Signed-off-by: Jason Hobbs jason.hobbs@calxeda.com --- include/uuid.h | 28 ++++++++++++++++++++++++++++ lib/Makefile | 1 + lib/uuid.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 79 insertions(+), 0 deletions(-) create mode 100644 include/uuid.h create mode 100644 lib/uuid.c
diff --git a/include/uuid.h b/include/uuid.h new file mode 100644 index 0000000..f5a242b --- /dev/null +++ b/include/uuid.h @@ -0,0 +1,28 @@ +/* + * 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 + */ + +#ifndef __UUID_H_ +#define __UUID_H_ + +void uuid_str_to_bin(const char *uuid, unsigned char *out); + +#endif /* __UUID_H_ */ diff --git a/lib/Makefile b/lib/Makefile index afa6914..82b318d 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -53,6 +53,7 @@ COBJS-y += strmhz.o COBJS-y += time.o COBJS-y += vsprintf.o COBJS-$(CONFIG_RBTREE) += rbtree.o +COBJS-y += uuid.o
COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) 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); +}