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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/basic/arphrd-util.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/basic/arphrd-util.c')
-rw-r--r-- | src/basic/arphrd-util.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/basic/arphrd-util.c b/src/basic/arphrd-util.c new file mode 100644 index 0000000..3ea2c9d --- /dev/null +++ b/src/basic/arphrd-util.c @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include <errno.h> +#include <netinet/in.h> +#include <linux/if_arp.h> +#include <linux/if_infiniband.h> +#include <string.h> + +#include "arphrd-util.h" +#include "macro.h" + +static const struct arphrd_name* lookup_arphrd(register const char *str, register GPERF_LEN_TYPE len); + +#include "arphrd-from-name.h" +#include "arphrd-to-name.h" + +int arphrd_from_name(const char *name) { + const struct arphrd_name *sc; + + assert(name); + + sc = lookup_arphrd(name, strlen(name)); + if (!sc) + return -EINVAL; + + return sc->id; +} + +size_t arphrd_to_hw_addr_len(uint16_t arphrd) { + switch (arphrd) { + case ARPHRD_ETHER: + return ETH_ALEN; + case ARPHRD_INFINIBAND: + return INFINIBAND_ALEN; + case ARPHRD_TUNNEL: + case ARPHRD_SIT: + case ARPHRD_IPGRE: + return sizeof(struct in_addr); + case ARPHRD_TUNNEL6: + case ARPHRD_IP6GRE: + return sizeof(struct in6_addr); + default: + return 0; + } +} |