diff options
Diffstat (limited to 'lib/defaults.h')
| -rw-r--r-- | lib/defaults.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/lib/defaults.h b/lib/defaults.h index c215341501..ad2f1ad2e7 100644 --- a/lib/defaults.h +++ b/lib/defaults.h @@ -18,6 +18,142 @@ #ifndef _FRR_DEFAULTS_H #define _FRR_DEFAULTS_H +#include "config.h" +#include "compiler.h" + +#ifdef HAVE_DATACENTER + +#define DFLT_BGP_IMPORT_CHECK 1 +#define DFLT_BGP_TIMERS_CONNECT 10 +#define DFLT_BGP_HOLDTIME 9 +#define DFLT_BGP_KEEPALIVE 3 +#define DFLT_BGP_LOG_NEIGHBOR_CHANGES 1 +#define DFLT_BGP_SHOW_HOSTNAME 1 +#define DFLT_BGP_DETERMINISTIC_MED 1 + +#define DFLT_OSPF_LOG_ADJACENCY_CHANGES 1 +#define DFLT_OSPF6_LOG_ADJACENCY_CHANGES 1 + +#else /* !HAVE_DATACENTER */ + +#define DFLT_BGP_IMPORT_CHECK 0 +#define DFLT_BGP_TIMERS_CONNECT 120 +#define DFLT_BGP_HOLDTIME 180 +#define DFLT_BGP_KEEPALIVE 60 +#define DFLT_BGP_LOG_NEIGHBOR_CHANGES 0 +#define DFLT_BGP_SHOW_HOSTNAME 0 +#define DFLT_BGP_DETERMINISTIC_MED 0 + +#define DFLT_OSPF_LOG_ADJACENCY_CHANGES 0 +#define DFLT_OSPF6_LOG_ADJACENCY_CHANGES 0 + +#endif /* !HAVE_DATACENTER */ + +/* frr_default wraps information about a default that has different + * values depending on FRR version or default-set + * + * frr_default_entry describes one match rule and the resulting value; + * entries are evaluated in order and the first matching is used. + * + * If both match_version and match_profile are specified, they must both + * match. A NULL value matches everything. + */ +struct frr_default_entry { + /* syntax: "(<|<=|==|>=|>) [whitespace] version", e.g. + * ">= 6.1-dev" "<6.0" + */ + const char *match_version; + /* exact profile string to compare against */ + const char *match_profile; + + /* value to use */ + const char *val_str; + long val_long; + unsigned long val_ulong; + float val_float; +}; + +/* one struct frr_default exists for each malleable default value */ +struct frr_default { + struct frr_default *next; + + /* for UI/debug use */ + const char *name; + + /* the following two sets of variables differ because the written + * config always targets the *current* FRR version + * + * e.g. if you load a config that has "frr version 5.0" on 6.0 + * *dflt_long => set to the default value in 5.0 + * *save_long => set to the default value in 6.0 + * config save will write "frr version 6.0" with 6.0 defaults + */ + + /* variable holding the default value for reading/use */ + const char **dflt_str; + long *dflt_long; + unsigned long *dflt_ulong; + float *dflt_float; + + /* variable to use when comparing for config save */ + const char **save_str; + long *save_long; + unsigned long *save_ulong; + float *save_float; + + struct frr_default_entry entries[]; +}; + +#define _FRR_CFG_DEFAULT(type, typname, varname, ...) \ + static type DFLT_##varname; \ + static type SAVE_##varname; \ + static struct frr_default _dflt_##varname = { \ + .name = #varname, \ + .dflt_##typname = &DFLT_##varname, \ + .save_##typname = &SAVE_##varname, \ + .entries = { __VA_ARGS__ }, \ + }; \ + static void _dfltinit_##varname(void) \ + __attribute__((_CONSTRUCTOR(1000))); \ + static void _dfltinit_##varname(void) \ + { \ + frr_default_add(&_dflt_##varname); \ + } + +/* use: + * FRR_CFG_DEFAULT_LONG(SHARP_BLUNTNESS, + * { .val_long = 2, .match_version = ">= 10.0" }, + * { .val_long = 1, .match_profile = "datacenter" }, + * { .val_long = 0 }, + * ) + * + * This will create DFLT_SHARP_BLUNTNESS and SAVE_SHARP_BLUNTNESS variables. + * + * Note: preprocessor defines cannot be used as variable names because they + * will be expanded and blow up with a compile error. Use an enum or add an + * extra _ at the beginning (e.g. _SHARP_BLUNTNESS => DFLT__SHARP_BLUNTNESS) + */ +#define FRR_CFG_DEFAULT_LONG(varname, ...) \ + _FRR_CFG_DEFAULT(long, long, varname, ## __VA_ARGS__) +#define FRR_CFG_DEFAULT_ULONG(varname, ...) \ + _FRR_CFG_DEFAULT(unsigned long, ulong, varname, ## __VA_ARGS__) +#define FRR_CFG_DEFAULT_FLOAT(varname, ...) \ + _FRR_CFG_DEFAULT(float, float, varname, ## __VA_ARGS__) +#define FRR_CFG_DEFAULT_STR(varname, ...) \ + _FRR_CFG_DEFAULT(const char *, str, varname, ## __VA_ARGS__) + + +/* daemons don't need to call any of these, libfrr handles that */ +extern void frr_default_add(struct frr_default *dflt); +extern void frr_defaults_version_set(const char *version); +extern void frr_defaults_profile_set(const char *profile); +extern const char *frr_defaults_version(void); +extern const char *frr_defaults_profile(void); +extern void frr_defaults_apply(void); + +extern const char *frr_defaults_profiles[]; +extern bool frr_defaults_profile_valid(const char *profile); + /* like strcmp(), but with version ordering */ extern int frr_version_cmp(const char *aa, const char *bb); |