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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
commit19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch)
tree42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/spdk/dpdk/lib/librte_net/rte_ether.c
parentInitial commit. (diff)
downloadceph-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.c115
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;
+}