diff options
| -rw-r--r-- | include/ouroboros/dif_config.h | 68 | ||||
| -rw-r--r-- | include/ouroboros/irm_config.h | 5 | ||||
| -rw-r--r-- | include/ouroboros/shm_rdrbuff.h | 15 | ||||
| -rw-r--r-- | src/ipcpd/ipcp.c | 12 | ||||
| -rw-r--r-- | src/ipcpd/normal/CMakeLists.txt | 6 | ||||
| -rw-r--r-- | src/ipcpd/normal/crc32.c | 83 | ||||
| -rw-r--r-- | src/ipcpd/normal/crc32.h | 30 | ||||
| -rw-r--r-- | src/ipcpd/normal/dt_const.h | 13 | ||||
| -rw-r--r-- | src/ipcpd/normal/frct.c | 8 | ||||
| -rw-r--r-- | src/ipcpd/normal/frct.h | 29 | ||||
| -rw-r--r-- | src/ipcpd/normal/ribmgr.c | 12 | ||||
| -rw-r--r-- | src/ipcpd/normal/shm_pci.c | 234 | ||||
| -rw-r--r-- | src/ipcpd/normal/shm_pci.h | 26 | ||||
| -rw-r--r-- | src/ipcpd/normal/static_info.proto | 4 | ||||
| -rw-r--r-- | src/lib/dif_config.proto | 4 | ||||
| -rw-r--r-- | src/lib/irm.c | 8 | ||||
| -rw-r--r-- | src/lib/shm_rdrbuff.c | 117 | ||||
| -rw-r--r-- | src/tools/irm/irm_ipcp_bootstrap.c | 25 |
18 files changed, 382 insertions, 317 deletions
diff --git a/include/ouroboros/dif_config.h b/include/ouroboros/dif_config.h deleted file mode 100644 index 2e354e8c..00000000 --- a/include/ouroboros/dif_config.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * Ouroboros - Copyright (C) 2016 - * - * DIF configurations for each IPCP type - * - * Sander Vrijders <sander.vrijders@intec.ugent.be> - * - * 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 2 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, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <stdint.h> -#include <unistd.h> - -#ifndef OUROBOROS_DIF_CONFIG_H -#define OUROBOROS_DIF_CONFIG_H - -enum ipcp_type { - IPCP_LOCAL = 0, - IPCP_NORMAL, - IPCP_SHIM_UDP, - IPCP_SHIM_ETH_LLC -}; - -struct dif_config { - char * dif_name; - enum ipcp_type type; - - union { - /* Normal DIF */ - struct { - uint8_t addr_size; - uint8_t cep_id_size; - uint8_t pdu_length_size; - uint8_t seqno_size; - - /* DUP constants */ - uint8_t ttl_size; - uint8_t chk_size; - - uint32_t min_pdu_size; - uint32_t max_pdu_size; - }; - /* Shim UDP */ - struct { - uint32_t ip_addr; - uint32_t dns_addr; - }; - /* Shim Ethernet LLC */ - struct { - char * if_name; - }; - }; -}; - - -#endif /* OUROBOROS_DIF_CONFIG_H */ diff --git a/include/ouroboros/irm_config.h b/include/ouroboros/irm_config.h index d5f2b565..ba58f2f7 100644 --- a/include/ouroboros/irm_config.h +++ b/include/ouroboros/irm_config.h @@ -22,6 +22,7 @@ #include <stdint.h> #include <unistd.h> +#include <stdbool.h> #ifndef OUROBOROS_IRM_CONFIG_H #define OUROBOROS_IRM_CONFIG_H @@ -52,8 +53,8 @@ struct dif_config { uint8_t seqno_size; /* DUP constants */ - uint8_t ttl_size; - uint8_t chk_size; + bool has_ttl; + bool has_chk; uint32_t min_pdu_size; uint32_t max_pdu_size; diff --git a/include/ouroboros/shm_rdrbuff.h b/include/ouroboros/shm_rdrbuff.h index 6cdaa7bf..7a7049e3 100644 --- a/include/ouroboros/shm_rdrbuff.h +++ b/include/ouroboros/shm_rdrbuff.h @@ -65,20 +65,19 @@ int shm_rdrbuff_read(uint8_t ** dst, int shm_rdrbuff_remove(struct shm_rdrbuff * rdrb, ssize_t idx); +uint8_t * shm_du_buff_head(struct shm_du_buff * sdb); -uint8_t * shm_du_buff_head_alloc(struct shm_rdrbuff * rdrb, - ssize_t idx, +uint8_t * shm_du_buff_tail(struct shm_du_buff * sdb); + +uint8_t * shm_du_buff_head_alloc(struct shm_du_buff * sdb, size_t size); -uint8_t * shm_du_buff_tail_alloc(struct shm_rdrbuff * rdrb, - ssize_t idx, +uint8_t * shm_du_buff_tail_alloc(struct shm_du_buff * sdb, size_t size); -int shm_du_buff_head_release(struct shm_rdrbuff * rdrb, - ssize_t idx, +int shm_du_buff_head_release(struct shm_du_buff * sdb, size_t size); -int shm_du_buff_tail_release(struct shm_rdrbuff * rdrb, - ssize_t idx, +int shm_du_buff_tail_release(struct shm_du_buff * sdb, size_t size); #endif /* OUROBOROS_SHM_RDRBUFF_H */ diff --git a/src/ipcpd/ipcp.c b/src/ipcpd/ipcp.c index 12111a51..ec5ab927 100644 --- a/src/ipcpd/ipcp.c +++ b/src/ipcpd/ipcp.c @@ -252,12 +252,12 @@ void * ipcp_main_loop(void * o) conf.cep_id_size = conf_msg->cep_id_size; conf.pdu_length_size = conf_msg->pdu_length_size; - conf.qos_id_size = conf_msg->qos_id_size; - conf.seqno_size = conf_msg->seqno_size; - conf.ttl_size = conf_msg->seqno_size; - conf.chk_size = conf_msg->chk_size; - conf.min_pdu_size = conf_msg->min_pdu_size; - conf.max_pdu_size = conf_msg->max_pdu_size; + conf.qos_id_size = conf_msg->qos_id_size; + conf.seqno_size = conf_msg->seqno_size; + conf.has_ttl = conf_msg->has_ttl; + conf.has_chk = conf_msg->has_chk; + conf.min_pdu_size = conf_msg->min_pdu_size; + conf.max_pdu_size = conf_msg->max_pdu_size; } if (conf_msg->ipcp_type == IPCP_SHIM_UDP) { conf.ip_addr = conf_msg->ip_addr; diff --git a/src/ipcpd/normal/CMakeLists.txt b/src/ipcpd/normal/CMakeLists.txt index 68dca4b3..654bb127 100644 --- a/src/ipcpd/normal/CMakeLists.txt +++ b/src/ipcpd/normal/CMakeLists.txt @@ -22,12 +22,14 @@ protobuf_generate_c(FLOW_ALLOC_SRCS FLOW_ALLOC_HDRS set(SOURCE_FILES # Add source files here - main.c + cdap_request.c + crc32.c fmgr.c frct.c - cdap_request.c + main.c ribmgr.c rmt.c + shm_pci.c ) add_executable (ipcpd-normal ${SOURCE_FILES} ${IPCP_SOURCES} diff --git a/src/ipcpd/normal/crc32.c b/src/ipcpd/normal/crc32.c new file mode 100644 index 00000000..ad3e2b35 --- /dev/null +++ b/src/ipcpd/normal/crc32.c @@ -0,0 +1,83 @@ +/* + * Ouroboros - Copyright (C) 2016 + * + * 32-bit Cyclic Redundancy Check + * + * Sander Vrijders <sander.vrijders@intec.ugent.be> + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <stddef.h> + +#include "crc32.h" + +static const uint32_t crc32_table[256] = { + 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, + 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, + 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, + 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, + 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, + 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, + 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, + 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, + 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, + 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, + 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, + 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, + 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, + 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, + 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, + 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, + 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, + 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, + 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, + 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, + 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, + 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, + 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, + 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, + 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, + 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, + 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, + 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, + 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, + 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, + 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, + 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, + 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, + 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, + 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d +}; + +void crc32(uint32_t * crc, const uint8_t * buf, size_t len) +{ + size_t n; + + *crc = *crc ^ 0xffffffff; + + for (n = 0; n < len; n++) + *crc = crc32_table[(*crc ^ buf[n]) & 0xff] ^ (*crc >> 8); + + *crc = *crc ^ 0xffffffff; +} diff --git a/src/ipcpd/normal/crc32.h b/src/ipcpd/normal/crc32.h new file mode 100644 index 00000000..f22bbc19 --- /dev/null +++ b/src/ipcpd/normal/crc32.h @@ -0,0 +1,30 @@ +/* + * Ouroboros - Copyright (C) 2016 + * + * 32-bit Cyclic Redundancy Check + * + * Sander Vrijders <sander.vrijders@intec.ugent.be> + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef OUROBOROS_IPCP_CRC32_H +#define OUROBOROS_IPCP_CRC32_H + +#include <stdint.h> + +void crc32(uint32_t * crc, const uint8_t * buf, size_t len); + +#endif /* OUROBOROS_IPCP_CRC32_H */ diff --git a/src/ipcpd/normal/dt_const.h b/src/ipcpd/normal/dt_const.h index b33f16c5..eda66838 100644 --- a/src/ipcpd/normal/dt_const.h +++ b/src/ipcpd/normal/dt_const.h @@ -25,14 +25,15 @@ #define IPCP_DT_CONST_H #include <stdint.h> +#include <stdbool.h> struct dt_const { - uint8_t addr_size; - uint8_t cep_id_size; - uint8_t pdu_length_size; - uint8_t seqno_size; - uint8_t ttl_size; - uint8_t chk_size; + uint8_t addr_size; + uint8_t cep_id_size; + uint8_t pdu_length_size; + uint8_t seqno_size; + bool has_ttl; + bool has_chk; uint32_t min_pdu_size; uint32_t max_pdu_size; }; diff --git a/src/ipcpd/normal/frct.c b/src/ipcpd/normal/frct.c index 7c2eba61..417815b7 100644 --- a/src/ipcpd/normal/frct.c +++ b/src/ipcpd/normal/frct.c @@ -126,6 +126,14 @@ int frct_fini() return 0; } +struct dt_const * frct_dt_const() +{ + if (frct == NULL) + return NULL; + + return frct->dtc; +} + int frct_dt_flow(int fd, enum qos_cube qos) { diff --git a/src/ipcpd/normal/frct.h b/src/ipcpd/normal/frct.h index 91b2dfc7..09873445 100644 --- a/src/ipcpd/normal/frct.h +++ b/src/ipcpd/normal/frct.h @@ -30,26 +30,29 @@ struct frct_i; -int frct_init(struct dt_const * dtc, - uint32_t address); -int frct_fini(); +int frct_init(struct dt_const * dtc, + uint32_t address); +int frct_fini(); + +struct dt_const * frct_dt_const(); + +int frct_dt_flow(int fd, + enum qos_cube qos); -int frct_dt_flow(int fd, - enum qos_cube qos); /* * FIXME: Will take the index in the DU map, * possibly cep-ids and address */ -int frct_rmt_post(); +int frct_rmt_post(); -struct frct_i * frct_i_create(uint32_t address, - buffer_t * buf, - enum qos_cube cube); +struct frct_i * frct_i_create(uint32_t address, + buffer_t * buf, + enum qos_cube cube); /* FIXME: Hand QoS cube here too? We received it in the flow alloc message. */ -int frct_i_accept(struct frct_i * instance, - buffer_t * buf); -int frct_i_destroy(struct frct_i * instance, - buffer_t * buf); +int frct_i_accept(struct frct_i * instance, + buffer_t * buf); +int frct_i_destroy(struct frct_i * instance, + buffer_t * buf); /* FIXME: Add read/write ops for frct instances */ diff --git a/src/ipcpd/normal/ribmgr.c b/src/ipcpd/normal/ribmgr.c index 007361fd..9733abc9 100644 --- a/src/ipcpd/normal/ribmgr.c +++ b/src/ipcpd/normal/ribmgr.c @@ -241,8 +241,8 @@ int ribmgr_cdap_write(struct cdap * instance, rib->dtc.cep_id_size = msg->cep_id_size; rib->dtc.pdu_length_size = msg->pdu_length_size; rib->dtc.seqno_size = msg->seqno_size; - rib->dtc.ttl_size = msg->ttl_size; - rib->dtc.chk_size = msg->chk_size; + rib->dtc.has_ttl = msg->has_ttl; + rib->dtc.has_chk = msg->has_chk; rib->dtc.min_pdu_size = msg->min_pdu_size; rib->dtc.max_pdu_size = msg->max_pdu_size; @@ -318,8 +318,8 @@ int ribmgr_cdap_start(struct cdap * instance, stat_info.cep_id_size = rib->dtc.cep_id_size; stat_info.pdu_length_size = rib->dtc.pdu_length_size; stat_info.seqno_size = rib->dtc.seqno_size; - stat_info.ttl_size = rib->dtc.ttl_size; - stat_info.chk_size = rib->dtc.chk_size; + stat_info.has_ttl = rib->dtc.has_ttl; + stat_info.has_chk = rib->dtc.has_chk; stat_info.min_pdu_size = rib->dtc.min_pdu_size; stat_info.max_pdu_size = rib->dtc.max_pdu_size; @@ -529,8 +529,8 @@ int ribmgr_bootstrap(struct dif_config * conf) rib->dtc.cep_id_size = conf->cep_id_size; rib->dtc.pdu_length_size = conf->pdu_length_size; rib->dtc.seqno_size = conf->seqno_size; - rib->dtc.ttl_size = conf->ttl_size; - rib->dtc.chk_size = conf->chk_size; + rib->dtc.has_ttl = conf->has_ttl; + rib->dtc.has_chk = conf->has_chk; rib->dtc.min_pdu_size = conf->min_pdu_size; rib->dtc.max_pdu_size = conf->max_pdu_size; diff --git a/src/ipcpd/normal/shm_pci.c b/src/ipcpd/normal/shm_pci.c index 144bd15e..94629790 100644 --- a/src/ipcpd/normal/shm_pci.c +++ b/src/ipcpd/normal/shm_pci.c @@ -21,127 +21,183 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include <ourboros/errno.h> - -#include "shm_pci.h" -#include <stdlib.h> - -#define SHM_PCI_HEAD_SIZE(a, b) a.addr_size * 2 + \ - a.cep_id_size * 2 + \ - a.pdu_length_size + \ - b.ttl_size + \ - a.seqno_size + \ - a.qos_id_size -#define SHM_PCI_TAIL_SIZE(b) b.chk_size - #define OUROBOROS_PREFIX "ipcpd/shm_pci" #include <ouroboros/logs.h> +#include <ouroboros/errno.h> -struct shm_pci { - /* head */ - uint8_t * dst_addr; - uint8_t * src_addr; - uint8_t * dst_cep_id; - uint8_t * src_cep_id; - uint8_t * pdu_length; - uint8_t * ttl; - uint8_t * seqno; - uint8_t * qos_id; +#include <stdlib.h> +#include <string.h> - uint8_t * chk; +#include "shm_pci.h" +#include "frct.h" +#include "crc32.h" - struct shm_du_buff * dub; +#define QOS_ID_SIZE 1 +#define DEFAULT_TTL 60 +#define TTL_SIZE 1 +#define CHK_SIZE 4 - struct ipcp_dtp_const dtpc; - struct ipcp_dup_const dupc; +static int shm_pci_head_size(struct dt_const * dtc) +{ + int len = 0; -}; + len = dtc->addr_size * 2 + dtc->cep_id_size * 2 + + dtc->pdu_length_size + dtc->seqno_size + + QOS_ID_SIZE; -shm_pci_t * shm_pci_create(struct shm_du_buff * dub, - const struct ipcp_dtp_const * dtpc, - const struct ipcp_dup_const * dupc) + if (dtc->has_ttl) + len += TTL_SIZE; + + return len; +} + +static int shm_pci_tail_size(struct dt_const * dtc) { - struct shm_pci * p; + return dtc->has_chk ? CHK_SIZE : 0; +} - if (dub == NULL) { - LOG_DBGF("Bogus input. Bugging out."); - return NULL; +int shm_pci_ser(struct shm_du_buff * sdb, + struct pci * pci) +{ + uint8_t * head; + uint8_t * tail; + int offset = 0; + struct dt_const * dtc; + uint8_t ttl = DEFAULT_TTL; + + dtc = frct_dt_const(); + if (dtc == NULL) + return -1; + + head = shm_du_buff_head_alloc(sdb, shm_pci_head_size(dtc)); + if (head == NULL) + return -1; + + memcpy(head, &pci->dst_addr, dtc->addr_size); + offset += dtc->addr_size; + memcpy(head + offset, &pci->src_addr, dtc->addr_size); + offset += dtc->addr_size; + memcpy(head + offset, &pci->dst_cep_id, dtc->cep_id_size); + offset += dtc->cep_id_size; + memcpy(head + offset, &pci->src_cep_id, dtc->cep_id_size); + offset += dtc->cep_id_size; + memcpy(head + offset, &pci->pdu_length, dtc->pdu_length_size); + offset += dtc->pdu_length_size; + memcpy(head + offset, &pci->seqno, dtc->seqno_size); + offset += dtc->seqno_size; + memcpy(head + offset, &pci->qos_id, QOS_ID_SIZE); + offset += QOS_ID_SIZE; + if (dtc->has_ttl) + memcpy(head + offset, &ttl, TTL_SIZE); + + if (dtc->has_chk) { + tail = shm_du_buff_tail_alloc(sdb, shm_pci_tail_size(dtc)); + if (tail == NULL) { + shm_du_buff_head_release(sdb, shm_pci_tail_size(dtc)); + return -1; + } + + crc32((uint32_t *) tail, head, tail - head); } - p = malloc(sizeof *p); + return 0; +} - if (p == NULL) - return NULL; +struct pci * shm_pci_des(struct shm_du_buff * sdb) +{ + uint8_t * head; + struct pci * pci; + int offset = 0; + struct dt_const * dtc; - p->dub = dub; + head = shm_du_buff_head(sdb); + if (head == NULL) + return NULL; - p->dtpc = *dtpc; - p->dupc = *dupc; + dtc = frct_dt_const(); + if (dtc == NULL) + return NULL; - p->dst_addr = NULL; - p->src_addr = NULL; - p->dst_cep_id = NULL; - p->src_cep_id = NULL; - p->pdu_length = NULL; - p->ttl = NULL; - p->seqno = NULL; - p->qos_id = NULL; - p->chk = NULL; + pci = malloc(sizeof(*pci)); + if (pci == NULL) + return NULL; - return p; + memcpy(&pci->dst_addr, head, dtc->addr_size); + offset += dtc->addr_size; + memcpy(&pci->src_addr, head + offset, dtc->addr_size); + offset += dtc->addr_size; + memcpy(&pci->dst_cep_id, head + offset, dtc->cep_id_size); + offset += dtc->cep_id_size; + memcpy(&pci->src_cep_id, head + offset, dtc->cep_id_size); + offset += dtc->cep_id_size; + memcpy(&pci->pdu_length, head + offset, dtc->pdu_length_size); + offset += dtc->pdu_length_size; + memcpy(&pci->seqno, head + offset, dtc->seqno_size); + offset += dtc->seqno_size; + memcpy(&pci->qos_id, head + offset, QOS_ID_SIZE); + offset += QOS_ID_SIZE; + if (dtc->has_ttl) + memcpy(&pci->ttl, head + offset, TTL_SIZE); + + return pci; } -void shm_pci_destroy(shm_pci_t * pci) +int shm_pci_shrink(struct shm_du_buff * sdb) { - free(pci); -} + struct dt_const * dtc; -int shm_pci_init(shm_pci_t * pci) -{ - if (pci == NULL) { - LOG_DBGF("Bogus input. Bugging out."); - return -EINVAL; - } + if (sdb == NULL) + return -1; - uint8_t * pci_head = shm_du_buff_head_alloc( - pci->dub, SHM_PCI_HEAD_SIZE(pci->dtpc, pci->dupc)); - uint8_t * pci_tail = shm_du_buff_tail_alloc( - pci->dub, SHM_PCI_TAIL_SIZE(pci->dupc)); + dtc = frct_dt_const(); + if (dtc == NULL) + return -1; - if (pci_head == NULL) { - LOG_DBG("Failed to allocate space for PCI at head."); - return -ENOBUFS; + if (shm_du_buff_head_release(sdb, shm_pci_head_size(dtc))) { + LOG_ERR("Failed to shrink head."); + return -1; } - if (pci_tail == NULL) { - LOG_DBG("Failed to allocate space for PCI at tail."); - return -ENOBUFS; + if (shm_du_buff_tail_release(sdb, shm_pci_tail_size(dtc))) { + LOG_ERR("Failed to shrink tail."); + return -1; } - pci->dst_addr = pci_head; - pci->src_addr = (pci_head += pci->dtpc.addr_size); - pci->dst_cep_id = (pci_head += pci->dtpc.addr_size); - pci->src_cep_id = (pci_head += pci->dtpc.cep_id_size); - pci->pdu_length = (pci_head += pci->dtpc.cep_id_size); - pci->ttl = (pci_head += pci->dtpc.pdu_length_size); - pci->seqno = (pci_head += pci->dupc.ttl_size); - pci->qos_id = (pci_head += pci->dtpc.seqno_size); - - pci->chk = (pci_tail); - return 0; } -void shm_pci_release(shm_pci_t * pci) +int shm_pci_dec_ttl(struct shm_du_buff * sdb) { - if (pci == NULL) - return; + struct dt_const * dtc; + int offset = 0; + uint8_t * head; + uint8_t * tail; - if (pci->dub == NULL) - return; + dtc = frct_dt_const(); + if (dtc == NULL) + return -1; - shm_du_buff_head_release(pci->dub, SHM_PCI_HEAD_SIZE(pci->dtpc, - pci->dupc)); - shm_du_buff_tail_release(pci->dub, SHM_PCI_TAIL_SIZE(pci->dupc)); + if (dtc->has_ttl == false) + return 0; + + offset = shm_pci_head_size(dtc) - 1; + + head = shm_du_buff_head(sdb); + if (head == NULL) + return -1; + + head[offset]--; + + if (dtc->has_chk) { + tail = shm_du_buff_tail(sdb); + if (tail == NULL) + return -1; + + tail -= CHK_SIZE; + + crc32((uint32_t *) tail, head, tail - head); + } + + return 0; } diff --git a/src/ipcpd/normal/shm_pci.h b/src/ipcpd/normal/shm_pci.h index cb8dd5dd..aa9770b4 100644 --- a/src/ipcpd/normal/shm_pci.h +++ b/src/ipcpd/normal/shm_pci.h @@ -24,20 +24,28 @@ #ifndef OUROBOROS_IPCP_SHM_PCI_H #define OUROBOROS_IPCP_SHM_PCI_H -#include <ouroboros/shm_du_map.h> +#include <ouroboros/shm_rdrbuff.h> #include <dt_const.h> -struct shm_pci; +struct pci { + uint64_t dst_addr; + uint64_t src_addr; + uint32_t dst_cep_id; + uint32_t src_cep_id; + uint32_t pdu_length; + uint64_t seqno; + uint8_t qos_id; + uint8_t ttl; +}; -typedef struct shm_pci shm_pci_t; +int shm_pci_ser(struct shm_du_buff * sdb, + struct pci * pci); -shm_pci_t * shm_pci_create(struct shm_du_buff * dub, - const struct ipcp_dtp_const * dtpc, - const struct ipcp_dup_const * dupc); -void shm_pci_destroy(shm_pci_t * pci); +struct pci * shm_pci_des(struct shm_du_buff * sdb); -int shm_pci_init(shm_pci_t * pci); -void shm_pci_release(shm_pci_t * pci); +int shm_pci_shrink(struct shm_du_buff * sdb); + +int shm_pci_dec_ttl(struct shm_du_buff * sdb); #endif /* OUROBOROS_IPCP_SHM_PCI_H */ diff --git a/src/ipcpd/normal/static_info.proto b/src/ipcpd/normal/static_info.proto index 24b7994a..04824a38 100644 --- a/src/ipcpd/normal/static_info.proto +++ b/src/ipcpd/normal/static_info.proto @@ -3,8 +3,8 @@ message static_info_msg { required uint32 cep_id_size = 2; required uint32 pdu_length_size = 3; required uint32 seqno_size = 4; - required uint32 ttl_size = 5; - required uint32 chk_size = 6; + required bool has_ttl = 5; + required bool has_chk = 6; required uint32 min_pdu_size = 7; required uint32 max_pdu_size = 8; required uint32 address = 9; diff --git a/src/lib/dif_config.proto b/src/lib/dif_config.proto index dbdf19e5..338634d1 100644 --- a/src/lib/dif_config.proto +++ b/src/lib/dif_config.proto @@ -7,8 +7,8 @@ message dif_config_msg { optional uint32 pdu_length_size = 5; optional uint32 qos_id_size = 6; optional uint32 seqno_size = 7; - optional uint32 ttl_size = 8; - optional uint32 chk_size = 9; + optional bool has_ttl = 8; + optional bool has_chk = 9; optional uint32 min_pdu_size = 10; optional uint32 max_pdu_size = 11; // Config for shim UDP diff --git a/src/lib/irm.c b/src/lib/irm.c index 64a4fa0f..fce11ba5 100644 --- a/src/lib/irm.c +++ b/src/lib/irm.c @@ -115,8 +115,8 @@ int irm_bootstrap_ipcp(pid_t api, config.has_pdu_length_size = true; config.has_qos_id_size = true; config.has_seqno_size = true; - config.has_ttl_size = true; - config.has_chk_size = true; + config.has_has_ttl = true; + config.has_has_chk = true; config.has_min_pdu_size = true; config.has_max_pdu_size = true; @@ -125,8 +125,8 @@ int irm_bootstrap_ipcp(pid_t api, config.pdu_length_size = conf->pdu_length_size; config.qos_id_size = conf->qos_id_size; config.seqno_size = conf->seqno_size; - config.ttl_size = conf->ttl_size; - config.chk_size = conf->chk_size; + config.has_ttl = conf->has_ttl; + config.has_chk = conf->has_chk; config.min_pdu_size = conf->min_pdu_size; config.max_pdu_size = conf->max_pdu_size; break; diff --git a/src/lib/shm_rdrbuff.c b/src/lib/shm_rdrbuff.c index 93a889ce..b0d295d9 100644 --- a/src/lib/shm_rdrbuff.c +++ b/src/lib/shm_rdrbuff.c @@ -690,32 +690,32 @@ int shm_rdrbuff_remove(struct shm_rdrbuff * rdrb, ssize_t idx) return 0; } -uint8_t * shm_du_buff_head_alloc(struct shm_rdrbuff * rdrb, - ssize_t idx, - size_t size) +uint8_t * shm_du_buff_head(struct shm_du_buff * sdb) { - struct shm_du_buff * sdb; - uint8_t * buf; - - if (rdrb == NULL) + if (sdb == NULL) return NULL; - if (idx < 0 || idx > SHM_BUFFER_SIZE) + return (uint8_t *) (sdb + 1) + sdb->du_head; +} + +uint8_t * shm_du_buff_tail(struct shm_du_buff * sdb) +{ + if (sdb == NULL) return NULL; -#ifdef __APPLE__ - pthread_mutex_lock(rdrb->lock); -#else - if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) { - LOG_DBGF("Recovering dead mutex."); - pthread_mutex_consistent(rdrb->lock); - } -#endif - sdb = idx_to_du_buff_ptr(rdrb, idx); + return (uint8_t *) (sdb + 1) + sdb->du_tail; +} + +uint8_t * shm_du_buff_head_alloc(struct shm_du_buff * sdb, + size_t size) +{ + uint8_t * buf = NULL; + + if (sdb == NULL) + return NULL; if ((long) (sdb->du_head - size) < 0) { - pthread_mutex_unlock(rdrb->lock); - LOG_DBGF("Failed to allocate PCI headspace."); + LOG_ERR("Failed to allocate PCI headspace."); return NULL; } @@ -723,37 +723,19 @@ uint8_t * shm_du_buff_head_alloc(struct shm_rdrbuff * rdrb, buf = (uint8_t *) (sdb + 1) + sdb->du_head; - pthread_mutex_unlock(rdrb->lock); - return buf; } -uint8_t * shm_du_buff_tail_alloc(struct shm_rdrbuff * rdrb, - ssize_t idx, +uint8_t * shm_du_buff_tail_alloc(struct shm_du_buff * sdb, size_t size) { - struct shm_du_buff * sdb; - uint8_t * buf; - - if (rdrb == NULL) - return NULL; + uint8_t * buf = NULL; - if (idx < 0 || idx > SHM_BUFFER_SIZE) + if (sdb == NULL) return NULL; -#ifdef __APPLE__ - pthread_mutex_lock(rdrb->lock); -#else - if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) { - LOG_DBGF("Recovering dead mutex."); - pthread_mutex_consistent(rdrb->lock); - } -#endif - sdb = idx_to_du_buff_ptr(rdrb, idx); - if (sdb->du_tail + size >= sdb->size) { - pthread_mutex_unlock(rdrb->lock); - LOG_DBGF("Failed to allocate PCI tailspace."); + LOG_ERR("Failed to allocate PCI tailspace."); return NULL; } @@ -761,78 +743,37 @@ uint8_t * shm_du_buff_tail_alloc(struct shm_rdrbuff * rdrb, sdb->du_tail += size; - pthread_mutex_unlock(rdrb->lock); - return buf; } -int shm_du_buff_head_release(struct shm_rdrbuff * rdrb, - ssize_t idx, +int shm_du_buff_head_release(struct shm_du_buff * sdb, size_t size) { - struct shm_du_buff * sdb; - - if (rdrb == NULL) - return -1; - - if (idx < 0 || idx > SHM_BUFFER_SIZE) + if (sdb == NULL) return -1; -#ifdef __APPLE__ - pthread_mutex_lock(rdrb->lock); -#else - if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) { - LOG_DBGF("Recovering dead mutex."); - pthread_mutex_consistent(rdrb->lock); - } -#endif - - sdb = idx_to_du_buff_ptr(rdrb, idx); - if (size > sdb->du_tail - sdb->du_head) { - pthread_mutex_unlock(rdrb->lock); - LOG_DBGF("Tried to release beyond sdu boundary."); + LOG_DBGF("Tried to release beyond SDU boundary."); return -EOVERFLOW; } sdb->du_head += size; - pthread_mutex_unlock(rdrb->lock); - return 0; } -int shm_du_buff_tail_release(struct shm_rdrbuff * rdrb, - ssize_t idx, +int shm_du_buff_tail_release(struct shm_du_buff * sdb, size_t size) { - struct shm_du_buff * sdb; - - if (rdrb == NULL) - return -1; - - if (idx < 0 || idx > SHM_BUFFER_SIZE) + if (sdb == NULL) return -1; -#ifdef __APPLE__ - pthread_mutex_lock(rdrb->lock); -#else - if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) { - LOG_DBGF("Recovering dead mutex."); - pthread_mutex_consistent(rdrb->lock); - } -#endif - sdb = idx_to_du_buff_ptr(rdrb, idx); - if (size > sdb->du_tail - sdb->du_head) { - pthread_mutex_unlock(rdrb->lock); - LOG_DBGF("Tried to release beyond sdu boundary."); + LOG_ERR("Tried to release beyond SDU boundary."); return -EOVERFLOW; } sdb->du_tail -= size; - pthread_mutex_unlock(rdrb->lock); - return 0; } diff --git a/src/tools/irm/irm_ipcp_bootstrap.c b/src/tools/irm/irm_ipcp_bootstrap.c index 3db43e6e..ba9b7e2e 100644 --- a/src/tools/irm/irm_ipcp_bootstrap.c +++ b/src/tools/irm/irm_ipcp_bootstrap.c @@ -42,8 +42,6 @@ #define DEFAULT_CEP_ID_SIZE 2 #define DEFAULT_PDU_LEN_SIZE 2 #define DEFAULT_SEQ_NO_SIZE 4 -#define DEFAULT_TTL_SIZE 1 -#define DEFAULT_CHK_SIZE 2 #define DEFAULT_MIN_PDU_SIZE 0 #define DEFAULT_MAX_PDU_SIZE 9000 #define DEFAULT_DDNS 0 @@ -62,8 +60,8 @@ static void usage() " [cep_id <CEP-id size> (default: %d)]\n" " [pdu_len <PDU length size> (default: %d)]\n" " [seqno <sequence number size> (default: %d)]\n" - " [ttl <time to live size> (default: %d)]\n" - " [chk <checksum size> (default: %d)]\n" + " [ttl <add time to live value in the PCI>]\n" + " [chk <add 32-bit checksum in the PCI>]\n" " [min_pdu <minimum PDU size> (default: %d)]\n" " [max_pdu <maximum PDU size> (default: %d)]\n" "if TYPE == " SHIM_UDP "\n" @@ -74,7 +72,6 @@ static void usage() " if_name <interface name>\n", DEFAULT_ADDR_SIZE, DEFAULT_CEP_ID_SIZE, DEFAULT_PDU_LEN_SIZE, DEFAULT_SEQ_NO_SIZE, - DEFAULT_TTL_SIZE, DEFAULT_CHK_SIZE, DEFAULT_MIN_PDU_SIZE, DEFAULT_MAX_PDU_SIZE, DEFAULT_DDNS); } @@ -86,8 +83,8 @@ int do_bootstrap_ipcp(int argc, char ** argv) uint8_t cep_id_size = DEFAULT_CEP_ID_SIZE; uint8_t pdu_length_size = DEFAULT_PDU_LEN_SIZE; uint8_t seqno_size = DEFAULT_SEQ_NO_SIZE; - uint8_t ttl_size = DEFAULT_TTL_SIZE; - uint8_t chk_size = DEFAULT_CHK_SIZE; + bool has_ttl = false; + bool has_chk = false; uint32_t min_pdu_size = DEFAULT_MIN_PDU_SIZE; uint32_t max_pdu_size = DEFAULT_MAX_PDU_SIZE; uint32_t ip_addr = 0; @@ -112,7 +109,7 @@ int do_bootstrap_ipcp(int argc, char ** argv) return -1; } } else if (matches(*argv, "dns") == 0) { - if (inet_pton (AF_INET, *(argv + 1), &dns_addr) != 1) { + if (inet_pton(AF_INET, *(argv + 1), &dns_addr) != 1) { usage(); return -1; } @@ -127,9 +124,13 @@ int do_bootstrap_ipcp(int argc, char ** argv) } else if (matches(*argv, "seqno") == 0) { seqno_size = atoi(*(argv + 1)); } else if (matches(*argv, "ttl") == 0) { - ttl_size = atoi(*(argv + 1)); + has_ttl = true; + argc++; + argv--; } else if (matches(*argv, "chk") == 0) { - chk_size = atoi(*(argv + 1)); + has_chk = true; + argc++; + argv--; } else if (matches(*argv, "min_pdu") == 0) { min_pdu_size = atoi(*(argv + 1)); } else if (matches(*argv, "max_pdu") == 0) { @@ -157,8 +158,8 @@ int do_bootstrap_ipcp(int argc, char ** argv) conf.cep_id_size = cep_id_size; conf.pdu_length_size = pdu_length_size; conf.seqno_size = seqno_size; - conf.ttl_size = ttl_size; - conf.chk_size = chk_size; + conf.has_ttl = has_ttl; + conf.has_chk = has_chk; conf.min_pdu_size = min_pdu_size; conf.max_pdu_size = max_pdu_size; } else if (strcmp(ipcp_type, SHIM_UDP) == 0) { |