| /* Copyright 2019 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> |
| * |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <errno.h> |
| #include <string.h> |
| #include <osmocom/core/utils.h> |
| #include <osmocom/gsupclient/cni_peer_id.h> |
| |
| bool osmo_ipa_name_is_empty(const struct osmo_ipa_name *ipa_name) |
| { |
| return (!ipa_name) || (!ipa_name->len); |
| } |
| |
| int osmo_ipa_name_set(struct osmo_ipa_name *ipa_name, const uint8_t *val, size_t len) |
| { |
| if (!val || !len) { |
| *ipa_name = (struct osmo_ipa_name){}; |
| return 0; |
| } |
| if (len > sizeof(ipa_name->val)) |
| return -ENOSPC; |
| ipa_name->len = len; |
| memcpy(ipa_name->val, val, len); |
| return 0; |
| } |
| |
| static int osmo_ipa_name_set_str_va(struct osmo_ipa_name *ipa_name, const char *str_fmt, va_list ap) |
| { |
| if (!str_fmt) |
| return osmo_ipa_name_set(ipa_name, NULL, 0); |
| vsnprintf((char*)(ipa_name->val), sizeof(ipa_name->val), str_fmt, ap); |
| ipa_name->len = strlen((char*)(ipa_name->val))+1; |
| return 0; |
| } |
| |
| int osmo_ipa_name_set_str(struct osmo_ipa_name *ipa_name, const char *str_fmt, ...) |
| { |
| va_list ap; |
| int rc; |
| va_start(ap, str_fmt); |
| rc = osmo_ipa_name_set_str_va(ipa_name, str_fmt, ap); |
| va_end(ap); |
| return rc; |
| } |
| |
| int osmo_ipa_name_cmp(const struct osmo_ipa_name *a, const struct osmo_ipa_name *b) |
| { |
| int cmp; |
| if (a == b) |
| return 0; |
| if (!a) |
| return -1; |
| if (!b) |
| return 1; |
| if (!a->len && !b->len) |
| return 0; |
| if (!a->len && b->len) |
| return -1; |
| if (!b->len && a->len) |
| return 1; |
| |
| if (a->len == b->len) |
| return memcmp(a->val, b->val, a->len); |
| else if (a->len < b->len) { |
| cmp = memcmp(a->val, b->val, a->len); |
| if (!cmp) |
| cmp = -1; |
| return cmp; |
| } else { |
| /* a->len > b->len */ |
| cmp = memcmp(a->val, b->val, b->len); |
| if (!cmp) |
| cmp = 1; |
| return cmp; |
| } |
| } |
| |
| /* Call osmo_ipa_name_to_str_c with OTC_SELECT. */ |
| const char *osmo_ipa_name_to_str(const struct osmo_ipa_name *ipa_name) |
| { |
| return osmo_ipa_name_to_str_c(OTC_SELECT, ipa_name); |
| } |
| |
| /* Return an unquoted string, not including the terminating zero. Used for writing VTY config. */ |
| const char *osmo_ipa_name_to_str_c(void *ctx, const struct osmo_ipa_name *ipa_name) |
| { |
| size_t len = ipa_name->len; |
| if (!len) |
| return talloc_strdup(ctx, ""); |
| if (ipa_name->val[len-1] == '\0') |
| len--; |
| return osmo_escape_str_c(ctx, (char*)ipa_name->val, len); |
| } |
| |
| bool osmo_cni_peer_id_is_empty(const struct osmo_cni_peer_id *cni_peer_id) |
| { |
| if (!cni_peer_id) |
| return true; |
| switch (cni_peer_id->type) { |
| case OSMO_CNI_PEER_ID_EMPTY: |
| return true; |
| case OSMO_CNI_PEER_ID_IPA_NAME: |
| return osmo_ipa_name_is_empty(&cni_peer_id->ipa_name); |
| default: |
| return false; |
| } |
| } |
| int osmo_cni_peer_id_set(struct osmo_cni_peer_id *cni_peer_id, enum osmo_cni_peer_id_type type, |
| const uint8_t *val, size_t len) |
| { |
| cni_peer_id->type = type; |
| switch (type) { |
| case OSMO_CNI_PEER_ID_IPA_NAME: |
| return osmo_ipa_name_set(&cni_peer_id->ipa_name, val, len); |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| int osmo_cni_peer_id_set_str(struct osmo_cni_peer_id *cni_peer_id, enum osmo_cni_peer_id_type type, |
| const char *str_fmt, ...) |
| { |
| va_list ap; |
| int rc; |
| |
| *cni_peer_id = (struct osmo_cni_peer_id){}; |
| |
| switch (type) { |
| case OSMO_CNI_PEER_ID_IPA_NAME: |
| cni_peer_id->type = OSMO_CNI_PEER_ID_IPA_NAME; |
| va_start(ap, str_fmt); |
| rc = osmo_ipa_name_set_str_va(&cni_peer_id->ipa_name, str_fmt, ap); |
| va_end(ap); |
| return rc; |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| int osmo_cni_peer_id_cmp(const struct osmo_cni_peer_id *a, const struct osmo_cni_peer_id *b) |
| { |
| if (a == b) |
| return 0; |
| if (!a) |
| return -1; |
| if (!b) |
| return 1; |
| if (a->type != b->type) |
| return OSMO_CMP(a->type, b->type); |
| switch (a->type) { |
| case OSMO_CNI_PEER_ID_IPA_NAME: |
| return osmo_ipa_name_cmp(&a->ipa_name, &b->ipa_name); |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| const struct value_string osmo_cni_peer_id_type_names[] = { |
| { OSMO_CNI_PEER_ID_IPA_NAME, "IPA-name" }, |
| {} |
| }; |
| |
| /* Call osmo_cni_peer_id_to_str_c with OTC_SELECT */ |
| const char *osmo_cni_peer_id_to_str(const struct osmo_cni_peer_id *cpi) |
| { |
| return osmo_cni_peer_id_to_str_c(OTC_SELECT, cpi); |
| } |
| |
| /* Return an unquoted string, not including the terminating zero. Used for writing VTY config. */ |
| const char *osmo_cni_peer_id_to_str_c(void *ctx, const struct osmo_cni_peer_id *cpi) |
| { |
| switch (cpi->type) { |
| case OSMO_CNI_PEER_ID_IPA_NAME: |
| return osmo_ipa_name_to_str_c(ctx, &cpi->ipa_name); |
| default: |
| return talloc_strdup(ctx, osmo_cni_peer_id_type_name(cpi->type)); |
| } |
| } |