confirmargs { struct nfs4_sequence_args seq_args; const struct nfs_fh * fh; nfs4_stateid * stateid; struct nfs_seqid * seqid; }; struct nfs_open_confirmres { struct nfs4_sequence_res seq_res; nfs4_stateid stateid; struct nfs_seqid * seqid; }; /* * Arguments to the close call. */ struct nfs_closeargs { struct nfs4_sequence_args seq_args; struct nfs_fh * fh; nfs4_stateid stateid; struct nfs_seqid * seqid; fmode_t fmode; u32 share_access; const u32 * bitmask; u32 bitmask_store[NFS_BITMASK_SZ]; struct nfs4_layoutreturn_args *lr_args; }; struct nfs_closeres { struct nfs4_sequence_res seq_res; nfs4_stateid stateid; struct nfs_fattr * fattr; struct nfs_seqid * seqid; const struct nfs_server *server; struct nfs4_layoutreturn_res *lr_res; int lr_ret; }; /* * * Arguments to the lock,lockt, and locku call. * */ struct nfs_lowner { __u64 clientid; __u64 id; dev_t s_dev; }; struct nfs_lock_args { struct nfs4_sequence_args seq_args; struct nfs_fh * fh; struct file_lock * fl; struct nfs_seqid * lock_seqid; nfs4_stateid lock_stateid; struct nfs_seqid * open_seqid; nfs4_stateid open_stateid; struct nfs_lowner lock_owner; unsigned char block : 1; unsigned char reclaim : 1; unsigned char new_lock : 1; unsigned char new_lock_owner : 1; }; struct nfs_lock_res { struct nfs4_sequence_res seq_res; nfs4_stateid stateid; struct nfs_seqid * lock_seqid; struct nfs_seqid * open_seqid; }; struct nfs_locku_args { struct nfs4_sequence_args seq_args; struct nfs_fh * fh; struct file_lock * fl; struct nfs_seqid * seqid; nfs4_stateid stateid; }; struct nfs_locku_res { struct nfs4_sequence_res seq_res; nfs4_stateid stateid; struct nfs_seqid * seqid; }; struct nfs_lockt_args { struct nfs4_sequence_args seq_args; struct nfs_fh * fh; struct file_lock * fl; struct nfs_lowner lock_owner; }; struct nfs_lockt_res { struct nfs4_sequence_res seq_res; struct file_lock * denied; /* LOCK, LOCKT failed */ }; struct nfs_release_lockowner_args { struct nfs4_sequence_args seq_args; struct nfs_lowner lock_owner; }; struct nfs_release_lockowner_res { struct nfs4_sequence_res seq_res; }; struct nfs4_delegreturnargs { struct nfs4_sequence_args seq_args; const struct nfs_fh *fhandle; const nfs4_stateid *stateid; const u32 *bitmask; u32 bitmask_store[NFS_BITMASK_SZ]; struct nfs4_layoutreturn_args *lr_args; }; struct nfs4_delegreturnres { struct nfs4_sequence_res seq_res; struct nfs_fattr * fattr; struct nfs_server *server; struct nfs4_layoutreturn_res *lr_res; int lr_ret; }; /* * Arguments to the write call. */ struct nfs_write_verifier { char data[8]; }; struct nfs_writeverf { struct nfs_write_verifier verifier; enum nfs3_stable_how committed; }; /* * Arguments shared by the read and write call. */ struct nfs_pgio_args { struct nfs4_sequence_args seq_args; struct nfs_fh * fh; struct nfs_open_context *context; struct nfs_lock_context *lock_context; nfs4_stateid stateid; __u64 offset; __u32 count; unsigned int pgbase; struct page ** pages; union { unsigned int replen; /* used by read */ struct { const u32 * bitmask; /* used by write */ u32 bitmask_store[NFS_BITMASK_SZ]; /* used by write */ enum nfs3_stable_how stable; /* used by write */ }; }; }; struct nfs_pgio_res { struct nfs4_sequence_res seq_res; struct nfs_fattr * fattr; __u64 count; __u32 op_status; union { struct { unsigned int replen; /* used by read */ int eof; /* used by read */ void * scratch; /* used by read */ }; struct { struct nfs_writeverf * verf; /* used by write */ const struct nfs_server *server; /* used by write */ }; }; }; /* * Arguments to the commit call. */ struct nfs_commitargs { struct nfs4_sequence_args seq_args; struct nfs_fh *fh; __u64 offset; __u32 count; const u32 *bitmask; }; struct nfs_commitres { struct nfs4_sequence_res seq_res; __u32 op_status; struct nfs_fattr *fattr; struct nfs_writeverf *verf; const struct nfs_server *server; }; /* * Common arguments to the unlink call */ struct nfs_removeargs { struct nfs4_sequence_args seq_args; const struct nfs_fh *fh; struct qstr name; }; struct nfs_removeres { struct nfs4_sequence_res seq_res; struct nfs_server *server; struct nfs_fattr *dir_attr; struct nfs4_change_info cinfo; }; /* * Common arguments to the rename call */ struct nfs_renameargs { struct nfs4_sequence_args seq_args; const struct nfs_fh *old_dir; const struct nfs_fh *new_dir; const struct qstr *old_name; const struct qstr *new_name; }; struct nfs_renameres { struct nfs4_sequence_res seq_res; struct nfs_server *server; struct nfs4_change_info old_cinfo; struct nfs_fattr *old_fattr; struct nfs4_change_info new_cinfo; struct nfs_fattr *new_fattr; }; /* parsed sec= options */ #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ struct nfs_auth_info { unsigned int flavor_len; rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; }; /* * Argument struct for decode_entry function */ struct nfs_entry { __u64 ino; __u64 cookie; const char * name; unsigned int len; int eof; struct nfs_fh * fh; struct nfs_fattr * fattr; unsigned char d_type; struct nfs_server * server; }; struct nfs_readdir_arg { struct dentry *dentry; const struct cred *cred; __be32 *verf; u64 cookie; struct page **pages; unsigned int page_len; bool plus; }; struct nfs_readdir_res { __be32 *verf; }; /* * The following types are for NFSv2 only. */ struct nfs_sattrargs { struct nfs_fh * fh; struct iattr * sattr; }; struct nfs_diropargs { struct nfs_fh * fh; const char * name; unsigned int len; }; struct nfs_createargs { struct nfs_fh * fh; const char * name; unsigned int len; struct iattr * sattr; }; struct nfs_setattrargs { struct nfs4_sequence_args seq_args; struct nfs_fh * fh; nfs4_stateid stateid; struct iattr * iap; const struct nfs_server * server; /* Needed for name mapping */ const u32 * bitmask; const struct nfs4_label *label; }; enum nfs4_acl_type { NFS4ACL_NONE = 0, NFS4ACL_ACL, NFS4ACL_DACL, NFS4ACL_SACL, }; struct nfs_setaclargs { struct nfs4_sequence_args seq_args; struct nfs_fh * fh; enum nfs4_acl_type acl_type; size_t acl_len; struct page ** acl_pages; }; struct nfs_setaclres { struct nfs4_sequence_res seq_res; }; struct nfs_getaclargs { struct nfs4_sequence_args seq_args; struct nfs_fh * fh; enum nfs4_acl_type acl_type; size_t acl_len; struct page ** acl_pages; }; /* getxattr ACL interface flags */ #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ struct nfs_getaclres { struct nfs4_sequence_res seq_res; enum nfs4_acl_type acl_type; size_t acl_len; size_t acl_data_offset; int acl_flags; struct page * acl_scratch; }; struct nfs_setattrres { struct nfs4_sequence_res seq_res; struct nfs_fattr * fattr; const struct nfs_server * server; }; struct nfs_linkargs { struct nfs_fh * fromfh; struct nfs_fh * tofh; const char * toname; unsigned int tolen; }; struct nfs_symlinkargs { struct nfs_fh * fromfh; const char * fromname; unsigned int fromlen; struct page ** pages; unsigned int pathlen; struct iattr * sattr; }; struct nfs_readdirargs { struct nfs_fh * fh; __u32 cookie; unsigned int count; struct page ** pages; }; struct nfs3_getaclargs { struct nfs_fh * fh; int mask; struct page ** pages; }; struct nfs3_setaclargs { struct inode * inode; int mask; struct posix_acl * acl_access; struct posix_acl * acl_default; size_t len; unsigned int npages; struct page ** pages; }; struct nfs_diropok { struct nfs_fh * fh; struct nfs_fattr * fattr; }; struct nfs_readlinkargs { struct nfs_fh * fh; unsigned int pgbase; unsigned int pglen; struct page ** pages; }; struct nfs3_sattrargs { struct nfs_fh * fh; struct iattr * sattr; unsigned int guard; struct timespec64 guardtime; }; struct nfs3_diropargs { struct nfs_fh * fh; const char * name; unsigned int len; }; struct nfs3_accessargs { struct nfs_fh * fh; __u32 access; }; struct nfs3_createargs { struct nfs_fh * fh; const char * name; unsigned int len; struct iattr * sattr; enum nfs3_createmode createmode; __be32 verifier[2]; }; struct nfs3_mkdirargs { struct nfs_fh * fh; const char * name; unsigned int len; struct iattr * sattr; }; struct nfs3_symlinkargs { struct nfs_fh * fromfh; const char * fromname; unsigned int fromlen; struct page ** pages; unsigned int pathlen; struct iattr * sattr; }; struct nfs3_mknodargs { struct nfs_fh * fh; const char * name; unsigned int len; enum nfs3_ftype type; struct iattr * sattr; dev_t rdev; }; struct nfs3_linkargs { struct nfs_fh * fromfh; struct nfs_fh * tofh; const char * toname; unsigned int tolen; }; struct nfs3_readdirargs { struct nfs_fh * fh; __u64 cookie; __be32 verf[2]; bool plus; unsigned int count; struct page ** pages; }; struct nfs3_diropres { struct nfs_fattr * dir_attr; struct nfs_fh * fh; struct nfs_fattr * fattr; }; struct nfs3_accessres { struct nfs_fattr * fattr; __u32 access; }; struct nfs3_readlinkargs { struct nfs_fh * fh; unsigned int pgbase; unsigned int pglen; struct page ** pages; }; struct nfs3_linkres { struct nfs_fattr * dir_attr; struct nfs_fattr * fattr; }; struct nfs3_readdirres { struct nfs_fattr * dir_attr; __be32 * verf; bool plus; }; struct nfs3_getaclres { struct nfs_fattr * fattr; int mask; unsigned int acl_access_count; unsigned int acl_default_count; struct posix_acl * acl_access; struct posix_acl * acl_default; }; #if IS_ENABLED(CONFIG_NFS_V4) typedef u64 clientid4; struct nfs4_accessargs { struct nfs4_sequence_args seq_args; const struct nfs_fh * fh; const u32 * bitmask; u32 access; }; struct nfs4_accessres { struct nfs4_sequence_res seq_res; const struct nfs_server * server; struct nfs_fattr * fattr; u32 supported; u32 access; }; struct nfs4_create_arg { struct nfs4_sequence_args seq_args; u32 ftype; union { struct { struct page ** pages; unsigned int len; } symlink; /* NF4LNK */ struct { u32 specdata1; u32 specdata2; } device; /* NF4BLK, NF4CHR */ } u; const struct qstr * name; const struct nfs_server * server; const struct iattr * attrs; const struct nfs_fh * dir_fh; const u32 * bitmask; const struct nfs4_label *label; umode_t umask; }; struct nfs4_create_res { struct nfs4_sequence_res seq_res; const struct nfs_server * server; struct nfs_fh * fh; struct nfs_fattr * fattr; struct nfs4_change_info dir_cinfo; }; struct nfs4_fsinfo_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh * fh; const u32 * bitmask; }; struct nfs4_fsinfo_res { struct nfs4_sequence_res seq_res; struct nfs_fsinfo *fsinfo; }; struct nfs4_getattr_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh * fh; const u32 * bitmask; }; struct nfs4_getattr_res { struct nfs4_sequence_res seq_res; const struct nfs_server * server; struct nfs_fattr * fattr; }; struct nfs4_link_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh * fh; const struct nfs_fh * dir_fh; const struct qstr * name; const u32 * bitmask; }; struct nfs4_link_res { struct nfs4_sequence_res seq_res; const struct nfs_server * server; struct nfs_fattr * fattr; struct nfs4_change_info cinfo; struct nfs_fattr * dir_attr; }; struct nfs4_lookup_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh * dir_fh; const struct qstr * name; const u32 * bitmask; }; struct nfs4_lookup_res { struct nfs4_sequence_res seq_res; const struct nfs_server * server; struct nfs_fattr * fattr; struct nfs_fh * fh; }; struct nfs4_lookupp_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh *fh; const u32 *bitmask; }; struct nfs4_lookupp_res { struct nfs4_sequence_res seq_res; const struct nfs_server *server; struct nfs_fattr *fattr; struct nfs_fh *fh; }; struct nfs4_lookup_root_arg { struct nfs4_sequence_args seq_args; const u32 * bitmask; }; struct nfs4_pathconf_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh * fh; const u32 * bitmask; }; struct nfs4_pathconf_res { struct nfs4_sequence_res seq_res; struct nfs_pathconf *pathconf; }; struct nfs4_readdir_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh * fh; u64 cookie; nfs4_verifier verifier; u32 count; struct page ** pages; /* zero-copy data */ unsigned int pgbase; /* zero-copy data */ const u32 * bitmask; bool plus; }; struct nfs4_readdir_res { struct nfs4_sequence_res seq_res; nfs4_verifier verifier; unsigned int pgbase; }; struct nfs4_readlink { struct nfs4_sequence_args seq_args; const struct nfs_fh * fh; unsigned int pgbase; unsigned int pglen; /* zero-copy data */ struct page ** pages; /* zero-copy data */ }; struct nfs4_readlink_res { struct nfs4_sequence_res seq_res; }; struct nfs4_setclientid { const nfs4_verifier * sc_verifier; u32 sc_prog; unsigned int sc_netid_len; char sc_netid[RPCBIND_MAXNETIDLEN + 1]; unsigned int sc_uaddr_len; char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; struct nfs_client *sc_clnt; struct rpc_cred *sc_cred; }; struct nfs4_setclientid_res { u64 clientid; nfs4_verifier confirm; }; struct nfs4_statfs_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh * fh; const u32 * bitmask; }; struct nfs4_statfs_res { struct nfs4_sequence_res seq_res; struct nfs_fsstat *fsstat; }; struct nfs4_server_caps_arg { struct nfs4_sequence_args seq_args; struct nfs_fh *fhandle; const u32 * bitmask; }; struct nfs4_server_caps_res { struct nfs4_sequence_res seq_res; u32 attr_bitmask[3]; u32 exclcreat_bitmask[3]; u32 acl_bitmask; u32 has_links; u32 has_symlinks; u32 fh_expire_type; u32 case_insensitive; u32 case_preserving; }; #define NFS4_PATHNAME_MAXCOMPONENTS 512 struct nfs4_pathname { unsigned int ncomponents; struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; }; #define NFS4_FS_LOCATION_MAXSERVERS 10 struct nfs4_fs_location { unsigned int nservers; struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; struct nfs4_pathname rootpath; }; #define NFS4_FS_LOCATIONS_MAXENTRIES 10 struct nfs4_fs_locations { struct nfs_fattr *fattr; const struct nfs_server *server; struct nfs4_pathname fs_path; int nlocations; struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; }; struct nfs4_fs_locations_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh *dir_fh; const struct nfs_fh *fh; const struct qstr *name; struct page *page; const u32 *bitmask; clientid4 clientid; unsigned char migration:1, renew:1; }; struct nfs4_fs_locations_res { struct nfs4_sequence_res seq_res; struct nfs4_fs_locations *fs_locations; unsigned char migration:1, renew:1; }; struct nfs4_secinfo4 { u32 flavor; struct rpcsec_gss_info flavor_info; }; struct nfs4_secinfo_flavors { unsigned int num_flavors; struct nfs4_secinfo4 flavors[]; }; struct nfs4_secinfo_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh *dir_fh; const struct qstr *name; }; struct nfs4_secinfo_res { struct nfs4_sequence_res seq_res; struct nfs4_secinfo_flavors *flavors; }; struct nfs4_fsid_present_arg { struct nfs4_sequence_args seq_args; const struct nfs_fh *fh; clientid4 clientid; unsigned char renew:1; }; struct nfs4_fsid_present_res { struct nfs4_sequence_res seq_res; struct nfs_fh *fh; unsigned char renew:1; }; #endif /* CONFIG_NFS_V4 */ struct nfstime4 { u64 seconds; u32 nseconds; }; #ifdef CONFIG_NFS_V4_1 struct pnfs_commit_bucket { struct list_head written; struct list_head committing; struct pnfs_layout_segment *lseg; struct nfs_writeverf direct_verf; }; struct pnfs_commit_array { struct list_head cinfo_list; struct list_head lseg_list; struct pnfs_layout_segment *lseg; struct rcu_head rcu; refcount_t refcount; unsigned int nbuckets; struct pnfs_commit_bucket buckets[]; }; struct pnfs_ds_commit_info { struct list_head commits; unsigned int nwritten; unsigned int ncommitting; const struct pnfs_commit_ops *ops; }; struct nfs41_state_protection { u32 how; struct nfs4_op_map enforce; struct nfs4_op_map allow; }; struct nfs41_exchange_id_args { struct nfs_client *client; nfs4_verifier verifier; u32 flags; struct nfs41_state_protection state_protect; }; struct nfs41_server_owner { uint64_t minor_id; uint32_t major_id_sz; char major_id[NFS4_OPAQUE_LIMIT]; }; struct nfs41_server_scope { uint32_t server_scope_sz; char server_scope[NFS4_OPAQUE_LIMIT]; }; struct nfs41_impl_id { char domain[NFS4_OPAQUE_LIMIT + 1]; char name[NFS4_OPAQUE_LIMIT + 1]; struct nfstime4 date; }; #define MAX_BIND_CONN_TO_SESSION_RETRIES 3 struct nfs41_bind_conn_to_session_args { struct nfs_client *client; struct nfs4_sessionid sessionid; u32 dir; bool use_conn_in_rdma_mode; int retries; }; struct nfs41_bind_conn_to_session_res { struct nfs4_sessionid sessionid; u32 dir; bool use_conn_in_rdma_mode; }; struct nfs41_exchange_id_res { u64 clientid; u32 seqid; u32 flags; struct nfs41_server_owner *server_owner; struct nfs41_server_scope *server_scope; struct nfs41_impl_id *impl_id; struct nfs41_state_protection state_protect; }; struct nfs41_create_session_args { struct nfs_client *client; u64 clientid; uint32_t seqid; uint32_t flags; uint32_t cb_program; struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ struct nfs4_channel_attrs bc_attrs; /* Back Channel */ }; struct nfs41_create_session_res { struct nfs4_sessionid sessionid; uint32_t seqid; uint32_t flags; struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ struct nfs4_channel_attrs bc_attrs; /* Back Channel */ }; struct nfs41_reclaim_complete_args { struct nfs4_sequence_args seq_args; /* In the future extend to include curr_fh for use with migration */ unsigned char one_fs:1; }; struct nfs41_reclaim_complete_res { struct nfs4_sequence_res seq_res; }; #define SECINFO_STYLE_CURRENT_FH 0 #define SECINFO_STYLE_PARENT 1 struct nfs41_secinfo_no_name_args { struct nfs4_sequence_args seq_args; int style; }; struct nfs41_test_stateid_args { struct nfs4_sequence_args seq_args; nfs4_stateid *stateid; }; struct nfs41_test_stateid_res { struct nfs4_sequence_res seq_res; unsigned int status; }; struct nfs41_free_stateid_args { struct nfs4_sequence_args seq_args; nfs4_stateid stateid; }; struct nfs41_free_stateid_res { struct nfs4_sequence_res seq_res; unsigned int status; }; #else struct pnfs_ds_commit_info { }; #endif /* CONFIG_NFS_V4_1 */ #ifdef CONFIG_NFS_V4_2 struct nfs42_falloc_args { struct nfs4_sequence_args seq_args; struct nfs_fh *falloc_fh; nfs4_stateid falloc_stateid; u64 falloc_offset; u64 falloc_length; const u32 *falloc_bitmask; }; struct nfs42_falloc_res { struct nfs4_sequence_res seq_res; unsigned int status; struct nfs_fattr *falloc_fattr; const struct nfs_server *falloc_server; }; struct nfs42_copy_args { struct nfs4_sequence_args seq_args; struct nfs_fh *src_fh; nfs4_stateid src_stateid; u64 src_pos; struct nfs_fh *dst_fh; nfs4_stateid dst_stateid; u64 dst_pos; u64 count; bool sync; struct nl4_server *cp_src; }; struct nfs42_write_res { nfs4_stateid stateid; u64 count; struct nfs_writeverf verifier; }; struct nfs42_copy_res { struct nfs4_sequence_res seq_res; struct nfs42_write_res write_res; bool consecutive; bool synchronous; struct nfs_commitres commit_res; }; struct nfs42_offload_status_args { struct nfs4_sequence_args osa_seq_args; struct nfs_fh *osa_src_fh; nfs4_stateid osa_stateid; }; struct nfs42_offload_status_res { struct nfs4_sequence_res osr_seq_res; uint64_t osr_count; int osr_status; }; struct nfs42_copy_notify_args { struct nfs4_sequence_args cna_seq_args; struct nfs_fh *cna_src_fh; nfs4_stateid cna_src_stateid; struct nl4_server cna_dst; }; struct nfs42_copy_notify_res { struct nfs4_sequence_res cnr_seq_res; struct nfstime4 cnr_lease_time; nfs4_stateid cnr_stateid; struct nl4_server cnr_src; }; struct nfs42_seek_args { struct nfs4_sequence_args seq_args; struct nfs_fh *sa_fh; nfs4_stateid sa_stateid; u64 sa_offset; u32 sa_what; }; struct nfs42_seek_res { struct nfs4_sequence_res seq_res; unsigned int status; u32 sr_eof; u64 sr_offset; }; struct nfs42_setxattrargs { struct nfs4_sequence_args seq_args; struct nfs_fh *fh; const u32 *bitmask; const char *xattr_name; u32 xattr_flags; size_t xattr_len; struct page **xattr_pages; }; struct nfs42_setxattrres { struct nfs4_sequence_res seq_res; struct nfs4_change_info cinfo; struct nfs_fattr *fattr; const struct nfs_server *server; }; struct nfs42_getxattrargs { struct nfs4_sequence_args seq_args; struct nfs_fh *fh; const char *xattr_name; size_t xattr_len; struct page **xattr_pages; }; struct nfs42_getxattrres { struct nfs4_sequence_res seq_res; size_t xattr_len; }; struct nfs42_listxattrsargs { struct nfs4_sequence_args seq_args; struct nfs_fh *fh; u32 count; u64 cookie; struct page **xattr_pages; }; struct nfs42_listxattrsres { struct nfs4_sequence_res seq_res; struct page *scratch; void *xattr_buf; size_t xattr_len; u64 cookie; bool eof; size_t copied; }; struct nfs42_removexattrargs { struct nfs4_sequence_args seq_args; struct nfs_fh *fh; const char *xattr_name; }; struct nfs42_removexattrres { struct nfs4_sequence_res seq_res; struct nfs4_change_info cinfo; }; #endif /* CONFIG_NFS_V4_2 */ struct nfs_page; #define NFS_PAGEVEC_SIZE (8U) struct nfs_page_array { struct page **pagevec; unsigned int npages; /* Max length of pagevec */ struct page *page_array[NFS_PAGEVEC_SIZE]; }; /* used as flag bits in nfs_pgio_header */ enum { NFS_IOHDR_ERROR = 0, NFS_IOHDR_EOF, NFS_IOHDR_REDO, NFS_IOHDR_STAT, NFS_IOHDR_RESEND_PNFS, NFS_IOHDR_RESEND_MDS, NFS_IOHDR_UNSTABLE_WRITES, }; struct nfs_io_completion; struct nfs_pgio_header { struct inode *inode; const struct cred *cred; struct list_head pages; struct nfs_page *req; struct nfs_writeverf verf; /* Used for writes */ fmode_t rw_mode; struct pnfs_layout_segment *lseg; loff_t io_start; const struct rpc_call_ops *mds_ops; void (*release) (struct nfs_pgio_header *hdr); const struct nfs_pgio_completion_ops *completion_ops; const struct nfs_rw_ops *rw_ops; struct nfs_io_completion *io_completion; struct nfs_direct_req *dreq; #ifdef CONFIG_NFS_FSCACHE void *netfs; #endif int pnfs_error; int error; /* merge with pnfs_error */ unsigned int good_bytes; /* boundary of good data */ unsigned long flags; /* * rpc data */ struct rpc_task task; struct nfs_fattr fattr; struct nfs_pgio_args args; /* argument struct */ struct nfs_pgio_res res; /* result struct */ unsigned long timestamp; /* For lease renewal */ int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); __u64 mds_offset; /* Filelayout dense stripe */ struct nfs_page_array page_array; struct nfs_client *ds_clp; /* pNFS data server */ u32 ds_commit_idx; /* ds index if ds_clp is set */ u32 pgio_mirror_idx;/* mirror index in pgio layer */ }; struct nfs_mds_commit_info { atomic_t rpcs_out; atomic_long_t ncommit; struct list_head list; }; struct nfs_commit_info; struct nfs_commit_data; struct nfs_inode; struct nfs_commit_completion_ops { void (*completion) (struct nfs_commit_data *data); void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); }; struct nfs_commit_info { struct inode *inode; /* Needed for inode->i_lock */ struct nfs_mds_commit_info *mds; struct pnfs_ds_commit_info *ds; struct nfs_direct_req *dreq; /* O_DIRECT request */ const struct nfs_commit_completion_ops *completion_ops; }; struct nfs_commit_data { struct rpc_task task; struct inode *inode; const struct cred *cred; struct nfs_fattr fattr; struct nfs_writeverf verf; struct list_head pages; /* Coalesced requests we wish to flush */ struct list_head list; /* lists of struct nfs_write_data */ struct nfs_direct_req *dreq; /* O_DIRECT request */ struct nfs_commitargs args; /* argument struct */ struct nfs_commitres res; /* result struct */ struct nfs_open_context *context; struct pnfs_layout_segment *lseg; struct nfs_client *ds_clp; /* pNFS data server */ int ds_commit_index; loff_t lwb; const struct rpc_call_ops *mds_ops; const struct nfs_commit_completion_ops *completion_ops; int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); unsigned long flags; }; struct nfs_pgio_completion_ops { void (*error_cleanup)(struct list_head *head, int); void (*init_hdr)(struct nfs_pgio_header *hdr); void (*completion)(struct nfs_pgio_header *hdr); void (*reschedule_io)(struct nfs_pgio_header *hdr); }; struct nfs_unlinkdata { struct nfs_removeargs args; struct nfs_removeres res; struct dentry *dentry; wait_queue_head_t wq; const struct cred *cred; struct nfs_fattr dir_attr; long timeout; }; struct nfs_renamedata { struct nfs_renameargs args; struct nfs_renameres res; struct rpc_task task; const struct cred *cred; struct inode *old_dir; struct dentry *old_dentry; struct nfs_fattr old_fattr; struct inode *new_dir; struct dentry *new_dentry; struct nfs_fattr new_fattr; void (*complete)(struct rpc_task *, struct nfs_renamedata *); long timeout; bool cancelled; }; struct nfs_access_entry; struct nfs_client; struct rpc_timeout; struct nfs_subversion; struct nfs_mount_info; struct nfs_client_initdata; struct nfs_pageio_descriptor; struct fs_context; /* * RPC procedure vector for NFSv2/NFSv3 demuxing */ struct nfs_rpc_ops { u32 version; /* Protocol version */ const struct dentry_operations *dentry_ops; const struct inode_operations *dir_inode_ops; const struct inode_operations *file_inode_ops; const struct file_operations *file_ops; const struct nlmclnt_operations *nlmclnt_ops; int (*getroot) (struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *); int (*submount) (struct fs_context *, struct nfs_server *); int (*try_get_tree) (struct fs_context *); int (*getattr) (struct nfs_server *, struct nfs_fh *, struct nfs_fattr *, struct inode *); int (*setattr) (struct dentry *, struct nfs_fattr *, struct iattr *); int (*lookup) (struct inode *, struct dentry *, struct nfs_fh *, struct nfs_fattr *); int (*lookupp) (struct inode *, struct nfs_fh *, struct nfs_fattr *); int (*access) (struct inode *, struct nfs_access_entry *, const struct cred *); int (*readlink)(struct inode *, struct page *, unsigned int, unsigned int); int (*create) (struct inode *, struct dentry *, struct iattr *, int); int (*remove) (struct inode *, struct dentry *); void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); int (*unlink_done) (struct rpc_task *, struct inode *); void (*rename_setup) (struct rpc_message *msg, struct dentry *old_dentry, struct dentry *new_dentry); void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); int (*link) (struct inode *, struct inode *, const struct qstr *); int (*symlink) (struct inode *, struct dentry *, struct folio *, unsigned int, struct iattr *); int (*mkdir) (struct inode *, struct dentry *, struct iattr *); int (*rmdir) (struct inode *, const struct qstr *); int (*readdir) (struct nfs_readdir_arg *, struct nfs_readdir_res *); int (*mknod) (struct inode *, struct dentry *, struct iattr *, dev_t); int (*statfs) (struct nfs_server *, struct nfs_fh *, struct nfs_fsstat *); int (*fsinfo) (struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *); int (*pathconf) (struct nfs_server *, struct nfs_fh *, struct nfs_pathconf *); int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); int (*pgio_rpc_prepare)(struct rpc_task *, struct nfs_pgio_header *); void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, struct rpc_clnt **); int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, struct rpc_clnt **); void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); int (*lock)(struct file *, int, struct file_lock *); int (*lock_check_bounds)(const struct file_lock *); void (*clear_acl_cache)(struct inode *); void (*close_context)(struct nfs_open_context *ctx, int); struct inode * (*open_context) (struct inode *dir, struct nfs_open_context *ctx, int open_flags, struct iattr *iattr, int *); int (*have_delegation)(struct inode *, fmode_t); struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); struct nfs_client *(*init_client) (struct nfs_client *, const struct nfs_client_initdata *); void (*free_client) (struct nfs_client *); struct nfs_server *(*create_server)(struct fs_context *); struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, struct nfs_fattr *, rpc_authflavor_t); int (*discover_trunking)(struct nfs_server *, struct nfs_fh *); void (*enable_swap)(struct inode *inode); void (*disable_swap)(struct inode *inode); }; /* * NFS_CALL(getattr, inode, (fattr)); * into * NFS_PROTO(inode)->getattr(fattr); */ #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args /* * Function vectors etc. for the NFS client */ extern const struct nfs_rpc_ops nfs_v2_clientops; extern const struct nfs_rpc_ops nfs_v3_clientops; extern const struct nfs_rpc_ops nfs_v4_clientops; extern const struct rpc_version nfs_version2; extern const struct rpc_version nfs_version3; extern const struct rpc_version nfs_version4; extern const struct rpc_version nfsacl_version3; extern const struct rpc_program nfsacl_program; #endif

Es la eliminación del sarro y la placa adherida a la superficie de los dientes mediante un equipo de ultrasonidos que garantiza la integridad de las piezas dentales a la vez que elimina en profundidad cualquier resto de suciedad.

A continuación se procede al pulido de los dientes mediante una fresa especial que elimina la placa bacteriana y devuelve a los dientes el aspecto sano que deben tener.

Una vez terminado todo el proceso, se mantiene al perro en observación hasta que se despierta de la anestesia, bajo la atenta supervisión de un veterinario.

¿Cada cuánto tiempo tengo que hacerle una limpieza dental a mi perro?

A partir de cierta edad, los perros pueden necesitar una limpieza dental anual o bianual. Depende de cada caso. En líneas generales, puede decirse que los perros de razas pequeñas suelen acumular más sarro y suelen necesitar una atención mayor en cuanto a higiene dental.

Riesgos de una mala higiene

Los riesgos más evidentes de una mala higiene dental en los perros son los siguientes:

Cuando la acumulación de sarro no se trata, se puede producir una inflamación y retracción de las encías que puede descalzar el diente y provocar caídas.
Mal aliento (halitosis).
Sarro perros
Puede ir a más
Las bacterias de la placa pueden trasladarse a través del torrente circulatorio a órganos vitales como el corazón ocasionando problemas de endocarditis en las válvulas. Las bacterias pueden incluso acantonarse en huesos (La osteomielitis es la infección ósea, tanto cortical como medular) provocando mucho dolor y una artritis séptica).

¿Cómo se forma el sarro?

El sarro es la calcificación de la placa dental. Los restos de alimentos, junto con las bacterias presentes en la boca, van a formar la placa bacteriana o placa dental. Si la placa no se retira, al mezclarse con la saliva y los minerales presentes en ella, reaccionará formando una costra. La placa se calcifica y se forma el sarro.

El sarro, cuando se forma, es de color blanquecino pero a medida que pasa el tiempo se va poniendo amarillo y luego marrón.

Síntomas de una pobre higiene dental
La señal más obvia de una mala salud dental canina es el mal aliento.

Sin embargo, a veces no es tan fácil de detectar
Y hay perros que no se dejan abrir la boca por su dueño. Por ejemplo…

Recientemente nos trajeron a la clínica a un perro que parpadeaba de un ojo y decía su dueño que le picaba un lado de la cara. Tenía molestias y dificultad para comer, lo que había llevado a sus dueños a comprarle comida blanda (que suele ser un poco más cara y llevar más contenido en grasa) durante medio año. Después de una exploración oftalmológica, nos dimos cuenta de que el ojo tenía una úlcera en la córnea probablemente de rascarse . Además, el canto lateral del ojo estaba inflamado. Tenía lo que en humanos llamamos flemón pero como era un perro de pelo largo, no se le notaba a simple vista. Al abrirle la boca nos llamó la atención el ver una muela llena de sarro. Le realizamos una radiografía y encontramos una fístula que llegaba hasta la parte inferior del ojo.

Le tuvimos que extraer la muela. Tras esto, el ojo se curó completamente con unos colirios y una lentilla protectora de úlcera. Afortunadamente, la úlcera no profundizó y no perforó el ojo. Ahora el perro come perfectamente a pesar de haber perdido una muela.

¿Cómo mantener la higiene dental de tu perro?
Hay varias maneras de prevenir problemas derivados de la salud dental de tu perro.

Limpiezas de dientes en casa
Es recomendable limpiar los dientes de tu perro semanal o diariamente si se puede. Existe una gran variedad de productos que se pueden utilizar:

Pastas de dientes.
Cepillos de dientes o dedales para el dedo índice, que hacen más fácil la limpieza.
Colutorios para echar en agua de bebida o directamente sobre el diente en líquido o en spray.

En la Clínica Tus Veterinarios enseñamos a nuestros clientes a tomar el hábito de limpiar los dientes de sus perros desde que son cachorros. Esto responde a nuestro compromiso con la prevención de enfermedades caninas.

Hoy en día tenemos muchos clientes que limpian los dientes todos los días a su mascota, y como resultado, se ahorran el dinero de hacer limpiezas dentales profesionales y consiguen una mejor salud de su perro.

Limpiezas dentales profesionales de perros y gatos

Recomendamos hacer una limpieza dental especializada anualmente. La realizamos con un aparato de ultrasonidos que utiliza agua para quitar el sarro. Después, procedemos a pulir los dientes con un cepillo de alta velocidad y una pasta especial. Hacemos esto para proteger el esmalte.

La frecuencia de limpiezas dentales necesaria varía mucho entre razas. En general, las razas grandes tienen buena calidad de esmalte, por lo que no necesitan hacerlo tan a menudo e incluso pueden pasarse la vida sin requerir una limpieza. Sin embargo, razas pequeñas como el Yorkshire o el Maltés, deben hacérselas todos los años desde cachorros si se quiere conservar sus piezas dentales.

Otro factor fundamental es la calidad del pienso. Algunas marcas han diseñado croquetas que limpian la superficie del diente y de la muela al masticarse.

Ultrasonido para perros

¿Se necesita anestesia para las limpiezas dentales de perros y gatos?

La limpieza dental en perros no es una técnica que pueda practicarse sin anestesia general , aunque hay veces que los propietarios no quieren anestesiar y si tiene poco sarro y el perro es muy bueno se puede intentar…… , pero no se va a poder pulir ni acceder a todas la zona de la boca …. Además los limpiadores dentales van a irrigar agua y hay riesgo de aspiración a vías respiratorias si no se realiza una anestesia correcta con intubación traqueal . En resumen , sin anestesia no se va hacer una correcta limpieza dental.

Tampoco sirve la sedación ya que necesitamos que el animal esté totalmente quieto, y el veterinario tenga un acceso completo a todas sus piezas dentales y encías.

Alimentos para la limpieza dental

Hay que tener cierto cuidado a la hora de comprar determinados alimentos porque no todos son saludables. Algunos tienen demasiado contenido graso, que en exceso puede causar problemas cardiovasculares y obesidad.

Los mejores alimentos para los dientes son aquellos que están elaborados por empresas farmacéuticas y llevan componentes químicos con tratamientos específicos para el diente del perro. Esto implica no solo limpieza a través de la acción mecánica de morder sino también un tratamiento antibacteriano para prevenir el sarro.

Conclusión

Si eres como la mayoría de dueños, por falta de tiempo , es probable que no estés prestando la suficiente atención a la limpieza dental de tu perro. Por eso te animamos a que comiences a limpiar los dientes de tu perro y consideres atender a su higiene bucal con frecuencia.

Estas simples medidas pueden conllevar a que tu perro tenga una vida más larga y mucho más saludable.

Si te resulta imposible introducir un cepillo de dientes a tu perro en la boca, pásate con él por clínica Tus Veterinarios y te explicamos cómo hacerlo.

Necesitas hacer una limpieza dental profesional a tu mascota?
Llámanos al 622575274 o contacta con nosotros

¿Cada cuánto tiempo tengo que hacerle una limpieza dental a mi perro?

Riesgos de una mala higiene

¿Cómo se forma el sarro?

Limpiezas dentales profesionales de perros y gatos

Ultrasonido para perros

Alimentos para la limpieza dental

Conclusión

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