Changeset View
Changeset View
Standalone View
Standalone View
head/sys/dev/random/randomdev.c
| Show First 20 Lines • Show All 404 Lines • ▼ Show 20 Lines | case FIONBIO: | ||||
| break; | break; | ||||
| default: | default: | ||||
| error = ENOTTY; | error = ENOTTY; | ||||
| } | } | ||||
| return (error); | return (error); | ||||
| } | } | ||||
| void | |||||
| random_source_register(struct random_source *rsource) | |||||
| { | |||||
| struct random_sources *rrs; | |||||
| KASSERT(rsource != NULL, ("invalid input to %s", __func__)); | |||||
| rrs = malloc(sizeof(*rrs), M_ENTROPY, M_WAITOK); | |||||
| rrs->rrs_source = rsource; | |||||
| random_harvest_register_source(rsource->rs_source); | |||||
| printf("random: registering fast source %s\n", rsource->rs_ident); | |||||
| LIST_INSERT_HEAD(&source_list, rrs, rrs_entries); | |||||
| } | |||||
| void | |||||
| random_source_deregister(struct random_source *rsource) | |||||
| { | |||||
| struct random_sources *rrs = NULL; | |||||
| KASSERT(rsource != NULL, ("invalid input to %s", __func__)); | |||||
| random_harvest_deregister_source(rsource->rs_source); | |||||
| LIST_FOREACH(rrs, &source_list, rrs_entries) | |||||
| if (rrs->rrs_source == rsource) { | |||||
| LIST_REMOVE(rrs, rrs_entries); | |||||
| break; | |||||
| } | |||||
| if (rrs != NULL) | |||||
| free(rrs, M_ENTROPY); | |||||
| } | |||||
| static int | |||||
| random_source_handler(SYSCTL_HANDLER_ARGS) | |||||
| { | |||||
| struct random_sources *rrs; | |||||
| struct sbuf sbuf; | |||||
| int error, count; | |||||
| sbuf_new_for_sysctl(&sbuf, NULL, 64, req); | |||||
| count = 0; | |||||
| LIST_FOREACH(rrs, &source_list, rrs_entries) { | |||||
| sbuf_cat(&sbuf, (count++ ? ",'" : "'")); | |||||
| sbuf_cat(&sbuf, rrs->rrs_source->rs_ident); | |||||
| sbuf_cat(&sbuf, "'"); | |||||
| } | |||||
| error = sbuf_finish(&sbuf); | |||||
| sbuf_delete(&sbuf); | |||||
| return (error); | |||||
| } | |||||
| SYSCTL_PROC(_kern_random, OID_AUTO, random_sources, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, | |||||
| NULL, 0, random_source_handler, "A", | |||||
| "List of active fast entropy sources."); | |||||
| /* ARGSUSED */ | /* ARGSUSED */ | ||||
| static int | static int | ||||
| randomdev_modevent(module_t mod __unused, int type, void *data __unused) | randomdev_modevent(module_t mod __unused, int type, void *data __unused) | ||||
| { | { | ||||
| int error = 0; | int error = 0; | ||||
| switch (type) { | switch (type) { | ||||
| case MOD_LOAD: | case MOD_LOAD: | ||||
| Show All 27 Lines | |||||