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https://codeberg.org/libreboot/lbmk.git
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Leah Rowe
2dabafe691
They don't precisely *pertain* to nvmutil, but they are useful helper functions for calling pledge/unveil in OpenBSD. Ideally, the main file should only contain core logic pertaining to the execution of *nvmutil*. Put xpledge() and xunveil() in nvmutil.h. Signed-off-by: Leah Rowe <leah@libreboot.org>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/* Copyright (c) 2022, 2023 Leah Rowe <info@minifree.org> */
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/* SPDX-License-Identifier: MIT */
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void readGbeFile(int *fd, const char *path, int flags,
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size_t nr);
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void cmd_setmac(const char *strMac);
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int invalidMacAddress(const char *strMac, uint16_t *mac);
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uint8_t hextonum(char chs);
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uint8_t rhex(void);
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void cmd_dump(void);
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void showmac(int partnum);
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void hexdump(int partnum);
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void cmd_setchecksum(void);
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void cmd_brick(void);
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void cmd_swap(void);
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void cmd_copy(void);
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int validChecksum(int partnum);
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void setWord(int pos16, int partnum, uint16_t val16);
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void xorswap_buf(int n, int partnum);
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void writeGbeFile(int *fd, const char *filename, size_t nw);
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#define FILENAME argv[1]
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#define COMMAND argv[2]
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#define MAC_ADDRESS argv[3]
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#define PARTNUM argv[3]
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#define SIZE_4KB 0x1000
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#define SIZE_8KB 0x2000
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uint16_t buf16[SIZE_4KB];
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uint8_t *buf;
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size_t gbe[2];
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uint8_t skipread[2] = {0, 0};
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int part, gbeFileModified = 0;
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uint8_t nvmPartModified[2] = {0, 0};
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uint16_t test;
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uint8_t big_endian;
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#define word(pos16, partnum) buf16[pos16 + (partnum << 11)]
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#define ERR() errno = errno ? errno : ECANCELED
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#define xorswap(x, y) x ^= y, y ^= x, x ^= y
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#define xopen(fd, loc, p) if ((fd = open(loc, p)) == -1) err(ERR(), "%s", loc)
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#define err_if(x) if (x) err(ERR(), NULL)
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void
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xpledge(const char *promises, const char *execpromises)
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{
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(void)promises; (void)execpromises;
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#ifdef __OpenBSD__
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if (pledge(promises, execpromises) == -1)
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err(ERR(), "pledge");
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#endif
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}
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void
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xunveil(const char *path, const char *permissions)
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{
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(void)path; (void)permissions;
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#ifdef __OpenBSD__
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if (unveil(path, permissions) == -1)
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err(ERR(), "unveil");
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#endif
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}
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