karma.c

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/*
 *  fs/partitions/karma.c
 *  Rio Karma partition info.
 *
 *  Copyright (C) 2006 Bob Copeland ([email protected])
 *  based on osf.c
 */

#include "check.h"
#include "karma.h"

int karma_partition(struct parsed_partitions *state)
{
    int i;
    int slot = 1;
    Sector sect;
    unsigned char *data;
    struct disklabel {
        u8 d_reserved[270];
        struct d_partition {
            __le32 p_res;
            u8 p_fstype;
            u8 p_res2[3];
            __le32 p_offset;
            __le32 p_size;
        } d_partitions[2];
        u8 d_blank[208];
        __le16 d_magic;
    } __attribute__((packed)) *label;
    struct d_partition *p;

    data = read_part_sector(state, 0, &sect);
    if (!data)
        return -1;

    label = (struct disklabel *)data;
    if (le16_to_cpu(label->d_magic) != KARMA_LABEL_MAGIC) {
        put_dev_sector(sect);
        return 0;
    }

    p = label->d_partitions;
    for (i = 0 ; i < 2; i++, p++) {
        if (slot == state->limit)
            break;

        if (p->p_fstype == 0x4d && le32_to_cpu(p->p_size)) {
            put_partition(state, slot, le32_to_cpu(p->p_offset),
                le32_to_cpu(p->p_size));
        }
        slot++;
    }
    strlcat(state->pp_buf, "\n", PAGE_SIZE);
    put_dev_sector(sect);
    return 1;
}