diff options
Diffstat (limited to 'shared/systemd/src/basic/ether-addr-util.h')
| -rw-r--r-- | shared/systemd/src/basic/ether-addr-util.h | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/shared/systemd/src/basic/ether-addr-util.h b/shared/systemd/src/basic/ether-addr-util.h index 4e44b30b..942ce556 100644 --- a/shared/systemd/src/basic/ether-addr-util.h +++ b/shared/systemd/src/basic/ether-addr-util.h @@ -1,11 +1,35 @@ -/* SPDX-License-Identifier: LGPL-2.1+ */ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ #pragma once +#include <linux/if_infiniband.h> #include <net/ethernet.h> #include <stdbool.h> #include "hash-funcs.h" +/* This is MAX_ADDR_LEN as defined in linux/netdevice.h, but net/if_arp.h + * defines a macro of the same name with a much lower size. */ +#define HW_ADDR_MAX_SIZE 32 + +union hw_addr_union { + struct ether_addr ether; + uint8_t infiniband[INFINIBAND_ALEN]; + uint8_t bytes[HW_ADDR_MAX_SIZE]; +}; + +typedef struct hw_addr_data { + union hw_addr_union addr; + size_t length; +} hw_addr_data; + +#define HW_ADDR_TO_STRING_MAX (3*HW_ADDR_MAX_SIZE) +char* hw_addr_to_string(const hw_addr_data *addr, char buffer[HW_ADDR_TO_STRING_MAX]); + +/* Use only as function argument, never stand-alone! */ +#define HW_ADDR_TO_STR(hw_addr) hw_addr_to_string((hw_addr), (char[HW_ADDR_TO_STRING_MAX]){}) + +#define HW_ADDR_NULL ((const hw_addr_data){}) + #define ETHER_ADDR_FORMAT_STR "%02X%02X%02X%02X%02X%02X" #define ETHER_ADDR_FORMAT_VAL(x) (x).ether_addr_octet[0], (x).ether_addr_octet[1], (x).ether_addr_octet[2], (x).ether_addr_octet[3], (x).ether_addr_octet[4], (x).ether_addr_octet[5] |