/* * Copyright (C) 2014, Red Hat Inc, Arnaldo Carvalho de Melo * * Released under the GPL v2. (and only v2, not any later version) */ #include "array.h" #include #include #include #include #include void fdarray__init(struct fdarray *fda, int nr_autogrow) { fda->entries = NULL; fda->priv = NULL; fda->nr = fda->nr_alloc = 0; fda->nr_autogrow = nr_autogrow; } int fdarray__grow(struct fdarray *fda, int nr) { void *priv; int nr_alloc = fda->nr_alloc + nr; size_t psize = sizeof(fda->priv[0]) * nr_alloc; size_t size = sizeof(struct pollfd) * nr_alloc; struct pollfd *entries = realloc(fda->entries, size); if (entries == NULL) return -ENOMEM; priv = realloc(fda->priv, psize); if (priv == NULL) { free(entries); return -ENOMEM; } fda->nr_alloc = nr_alloc; fda->entries = entries; fda->priv = priv; return 0; } struct fdarray *fdarray__new(int nr_alloc, int nr_autogrow) { struct fdarray *fda = calloc(1, sizeof(*fda)); if (fda != NULL) { if (fdarray__grow(fda, nr_alloc)) { free(fda); fda = NULL; } else { fda->nr_autogrow = nr_autogrow; } } return fda; } void fdarray__exit(struct fdarray *fda) { free(fda->entries); free(fda->priv); fdarray__init(fda, 0); } void fdarray__delete(struct fdarray *fda) { fdarray__exit(fda); free(fda); } int fdarray__add(struct fdarray *fda, int fd, short revents) { int pos = fda->nr; if (fda->nr == fda->nr_alloc && fdarray__grow(fda, fda->nr_autogrow) < 0) return -ENOMEM; fda->entries[fda->nr].fd = fd; fda->entries[fda->nr].events = revents; fda->nr++; return pos; } int fdarray__filter(struct fdarray *fda, short revents, void (*entry_destructor)(struct fdarray *fda, int fd, void *arg), void *arg) { int fd, nr = 0; if (fda->nr == 0) return 0; for (fd = 0; fd < fda->nr; ++fd) { if (fda->entries[fd].revents & revents) { if (entry_destructor) entry_destructor(fda, fd, arg); continue; } if (fd != nr) { fda->entries[nr] = fda->entries[fd]; fda->priv[nr] = fda->priv[fd]; } ++nr; } return fda->nr = nr; } int fdarray__poll(struct fdarray *fda, int timeout) { return poll(fda->entries, fda->nr, timeout); } int fdarray__fprintf(struct fdarray *fda, FILE *fp) { int fd, printed = fprintf(fp, "%d [ ", fda->nr); for (fd = 0; fd < fda->nr; ++fd) printed += fprintf(fp, "%s%d", fd ? ", " : "", fda->entries[fd].fd); return printed + fprintf(fp, " ]"); }

path: root/net/packet/internal.h

diff options

author	Ard Biesheuvel <ard.biesheuvel@linaro.org>	2017-01-17 13:46:29 +0000
committer	Herbert Xu <herbert@gondor.apana.org.au>	2017-01-23 22:41:33 +0800
commit	11e3b725cfc282efe9d4a354153e99d86a16af08 (patch)
tree	8b5b9e0e1bcae1ab98ee652ffb7b13b05c209bd6 /net/packet/internal.h
parent	d6040764adcb5cb6de1489422411d701c158bb69 (diff)

crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes

Update the ARMv8 Crypto Extensions and the plain NEON AES implementations in CBC and CTR modes to return the next IV back to the skcipher API client. This is necessary for chaining to work correctly. Note that for CTR, this is only done if the request is a round multiple of the block size, since otherwise, chaining is impossible anyway. Cc: <stable@vger.kernel.org> # v3.16+ Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Diffstat (limited to 'net/packet/internal.h')


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