Signed-off-by: Jason Hobbs jason.hobbs@calxeda.com --- Changes for v2: - Move uuid_str_to_bin's prototype from uuid. to common.h - Place uuid.o make rule in sorted order and conditionalize --- include/common.h | 3 +++ lib/Makefile | 1 + lib/uuid.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 54 insertions(+), 0 deletions(-) create mode 100644 lib/uuid.c
diff --git a/include/common.h b/include/common.h index 1e4a6a5..5e1f444 100644 --- a/include/common.h +++ b/include/common.h @@ -648,6 +648,9 @@ int strcmp_compar(const void *, const void *); /* lib/time.c */ void udelay (unsigned long);
+/* lib/uuid.c */ +void uuid_str_to_bin(const char *uuid, unsigned char *out); + /* lib/vsprintf.c */ ulong simple_strtoul(const char *cp,char **endp,unsigned int base); int strict_strtoul(const char *cp, unsigned int base, unsigned long *res); diff --git a/lib/Makefile b/lib/Makefile index afa6914..a8e0920 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -51,6 +51,7 @@ COBJS-$(CONFIG_SHA256) += sha256.o COBJS-y += string.o COBJS-y += strmhz.o COBJS-y += time.o +COBJS-$(CONFIG_BOOTP_PXE) += uuid.o COBJS-y += vsprintf.o COBJS-$(CONFIG_RBTREE) += rbtree.o
diff --git a/lib/uuid.c b/lib/uuid.c new file mode 100644 index 0000000..edc0c9f --- /dev/null +++ b/lib/uuid.c @@ -0,0 +1,50 @@ +/* + * Copyright 2011 Calxeda, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include "common.h" + +/* + * 0 9 14 19 24 + * xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx + * le le le be be + */ +void uuid_str_to_bin(const char *uuid, unsigned char *out) +{ + uint16_t tmp16; + uint32_t tmp32; + uint64_t tmp64; + + tmp32 = cpu_to_le32(simple_strtoul(uuid, NULL, 16)); + memcpy(out, &tmp32, 4); + + tmp16 = cpu_to_le16(simple_strtoul(uuid + 9, NULL, 16)); + memcpy(out + 4, &tmp16, 2); + + tmp16 = cpu_to_le16(simple_strtoul(uuid + 14, NULL, 16)); + memcpy(out + 6, &tmp16, 2); + + tmp16 = cpu_to_be16(simple_strtoul(uuid + 19, NULL, 16)); + memcpy(out + 8, &tmp16, 2); + + tmp64 = cpu_to_be64(simple_strtoull(uuid + 24, NULL, 16)); + memcpy(out + 10, (char *)&tmp64 + 2, 6); +}