From 1c48b5a62f73234ed26bb20f0ab345ab61cda0ab Mon Sep 17 00:00:00 2001 From: Stephen Gallagher Date: Thu, 18 Feb 2010 07:49:04 -0500 Subject: Rename server/ directory to src/ Also update BUILD.txt --- server/responder/common/responder_packet.c | 253 ----------------------------- 1 file changed, 253 deletions(-) delete mode 100644 server/responder/common/responder_packet.c (limited to 'server/responder/common/responder_packet.c') diff --git a/server/responder/common/responder_packet.c b/server/responder/common/responder_packet.c deleted file mode 100644 index 6e581a3c9..000000000 --- a/server/responder/common/responder_packet.c +++ /dev/null @@ -1,253 +0,0 @@ -/* - SSSD - - SSS Client Responder, command parser - - Copyright (C) Simo Sorce 2008 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see . -*/ - -#include -#include -#include -#include -#include "talloc.h" -#include "util/util.h" -#include "responder/common/responder_packet.h" - -#define SSSSRV_PACKET_MEM_SIZE 512 - -struct sss_packet { - size_t memsize; - uint8_t *buffer; - - /* header */ - uint32_t *len; - uint32_t *cmd; - uint32_t *status; - uint32_t *reserved; - - uint8_t *body; - - /* io pointer */ - size_t iop; -}; - -/* - * Allocate a new packet structure - * - * - if size is defined use it otherwise the default packet will be - * SSSSRV_PACKET_MEM_SIZE bytes. - */ -int sss_packet_new(TALLOC_CTX *mem_ctx, size_t size, - enum sss_cli_command cmd, - struct sss_packet **rpacket) -{ - struct sss_packet *packet; - - packet = talloc(mem_ctx, struct sss_packet); - if (!packet) return ENOMEM; - - if (size) { - int n = (size + SSS_NSS_HEADER_SIZE) % SSSSRV_PACKET_MEM_SIZE; - packet->memsize = (n + 1) * SSSSRV_PACKET_MEM_SIZE; - } else { - packet->memsize = SSSSRV_PACKET_MEM_SIZE; - } - - packet->buffer = talloc_size(packet, packet->memsize); - if (!packet->buffer) { - talloc_free(packet); - return ENOMEM; - } - memset(packet->buffer, 0, SSS_NSS_HEADER_SIZE); - - packet->len = &((uint32_t *)packet->buffer)[0]; - packet->cmd = &((uint32_t *)packet->buffer)[1]; - packet->status = &((uint32_t *)packet->buffer)[2]; - packet->reserved = &((uint32_t *)packet->buffer)[3]; - packet->body = (uint8_t *)&((uint32_t *)packet->buffer)[4]; - - *(packet->len) = size + SSS_NSS_HEADER_SIZE; - *(packet->cmd) = cmd; - - packet->iop = 0; - - *rpacket = packet; - - return EOK; -} - -/* grows a packet size only in SSSSRV_PACKET_MEM_SIZE chunks */ -int sss_packet_grow(struct sss_packet *packet, size_t size) -{ - size_t totlen, len; - uint8_t *newmem; - - if (size == 0) { - return EOK; - } - - totlen = packet->memsize; - len = *packet->len + size; - - /* make sure we do not overflow */ - if (totlen < len) { - int n = len % SSSSRV_PACKET_MEM_SIZE + 1; - totlen += n * SSSSRV_PACKET_MEM_SIZE; - if (totlen < len) { - return EINVAL; - } - } - - if (totlen > packet->memsize) { - newmem = talloc_realloc_size(packet, packet->buffer, totlen); - if (!newmem) { - return ENOMEM; - } - - packet->memsize = totlen; - - /* re-set pointers if realloc had to move memory */ - if (newmem != packet->buffer) { - packet->buffer = newmem; - packet->len = &((uint32_t *)packet->buffer)[0]; - packet->cmd = &((uint32_t *)packet->buffer)[1]; - packet->status = &((uint32_t *)packet->buffer)[2]; - packet->reserved = &((uint32_t *)packet->buffer)[3]; - packet->body = (uint8_t *)&((uint32_t *)packet->buffer)[4]; - } - } - - *(packet->len) += size; - - return 0; -} - -/* reclaim backet previously resrved space in the packet - * usually done in functione recovering from not fatal erros */ -int sss_packet_shrink(struct sss_packet *packet, size_t size) -{ - size_t newlen; - - if (size > *(packet->len)) return EINVAL; - - newlen = *(packet->len) - size; - if (newlen < SSS_NSS_HEADER_SIZE) return EINVAL; - - *(packet->len) = newlen; - return 0; -} - -int sss_packet_set_size(struct sss_packet *packet, size_t size) -{ - size_t newlen; - - newlen = SSS_NSS_HEADER_SIZE + size; - - /* make sure we do not overflow */ - if (packet->memsize < newlen) return EINVAL; - - *(packet->len) = newlen; - - return 0; -} - -int sss_packet_recv(struct sss_packet *packet, int fd) -{ - size_t rb; - size_t len; - void *buf; - - buf = packet->buffer + packet->iop; - if (packet->iop > 4) len = *packet->len - packet->iop; - else len = packet->memsize - packet->iop; - - /* check for wrapping */ - if (len > packet->memsize) { - return EINVAL; - } - - errno = 0; - rb = recv(fd, buf, len, 0); - - if (rb == -1 && errno == EAGAIN) { - return EAGAIN; - } - - if (rb == 0) { - return ENODATA; - } - - if (*packet->len > packet->memsize) { - return EINVAL; - } - - packet->iop += rb; - if (packet->iop < 4) { - return EAGAIN; - } - - if (packet->iop < *packet->len) { - return EAGAIN; - } - - return EOK; -} - -int sss_packet_send(struct sss_packet *packet, int fd) -{ - size_t rb; - size_t len; - void *buf; - - buf = packet->buffer + packet->iop; - len = *packet->len - packet->iop; - - errno = 0; - rb = send(fd, buf, len, 0); - - if (rb == -1 && errno == EAGAIN) { - return EAGAIN; - } - - if (rb == 0) { - return EIO; - } - - packet->iop += rb; - - if (packet->iop < *packet->len) { - return EAGAIN; - } - - return EOK; -} - -enum sss_cli_command sss_packet_get_cmd(struct sss_packet *packet) -{ - return (enum sss_cli_command)(*packet->cmd); -} - -void sss_packet_get_body(struct sss_packet *packet, uint8_t **body, size_t *blen) -{ - *body = packet->body; - *blen = *packet->len - SSS_NSS_HEADER_SIZE; -} - -void sss_packet_set_error(struct sss_packet *packet, int error) -{ - *(packet->status) = error; -} -- cgit