diff options
Diffstat (limited to 'include/netinet/ip.h')
| -rw-r--r-- | include/netinet/ip.h | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/include/netinet/ip.h b/include/netinet/ip.h index 19e12492d..3fe58b9ee 100644 --- a/include/netinet/ip.h +++ b/include/netinet/ip.h @@ -188,7 +188,25 @@ struct ip_timestamp #define IPTOS_DSCP_EF 0xb8 /* - * Definitions for IP type of service (ip_tos) + * In RFC 2474, Section 4.2.2.1, the Class Selector Codepoints subsume + * the old ToS Precedence values. + */ +#define IPTOS_CLASS_MASK 0xe0 +#define IPTOS_CLASS(class) ((class) & IPTOS_CLASS_MASK) +#define IPTOS_CLASS_CS0 0x00 +#define IPTOS_CLASS_CS1 0x20 +#define IPTOS_CLASS_CS2 0x40 +#define IPTOS_CLASS_CS3 0x60 +#define IPTOS_CLASS_CS4 0x80 +#define IPTOS_CLASS_CS5 0xa0 +#define IPTOS_CLASS_CS6 0xc0 +#define IPTOS_CLASS_CS7 0xe0 + +#define IPTOS_CLASS_DEFAULT IPTOS_CLASS_CS0 + +/* + * Definitions for IP type of service (ip_tos) [deprecated; use DSCP + * and CS definitions above instead.] */ #define IPTOS_TOS_MASK 0x1E #define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK) @@ -199,18 +217,18 @@ struct ip_timestamp #define IPTOS_MINCOST IPTOS_LOWCOST /* - * Definitions for IP precedence (also in ip_tos) (hopefully unused) + * Definitions for IP precedence (also in ip_tos) [also deprecated.] */ -#define IPTOS_PREC_MASK 0xe0 -#define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK) -#define IPTOS_PREC_NETCONTROL 0xe0 -#define IPTOS_PREC_INTERNETCONTROL 0xc0 -#define IPTOS_PREC_CRITIC_ECP 0xa0 -#define IPTOS_PREC_FLASHOVERRIDE 0x80 -#define IPTOS_PREC_FLASH 0x60 -#define IPTOS_PREC_IMMEDIATE 0x40 -#define IPTOS_PREC_PRIORITY 0x20 -#define IPTOS_PREC_ROUTINE 0x00 +#define IPTOS_PREC_MASK IPTOS_CLASS_MASK +#define IPTOS_PREC(tos) IPTOS_CLASS(tos) +#define IPTOS_PREC_NETCONTROL IPTOS_CLASS_CS7 +#define IPTOS_PREC_INTERNETCONTROL IPTOS_CLASS_CS6 +#define IPTOS_PREC_CRITIC_ECP IPTOS_CLASS_CS5 +#define IPTOS_PREC_FLASHOVERRIDE IPTOS_CLASS_CS4 +#define IPTOS_PREC_FLASH IPTOS_CLASS_CS3 +#define IPTOS_PREC_IMMEDIATE IPTOS_CLASS_CS2 +#define IPTOS_PREC_PRIORITY IPTOS_CLASS_CS1 +#define IPTOS_PREC_ROUTINE IPTOS_CLASS_CS0 /* * Definitions for options. |