diff options
Diffstat (limited to 'main/common/dhcp_01.c')
| -rw-r--r-- | main/common/dhcp_01.c | 356 |
1 files changed, 180 insertions, 176 deletions
diff --git a/main/common/dhcp_01.c b/main/common/dhcp_01.c index afd7fa0..0f21095 100644 --- a/main/common/dhcp_01.c +++ b/main/common/dhcp_01.c @@ -1,7 +1,7 @@ /************************************************************************** * * Copyright (c) 2013 Alcatel-Lucent - * + * * Alcatel Lucent licenses this file to You under the Apache License, * Version 2.0 (the "License"); you may not use this file except in * compliance with the License. A copy of the License is contained the @@ -35,212 +35,216 @@ #include "stddefs.h" /* Vendor specific option definitions: */ -#define VS_PROXYIP 1 -#define VS_PHONENUM 2 -#define VS_CODER 3 -#define VS_PPADHCPSRVR 4 -#define VS_MINNETDELAY 5 -#define VS_MAXNETDELAY 6 -#define VS_APPINFO 7 -#define VS_CODERCTL 8 -#define VS_NAMEVAL 99 - -#define PPADHCPSRVR_STR "PPADHCPSRVR" +#define VS_PROXYIP 1 +#define VS_PHONENUM 2 +#define VS_CODER 3 +#define VS_PPADHCPSRVR 4 +#define VS_MINNETDELAY 5 +#define VS_MAXNETDELAY 6 +#define VS_APPINFO 7 +#define VS_CODERCTL 8 +#define VS_NAMEVAL 99 + +#define PPADHCPSRVR_STR "PPADHCPSRVR" /* ValidDHCPOffer(): - * Target issued the DISCOVER, the incoming packet is the server's - * OFFER reply. If the offer contains the vendor specific - * VS_PPADHCPSRVR option and the string within that - * option is correct, then accept the offer; by issuing a request. + * Target issued the DISCOVER, the incoming packet is the server's + * OFFER reply. If the offer contains the vendor specific + * VS_PPADHCPSRVR option and the string within that + * option is correct, then accept the offer; by issuing a request. */ -ValidDHCPOffer(struct dhcphdr *dhdr) +ValidDHCPOffer(struct dhcphdr *dhdr) { - uchar *op, *op1; - - op = op1 = 0; - op1 = DhcpGetOption(DHCPOPT_VENDORSPECIFICINFO,dhdr+1); - if (op1) { - op = DhcpGetOption(VS_PPADHCPSRVR,op1+2); - } - if (op) { - if (!strncmp(op+2,PPADHCPSRVR_STR,sizeof(PPADHCPSRVR_STR)-1)) { - return(1); - } - } - return(0); + uchar *op, *op1; + + op = op1 = 0; + op1 = DhcpGetOption(DHCPOPT_VENDORSPECIFICINFO,dhdr+1); + if(op1) { + op = DhcpGetOption(VS_PPADHCPSRVR,op1+2); + } + if(op) { + if(!strncmp(op+2,PPADHCPSRVR_STR,sizeof(PPADHCPSRVR_STR)-1)) { + return(1); + } + } + return(0); } /* buildDhcpHdr(): - * Called by dhcpboot.c to allow application-specific header stuff to - * be added to header. Return 0 if generic stuff in dhcpboot.c is to be - * used; else return 1 and the calling code will assume this function is - * dealing with it (see dhcpboot.c for basic idea). + * Called by dhcpboot.c to allow application-specific header stuff to + * be added to header. Return 0 if generic stuff in dhcpboot.c is to be + * used; else return 1 and the calling code will assume this function is + * dealing with it (see dhcpboot.c for basic idea). */ int buildDhcpHdr(struct dhcphdr *dhcpdata) { - return(0); + return(0); } /* DhcpBootpDone(): - * Called at the end of the Bootp or Dhcp transaction. - * Input... - * bootp: 1 if BOOTP; else DHCP. - * dhdr: pointer to dhcp or bootp header. - * vsize: size of vendor specific area (for bootp this is fixed at 64, - * but for dhcp it is variable). + * Called at the end of the Bootp or Dhcp transaction. + * Input... + * bootp: 1 if BOOTP; else DHCP. + * dhdr: pointer to dhcp or bootp header. + * vsize: size of vendor specific area (for bootp this is fixed at 64, + * but for dhcp it is variable). */ void DhcpBootpDone(int bootp, struct dhcphdr *dhdr, int vsize) { - return; + return; } void SetPPAOption(type,op1,varname) -int type; -uchar *op1; -char *varname; +int type; +uchar *op1; +char *varname; { - uchar *op, tmp; - - op = DhcpGetOption(type,op1+2); - if (op) { - tmp = op[*(op+1)+2]; - op[*(op+1)+2] = 0; - DhcpSetEnv(varname,op+2); - op[*(op+1)+2] = tmp; - } + uchar *op, tmp; + + op = DhcpGetOption(type,op1+2); + if(op) { + tmp = op[*(op+1)+2]; + op[*(op+1)+2] = 0; + DhcpSetEnv(varname,op+2); + op[*(op+1)+2] = tmp; + } } /* DhcpVendorSpecific(): - * Process vendor specific stuff within the incoming dhcp header. + * Process vendor specific stuff within the incoming dhcp header. */ -DhcpVendorSpecific(struct dhcphdr *dhdr) +DhcpVendorSpecific(struct dhcphdr *dhdr) { - ulong ip; - uchar *op, *op1, buf[16], tmp; - - op = op1 = 0; - op1 = DhcpGetOption(DHCPOPT_VENDORSPECIFICINFO,dhdr+1); - if (op1) { - /* Get PROXY_IP and BPROXY_IP (optionally): */ - op = DhcpGetOption(VS_PROXYIP,op1+2); - if (op) { - memcpy(&ip,op+2,4); - DhcpSetEnv("PROXY_IP",IpToString(ip,buf)); - if (*(op+1) == 8) { - memcpy(&ip,op+6,4); - DhcpSetEnv("BPROXY_IP",IpToString(ip,buf)); - } - } - - /* Get PPA phone numbers (1 or 2). */ - op = DhcpGetOption(VS_PHONENUM,op1+2); - if (op) { - char *space; - tmp = op[*(op+1)+2]; - op[*(op+1)+2] = 0; - space = strchr(op+2,' '); - if (space) { - *space = 0; - DhcpSetEnv("LINE0_NUMBER",op+2); - DhcpSetEnv("LINE1_NUMBER",space+1); - *space = ' '; - } - else - DhcpSetEnv("LINE0_NUMBER",op+2); - op[*(op+1)+2] = tmp; - } - - /* Set Coder type: */ - SetPPAOption(VS_CODER,op1,"CODER"); - - /* Set Coder control: */ - SetPPAOption(VS_CODERCTL,op1,"CODERCTL"); - - /* Set minimum network delay setting: */ - SetPPAOption(VS_MINNETDELAY,op1,"MIN_NET_DELAY"); - - /* Set maximum network delay setting: */ - SetPPAOption(VS_MAXNETDELAY,op1,"MAX_NET_DELAY"); - - /* Set appinfo: */ - SetPPAOption(VS_APPINFO,op1,"APPINFO"); - } - - /* Check for VS_NAMEVAL here... - * If the Vendor-Specific-Information is present, and within that - * information there is a sub-option of VS_NAMEVAL, - * then consider the content of that sub-option to be one or more - * strings (separated by a comma) of the format "VARNAME=VALUE". - * This is used to allow the DHCP server to configure shell variables - * into the environment prior to the monitor turning over control to - * the application. - * Two examples of VS_NAMEVAL strings: - * First, just one name-value combination... - * VARNAME=VALUE - * Second, a multiple name-value combination... - * VARNAME=VALUE,VAR1=ABC,IP=1.2.3.4 - */ - - op = op1 = 0; - op1 = DhcpGetOption(DHCPOPT_VENDORSPECIFICINFO,dhdr+1); - if (op1) - op = DhcpGetOption(VS_NAMEVAL,op1+2); - if (op) { - int len; - uchar *end, tmp; - uchar *name, *value, *eqsign, *comma, *base; - - op++; - len = (int)*op++; - base = op; - tmp = base[len]; - base[len] = 0; - end = base + len; - while (op < end) { - eqsign = (uchar *)strchr(op,'='); - if (!eqsign) - break; - name = op; - *eqsign = 0; - value = eqsign+1; - comma = (uchar *)strchr(value,','); - if (comma) { - *comma = 0; - op = comma+1; - } - else - op = end; - DhcpSetEnv(name,value); - *eqsign = '='; - *comma = ','; - } - base[len] = tmp; - } + ulong ip; + uchar *op, *op1, buf[16], tmp; + + op = op1 = 0; + op1 = DhcpGetOption(DHCPOPT_VENDORSPECIFICINFO,dhdr+1); + if(op1) { + /* Get PROXY_IP and BPROXY_IP (optionally): */ + op = DhcpGetOption(VS_PROXYIP,op1+2); + if(op) { + memcpy(&ip,op+2,4); + DhcpSetEnv("PROXY_IP",IpToString(ip,buf)); + if(*(op+1) == 8) { + memcpy(&ip,op+6,4); + DhcpSetEnv("BPROXY_IP",IpToString(ip,buf)); + } + } + + /* Get PPA phone numbers (1 or 2). */ + op = DhcpGetOption(VS_PHONENUM,op1+2); + if(op) { + char *space; + tmp = op[*(op+1)+2]; + op[*(op+1)+2] = 0; + space = strchr(op+2,' '); + if(space) { + *space = 0; + DhcpSetEnv("LINE0_NUMBER",op+2); + DhcpSetEnv("LINE1_NUMBER",space+1); + *space = ' '; + } else { + DhcpSetEnv("LINE0_NUMBER",op+2); + } + op[*(op+1)+2] = tmp; + } + + /* Set Coder type: */ + SetPPAOption(VS_CODER,op1,"CODER"); + + /* Set Coder control: */ + SetPPAOption(VS_CODERCTL,op1,"CODERCTL"); + + /* Set minimum network delay setting: */ + SetPPAOption(VS_MINNETDELAY,op1,"MIN_NET_DELAY"); + + /* Set maximum network delay setting: */ + SetPPAOption(VS_MAXNETDELAY,op1,"MAX_NET_DELAY"); + + /* Set appinfo: */ + SetPPAOption(VS_APPINFO,op1,"APPINFO"); + } + + /* Check for VS_NAMEVAL here... + * If the Vendor-Specific-Information is present, and within that + * information there is a sub-option of VS_NAMEVAL, + * then consider the content of that sub-option to be one or more + * strings (separated by a comma) of the format "VARNAME=VALUE". + * This is used to allow the DHCP server to configure shell variables + * into the environment prior to the monitor turning over control to + * the application. + * Two examples of VS_NAMEVAL strings: + * First, just one name-value combination... + * VARNAME=VALUE + * Second, a multiple name-value combination... + * VARNAME=VALUE,VAR1=ABC,IP=1.2.3.4 + */ + + op = op1 = 0; + op1 = DhcpGetOption(DHCPOPT_VENDORSPECIFICINFO,dhdr+1); + if(op1) { + op = DhcpGetOption(VS_NAMEVAL,op1+2); + } + if(op) { + int len; + uchar *end, tmp; + uchar *name, *value, *eqsign, *comma, *base; + + op++; + len = (int)*op++; + base = op; + tmp = base[len]; + base[len] = 0; + end = base + len; + while(op < end) { + eqsign = (uchar *)strchr(op,'='); + if(!eqsign) { + break; + } + name = op; + *eqsign = 0; + value = eqsign+1; + comma = (uchar *)strchr(value,','); + if(comma) { + *comma = 0; + op = comma+1; + } else { + op = end; + } + DhcpSetEnv(name,value); + *eqsign = '='; + *comma = ','; + } + base[len] = tmp; + } } int printDhcpVSopt(int vsopt, int vsoptlen, char *options) { - switch(vsopt) { - case VS_PROXYIP: - for(i=0;i<vsoptlen;i++) - printf("%d ",(unsigned int)*options++); - break; - case VS_CODER: - case VS_NAMEVAL: - case VS_MINNETDELAY: - case VS_MAXNETDELAY: - case VS_PPADHCPSRVR: - case VS_PHONENUM: - case VS_APPINFO: - for(i=0;i<vsoptlen;i++) - printf("%c",*options++); - break; - default: - return(0); - } - return(1); + switch(vsopt) { + case VS_PROXYIP: + for(i=0; i<vsoptlen; i++) { + printf("%d ",(unsigned int)*options++); + } + break; + case VS_CODER: + case VS_NAMEVAL: + case VS_MINNETDELAY: + case VS_MAXNETDELAY: + case VS_PPADHCPSRVR: + case VS_PHONENUM: + case VS_APPINFO: + for(i=0; i<vsoptlen; i++) { + printf("%c",*options++); + } + break; + default: + return(0); + } + return(1); } |