From 7286b2518ec8e4398b512ce95def9166a7af2e4a Mon Sep 17 00:00:00 2001 From: Deepak S Date: Thu, 13 Jul 2017 21:26:50 -0700 Subject: Adding PROX(Packet pROcessing eXecution engine) VNF to sampleVNF JIRA: SAMPLEVNF-55 PROX is a DPDK-based application implementing Telco use-cases such as a simplified BRAS/BNG, light-weight AFTR... It also allows configuring finer grained network functions like QoS, Routing, load-balancing... (We are moving PROX version v039 to sampleVNF https://01.org/intel-data-plane-performance-demonstrators/prox-overview) Change-Id: Ia3cb02cf0e49ac5596e922c197ff7e010293d033 Signed-off-by: Deepak S --- VNFs/DPPD-PROX/file_utils.c | 92 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 VNFs/DPPD-PROX/file_utils.c (limited to 'VNFs/DPPD-PROX/file_utils.c') diff --git a/VNFs/DPPD-PROX/file_utils.c b/VNFs/DPPD-PROX/file_utils.c new file mode 100644 index 00000000..b3cf0846 --- /dev/null +++ b/VNFs/DPPD-PROX/file_utils.c @@ -0,0 +1,92 @@ +/* +// Copyright (c) 2010-2017 Intel Corporation +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +*/ + +#include +#include +#include +#include +#include + +#include "prox_args.h" +#include "file_utils.h" + +static char file_error_string[128] = {0}; + +const char *file_get_error(void) +{ + return file_error_string; +} + +__attribute__((format(printf, 1 ,2))) static void file_set_error(const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + vsnprintf(file_error_string, sizeof(file_error_string), fmt, ap); + va_end(ap); +} + +static void resolve_path_cfg_dir(char *file_name, size_t len, const char *path) +{ + if (path[0] != '/') + snprintf(file_name, len, "%s/%s", get_cfg_dir(), path); + else + strncpy(file_name, path, len); +} + +long file_get_size(const char *path) +{ + char file_name[PATH_MAX]; + struct stat s; + + resolve_path_cfg_dir(file_name, sizeof(file_name), path); + + if (stat(file_name, &s)) { + file_set_error("Stat failed on '%s': %s", path, strerror(errno)); + return -1; + } + + if ((s.st_mode & S_IFMT) != S_IFREG) { + snprintf(file_error_string, sizeof(file_error_string), "'%s' is not a file", path); + return -1; + } + + return s.st_size; +} + +int file_read_content(const char *path, uint8_t *mem, size_t beg, size_t len) +{ + char file_name[PATH_MAX]; + FILE *f; + + resolve_path_cfg_dir(file_name, sizeof(file_name), path); + f = fopen(file_name, "r"); + if (!f) { + file_set_error("Failed to read '%s': %s", path, strerror(errno)); + return -1; + } + + fseek(f, beg, SEEK_SET); + + size_t ret = fread(mem, 1, len, f); + if ((uint32_t)ret != len) { + file_set_error("Failed to read '%s:%zu' for %zu bytes: got %zu\n", file_name, beg, len, ret); + return -1; + } + + fclose(f); + return 0; +} -- cgit 1.2.3-korg