diff options
author | Thomas Haller <thaller@redhat.com> | 2018-12-28 18:11:16 +0100 |
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committer | Thomas Haller <thaller@redhat.com> | 2019-01-02 17:07:13 +0100 |
commit | 2c537b9d2155118e5f6fe49386035659550ce64c (patch) | |
tree | b989bd67082006ec9db9c331430f0f463a68bd27 /src/systemd/src/basic/ether-addr-util.c | |
parent | 616abe865dc7606b4325e1e44fff587c83ad1de7 (diff) |
systemd: move basic systemd library to shared/nm-utils
For better or worse, we already pull in large parts of systemd sources.
I need a base64 decode implementation (because glib's g_base64_decode()
cannot reject invalid encodings). Instead of coming up with my own or
copy-paste if from somewhere, reuse systemd's unbase64mem().
But for that, make systemd's basic bits an independent static library
first because I will need it in libnm-core.
This doesn't really change anything except making "libnm-systemd-core.la"
an indpendent static library that could be used from "libnm-core". We
shall still be mindful about which internal code of systemd we use, and only
access functionality that is exposed via "systemd/nm-sd-utils-shared.h".
Diffstat (limited to 'src/systemd/src/basic/ether-addr-util.c')
-rw-r--r-- | src/systemd/src/basic/ether-addr-util.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/src/systemd/src/basic/ether-addr-util.c b/src/systemd/src/basic/ether-addr-util.c deleted file mode 100644 index 602bbae059..0000000000 --- a/src/systemd/src/basic/ether-addr-util.c +++ /dev/null @@ -1,113 +0,0 @@ -/* SPDX-License-Identifier: LGPL-2.1+ */ - -#include "nm-sd-adapt.h" - -#include <errno.h> -#include <net/ethernet.h> -#include <stdio.h> -#include <sys/types.h> - -#include "ether-addr-util.h" -#include "macro.h" -#include "string-util.h" - -char* ether_addr_to_string(const struct ether_addr *addr, char buffer[ETHER_ADDR_TO_STRING_MAX]) { - assert(addr); - assert(buffer); - - /* Like ether_ntoa() but uses %02x instead of %x to print - * ethernet addresses, which makes them look less funny. Also, - * doesn't use a static buffer. */ - - sprintf(buffer, "%02x:%02x:%02x:%02x:%02x:%02x", - addr->ether_addr_octet[0], - addr->ether_addr_octet[1], - addr->ether_addr_octet[2], - addr->ether_addr_octet[3], - addr->ether_addr_octet[4], - addr->ether_addr_octet[5]); - - return buffer; -} - -int ether_addr_compare(const struct ether_addr *a, const struct ether_addr *b) { - return memcmp(a, b, ETH_ALEN); -} - -static void ether_addr_hash_func(const struct ether_addr *p, struct siphash *state) { - siphash24_compress(p, sizeof(struct ether_addr), state); -} - -DEFINE_HASH_OPS(ether_addr_hash_ops, struct ether_addr, ether_addr_hash_func, ether_addr_compare); - -int ether_addr_from_string(const char *s, struct ether_addr *ret) { - size_t pos = 0, n, field; - char sep = '\0'; - const char *hex = HEXDIGITS, *hexoff; - size_t x; - bool touched; - -#define parse_fields(v) \ - for (field = 0; field < ELEMENTSOF(v); field++) { \ - touched = false; \ - for (n = 0; n < (2 * sizeof(v[0])); n++) { \ - if (s[pos] == '\0') \ - break; \ - hexoff = strchr(hex, s[pos]); \ - if (!hexoff) \ - break; \ - assert(hexoff >= hex); \ - x = hexoff - hex; \ - if (x >= 16) \ - x -= 6; /* A-F */ \ - assert(x < 16); \ - touched = true; \ - v[field] <<= 4; \ - v[field] += x; \ - pos++; \ - } \ - if (!touched) \ - return -EINVAL; \ - if (field < (ELEMENTSOF(v)-1)) { \ - if (s[pos] != sep) \ - return -EINVAL; \ - else \ - pos++; \ - } \ - } - - assert(s); - assert(ret); - - s += strspn(s, WHITESPACE); - sep = s[strspn(s, hex)]; - - if (sep == '.') { - uint16_t shorts[3] = { 0 }; - - parse_fields(shorts); - - if (s[pos] != '\0') - return -EINVAL; - - for (n = 0; n < ELEMENTSOF(shorts); n++) { - ret->ether_addr_octet[2*n] = ((shorts[n] & (uint16_t)0xff00) >> 8); - ret->ether_addr_octet[2*n + 1] = (shorts[n] & (uint16_t)0x00ff); - } - - } else if (IN_SET(sep, ':', '-')) { - struct ether_addr out = ETHER_ADDR_NULL; - - parse_fields(out.ether_addr_octet); - - if (s[pos] != '\0') - return -EINVAL; - - for (n = 0; n < ELEMENTSOF(out.ether_addr_octet); n++) - ret->ether_addr_octet[n] = out.ether_addr_octet[n]; - - } else - return -EINVAL; - - return 0; -} |