ospf_nvram.c

vxworks下ospf协议栈

/* ospf_nvram.c - OSPF nvram */

/* Copyright 2003 Wind River Systems, Inc. */
#include "copyright_wrs.h"

/*
modification history
--------------------
01d,14aug03,kkz Changed nvram to ospf_nvram
01c,02jun03,agi removed unused functions
01b,30may03,agi undefined NVRAM_DEBUG
01a,28may03,agi created (ported from RWOS)
*/

/* defines */
#define GLOBAL_FILE
#define ILLEGAL_SECTION_INDEX 0xff

/* includes */
#include "stddef.h"
#include "stdio.h"
#include "string.h"
#include "ospf.h"
#include "ospf_vnvram.h"
#include "taskLib.h"

#if defined (__RAM_FILE__)
static char *cptr_current_string;
#endif

#undef NVRAM_DEBUG
#ifdef NVRAM_DEBUG
#define nvram_printf(_x)    { printf _x; }
#else
#define nvram_printf(_x)
#endif /* nvram_printf */


extern BOOLEAN nvram_is_parameter_enabled (char *cptr_parameter_string);

/****************************************************************************/
static enum TEST read_router_ini_parameters (char *cptr_name_of_ini_file,ULONG location_of_ini_file);
static enum TEST router_management_parameters (char *cptr_string_from_config_file,char *cptr_value_string);
static BYTE get_section_name (char *cptr_section_name);
static enum TEST read_router_ini_section_parameters (char *cptr_name_of_ini_file,ULONG location_of_ini_file,
    char *cptr_section_name,void *vptr_location_of_configuration_table);

static char *section_name_array[] = {"","","","","","","","","","","","","","",""};
static OSPF_CONFIGURATION_TABLE *sptr_configuration_table[] = {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,};


#if defined (__RAM_FILE__)


static char *find_cr_newline (char *cptr_string_from_config_file);
static enum TEST get_string_from_memory_file_image (char *cptr_return_string,USHORT size_of_return_string,
        ULONG location_of_ini_file);
#else
    static enum TEST parse_section_ini_parameters (char *string_from_ini_file,ULONG location_of_ini_file,
        void *vptr_location_of_configuration_table);
#endif /* __RAM_FILE */
/****************************************************************************/
enum TEST ospf_initialize_nvram (char *cptr_file_name,ULONG location_of_ini_file,char *cptr_section_name,
    void *vptr_location_of_configuration_table)
{
    enum TEST return_code;
    static  SEM_ID  nvram_mutex;

    OSPF_PRINTF_PROLOGUE (OSPF_PROLOGUE_PRINTF, "OSPF: Entering ospf_initialize_nvram\r\n");

    if (nvram_mutex == NULL)
        {

        nvram_mutex = semMCreate (SEM_Q_FIFO |SEM_DELETE_SAFE );

        if (nvram_mutex == NULL)
            {
            return (FAIL);
            }
        }

    semTake (nvram_mutex, WAIT_FOREVER);


    if (cptr_section_name == NULL)
        {
        return_code = read_router_ini_parameters (cptr_file_name, location_of_ini_file);
        }
    else
        {
        return_code = read_router_ini_section_parameters (cptr_file_name, location_of_ini_file,cptr_section_name,
            vptr_location_of_configuration_table);
        }
    memset (section_name_array, 0x00, sizeof (section_name_array));

    memset (sptr_configuration_table, 0x00, sizeof (sptr_configuration_table));

    ospf_nvram.number_of_configurations = (BYTE)0;

    semGive (nvram_mutex);

    return (return_code);
}


/****************************************************************************/
static enum TEST read_router_ini_parameters (char *cptr_name_of_ini_file,ULONG location_of_ini_file)
{
    char *cptr_value_string;
    char string_from_ini_file[256];

#if !defined (__RAM_FILE__)
    FILE *filptr_ini_file;
#endif

    if ((cptr_name_of_ini_file == NULL) && (location_of_ini_file == 0x00000000L))
        {
        nvram_printf (("NVRAM: No Configuration File Given!\r\n"));

        return (FAIL);
        }
    else
        {
#if !defined (__RAM_FILE__)
        nvram_printf (("NVRAM: File Open\r\n",cptr_name_of_ini_file));

        if ((filptr_ini_file =  fopen (cptr_name_of_ini_file, "r")) == NULL)
            {
            nvram_printf (("NVRAM: Could not find %s file, \r\n",cptr_name_of_ini_file));
            return (FAIL);
            }
#endif
        }

#if !defined (__RAM_FILE__)
    nvram_printf (("NVRAM: Current Configuration Setup in %s\r\n",cptr_name_of_ini_file));
#else
    nvram_printf (("NVRAM: Current Configuration Setup at %08lx\r\n",location_of_ini_file));
#endif

    ospf_nvram.current_configuration_section_index = ILLEGAL_SECTION_INDEX;
    ospf_nvram.display_configuration_file = TRUE;

#if !defined (__RAM_FILE__)
    while (fgets (string_from_ini_file,sizeof (string_from_ini_file),filptr_ini_file) != NULL)
#else
    cptr_current_string = NULL;

    while (get_string_from_memory_file_image (string_from_ini_file,sizeof (string_from_ini_file),location_of_ini_file) == PASS)
#endif
        {
        if (string_from_ini_file[0] == '/' && string_from_ini_file[1] == '/')
            {
            continue;
            }

        cptr_value_string = strchr (string_from_ini_file, '=');

        if (cptr_value_string == NULL)
            {
            if (string_from_ini_file[0] != '[' && string_from_ini_file[1] != '[')
                {
                continue;
                }
            }
        else
            {
            cptr_value_string++;        /* skip equals */
            while(*cptr_value_string && *cptr_value_string <= ' ')
                {
                cptr_value_string++; /* skip any white space after equals */
                }
            }

        if (ospf_nvram.display_configuration_file == TRUE)
            {
#if !defined (__RAM_FILE__)
            nvram_printf (("%s",string_from_ini_file));
#else
            nvram_printf (("%s\r\n",string_from_ini_file));
#endif
            }

        if (router_management_parameters (string_from_ini_file,cptr_value_string) == FAIL)
            {
#if !defined (__RAM_FILE__)
           fclose (filptr_ini_file);
#endif
            return (FAIL);
            }
        }

#if !defined (__RAM_FILE__)
   fclose (filptr_ini_file);

    PARAMETER_NOT_USED (location_of_ini_file);
#endif

    return (PASS);
}


/****************************************************************************/
static void add_section_name_and_configuration_table_pointer (char *cptr_section_name,
    OSPF_CONFIGURATION_TABLE *sptr_configuration_table_to_add)
{
    section_name_array[ospf_nvram.number_of_configurations] = cptr_section_name;

    sptr_configuration_table[ospf_nvram.number_of_configurations] = sptr_configuration_table_to_add;

    ospf_nvram.number_of_configurations = (BYTE) (ospf_nvram.number_of_configurations + 1);
}


/****************************************************************************/
static enum TEST read_router_ini_section_parameters (char *cptr_name_of_ini_file,ULONG location_of_ini_file,
    char *cptr_section_name,void *vptr_location_of_configuration_table)
{
    char *cptr_value_string;
    char string_from_ini_file[256];


#if !defined (__RAM_FILE__)
    FILE *filptr_ini_file;
#endif

    if (vptr_location_of_configuration_table == NULL)
        {
        return (FAIL);
        }

    add_section_name_and_configuration_table_pointer (cptr_section_name, vptr_location_of_configuration_table);


    if ((cptr_name_of_ini_file == NULL) && (location_of_ini_file == 0x00000000L))
        {
        nvram_printf (("NVRAM: No Configuration File Given!\r\n"));
        return (FAIL);
        }
    else
        {
#if !defined (__RAM_FILE__)
        nvram_printf (("File Open\r\n",cptr_name_of_ini_file));

        #if (_BYTE_ORDER == _BIG_ENDIAN)
        filptr_ini_file = fopen (cptr_name_of_ini_file, "r");
        #else
        filptr_ini_file = fopen (cptr_name_of_ini_file, "rt");
        #endif
        if (filptr_ini_file== NULL)
            {
            nvram_printf (("NVRAM: Could not find %s file, \r\n",cptr_name_of_ini_file));
            return (FAIL);
            }
#endif
        }

#if !defined (__RAM_FILE__)
    nvram_printf (("NVRAM: Current Configuration Setup in %s\r\n",cptr_name_of_ini_file));
#else
    nvram_printf (("NVRAM: Current Configuration Setup at %08lx\r\n",location_of_ini_file));
#endif

        ospf_nvram.current_configuration_section_index = ILLEGAL_SECTION_INDEX;
    ospf_nvram.display_configuration_file = TRUE;

#if !defined (__RAM_FILE__)
    while (fgets (string_from_ini_file,sizeof (string_from_ini_file),filptr_ini_file) != NULL)
#else
    cptr_current_string = NULL;

    while (get_string_from_memory_file_image (string_from_ini_file,sizeof (string_from_ini_file),location_of_ini_file) == PASS)
#endif
        {
        if (string_from_ini_file[0] == '/' && string_from_ini_file[1] == '/')
            {
            continue;
            }
        else if ((cptr_value_string = strchr (string_from_ini_file,'=')) == NULL)
            {
            continue;
            }

        cptr_value_string++;        /* skip equals */
        while(*cptr_value_string && *cptr_value_string <= ' ')
            {
            cptr_value_string++; /* skip any white space after equals */
            }

        if (ospf_nvram.display_configuration_file == TRUE)
            {
#if !defined (__RAM_FILE__)
            nvram_printf (("%s",string_from_ini_file));
#else
            nvram_printf (("%s\r\n",string_from_ini_file));