#include "ubifs.h" static int ubifs_crypt_get_context(struct inode *inode, void *ctx, size_t len) { return ubifs_xattr_get(inode, UBIFS_XATTR_NAME_ENCRYPTION_CONTEXT, ctx, len); } static int ubifs_crypt_set_context(struct inode *inode, const void *ctx, size_t len, void *fs_data) { return ubifs_xattr_set(inode, UBIFS_XATTR_NAME_ENCRYPTION_CONTEXT, ctx, len, 0); } static bool ubifs_crypt_empty_dir(struct inode *inode) { return ubifs_check_dir_empty(inode) == 0; } static unsigned int ubifs_crypt_max_namelen(struct inode *inode) { if (S_ISLNK(inode->i_mode)) return UBIFS_MAX_INO_DATA; else return UBIFS_MAX_NLEN; } static int ubifs_key_prefix(struct inode *inode, u8 **key) { static char prefix[] = "ubifs:"; *key = prefix; return sizeof(prefix) - 1; } int ubifs_encrypt(const struct inode *inode, struct ubifs_data_node *dn, unsigned int in_len, unsigned int *out_len, int block) { struct ubifs_info *c = inode->i_sb->s_fs_info; void *p = &dn->data; struct page *ret; unsigned int pad_len = round_up(in_len, UBIFS_CIPHER_BLOCK_SIZE); ubifs_assert(pad_len <= *out_len); dn->compr_size = cpu_to_le16(in_len); /* pad to full block cipher length */ if (pad_len != in_len) memset(p + in_len, 0, pad_len - in_len); ret = fscrypt_encrypt_page(inode, virt_to_page(&dn->data), pad_len, offset_in_page(&dn->data), block, GFP_NOFS); if (IS_ERR(ret)) { ubifs_err(c, "fscrypt_encrypt_page failed: %ld", PTR_ERR(ret)); return PTR_ERR(ret); } *out_len = pad_len; return 0; } int ubifs_decrypt(const struct inode *inode, struct ubifs_data_node *dn, unsigned int *out_len, int block) { struct ubifs_info *c = inode->i_sb->s_fs_info; int err; unsigned int clen = le16_to_cpu(dn->compr_size); unsigned int dlen = *out_len; if (clen <= 0 || clen > UBIFS_BLOCK_SIZE || clen > dlen) { ubifs_err(c, "bad compr_size: %i", clen); return -EINVAL; } ubifs_assert(dlen <= UBIFS_BLOCK_SIZE); err = fscrypt_decrypt_page(inode, virt_to_page(&dn->data), dlen, offset_in_page(&dn->data), block); if (err) { ubifs_err(c, "fscrypt_decrypt_page failed: %i", err); return err; } *out_len = clen; return 0; } struct fscrypt_operations ubifs_crypt_operations = { .flags = FS_CFLG_OWN_PAGES, .get_context = ubifs_crypt_get_context, .set_context = ubifs_crypt_set_context, .is_encrypted = __ubifs_crypt_is_encrypted, .empty_dir = ubifs_crypt_empty_dir, .max_namelen = ubifs_crypt_max_namelen, .key_prefix = ubifs_key_prefix, }; rs/usb'>usb/serial/ir-usb.c
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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-12 21:58:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-12 21:58:13 -0800
commite7aa8c2eb11ba69b1b69099c3c7bd6be3087b0ba (patch)
treef63906f41699c8e38af9d12b063e2ceab0286ef2 /drivers/usb/serial/ir-usb.c
parente34bac726d27056081d0250c0e173e4b155aa340 (diff)
parent868c97a846a73e937d835b09b8c885a69df50ec8 (diff)
Merge tag 'docs-4.10' of git://git.lwn.net/linuxHEADmaster
Pull documentation update from Jonathan Corbet: "These are the documentation changes for 4.10. It's another busy cycle for the docs tree, as the sphinx conversion continues. Highlights include: - Further work on PDF output, which remains a bit of a pain but should be more solid now. - Five more DocBook template files converted to Sphinx. Only 27 to go... Lots of plain-text files have also been converted and integrated. - Images in binary formats have been replaced with more source-friendly versions. - Various bits of organizational work, including the renaming of various files discussed at the kernel summit. - New documentation for the device_link mechanism. ... and, of course, lots of typo fixes and small updates" * tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits) dma-buf: Extract dma-buf.rst Update Documentation/00-INDEX docs: 00-INDEX: document directories/files with no docs docs: 00-INDEX: remove non-existing entries docs: 00-INDEX: add missing entries for documentation files/dirs docs: 00-INDEX: consolidate process/ and admin-guide/ description scripts: add a script to check if Documentation/00-INDEX is sane Docs: change sh -> awk in REPORTING-BUGS Documentation/core-api/device_link: Add initial documentation core-api: remove an unexpected unident ppc/idle: Add documentation for powersave=off Doc: Correct typo, "Introdution" => "Introduction" Documentation/atomic_ops.txt: convert to ReST markup Documentation/local_ops.txt: convert to ReST markup Documentation/assoc_array.txt: convert to ReST markup docs-rst: parse-headers.pl: cleanup the documentation docs-rst: fix media cleandocs target docs-rst: media/Makefile: reorganize the rules docs-rst: media: build SVG from graphviz files docs-rst: replace bayer.png by a SVG image ...
Diffstat (limited to 'drivers/usb/serial/ir-usb.c')