diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/spdk/dpdk/lib/librte_net/rte_ether.c | |
parent | Initial commit. (diff) | |
download | ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.tar.xz ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/spdk/dpdk/lib/librte_net/rte_ether.c')
-rw-r--r-- | src/spdk/dpdk/lib/librte_net/rte_ether.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/spdk/dpdk/lib/librte_net/rte_ether.c b/src/spdk/dpdk/lib/librte_net/rte_ether.c new file mode 100644 index 000000000..ced65ed9f --- /dev/null +++ b/src/spdk/dpdk/lib/librte_net/rte_ether.c @@ -0,0 +1,115 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +#include <stdbool.h> + +#include <rte_ether.h> +#include <rte_errno.h> + +void +rte_eth_random_addr(uint8_t *addr) +{ + uint64_t rand = rte_rand(); + uint8_t *p = (uint8_t *)&rand; + + rte_memcpy(addr, p, RTE_ETHER_ADDR_LEN); + addr[0] &= (uint8_t)~RTE_ETHER_GROUP_ADDR; /* clear multicast bit */ + addr[0] |= RTE_ETHER_LOCAL_ADMIN_ADDR; /* set local assignment bit */ +} + +void +rte_ether_format_addr(char *buf, uint16_t size, + const struct rte_ether_addr *eth_addr) +{ + snprintf(buf, size, "%02X:%02X:%02X:%02X:%02X:%02X", + eth_addr->addr_bytes[0], + eth_addr->addr_bytes[1], + eth_addr->addr_bytes[2], + eth_addr->addr_bytes[3], + eth_addr->addr_bytes[4], + eth_addr->addr_bytes[5]); +} + +static int8_t get_xdigit(char ch) +{ + if (ch >= '0' && ch <= '9') + return ch - '0'; + if (ch >= 'a' && ch <= 'f') + return ch - 'a' + 10; + if (ch >= 'A' && ch <= 'F') + return ch - 'A' + 10; + return -1; +} + +/* Convert 00:11:22:33:44:55 to ethernet address */ +static bool get_ether_addr6(const char *s0, struct rte_ether_addr *ea) +{ + const char *s = s0; + int i; + + for (i = 0; i < RTE_ETHER_ADDR_LEN; i++) { + int8_t x; + + x = get_xdigit(*s++); + if (x < 0) + return false; + + ea->addr_bytes[i] = x << 4; + x = get_xdigit(*s++); + if (x < 0) + return false; + ea->addr_bytes[i] |= x; + + if (i < RTE_ETHER_ADDR_LEN - 1 && + *s++ != ':') + return false; + } + + /* return true if at end of string */ + return *s == '\0'; +} + +/* Convert 0011:2233:4455 to ethernet address */ +static bool get_ether_addr3(const char *s, struct rte_ether_addr *ea) +{ + int i, j; + + for (i = 0; i < RTE_ETHER_ADDR_LEN; i += 2) { + uint16_t w = 0; + + for (j = 0; j < 4; j++) { + int8_t x; + + x = get_xdigit(*s++); + if (x < 0) + return false; + w = (w << 4) | x; + } + ea->addr_bytes[i] = w >> 8; + ea->addr_bytes[i + 1] = w & 0xff; + + if (i < RTE_ETHER_ADDR_LEN - 2 && + *s++ != ':') + return false; + } + + return *s == '\0'; +} + +/* + * Like ether_aton_r but can handle either + * XX:XX:XX:XX:XX:XX or XXXX:XXXX:XXXX + * and is more restrictive. + */ +int +rte_ether_unformat_addr(const char *s, struct rte_ether_addr *ea) +{ + if (get_ether_addr6(s, ea)) + return 0; + if (get_ether_addr3(s, ea)) + return 0; + + rte_errno = EINVAL; + return -1; +} |