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src/linux.h
263 строки
10 KB
Peter Jones
nvdimm: Use the namespace guid, not just the device guid
08 июн 2018, 22:11
08 июн 2018, 22:11
f2178c3
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/* * libefiboot - library for the manipulation of EFI boot variables * Copyright 2012-2015 Red Hat, Inc. * Copyright (C) 2001 Dell Computer Corporation <Matt_Domsch@dell.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of the * License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see * <http://www.gnu.org/licenses/>. * */ #ifndef _EFIBOOT_LINUX_H #define _EFIBOOT_LINUX_H struct pci_root_info { uint16_t pci_root_domain; uint8_t pci_root_bus; uint32_t pci_root_acpi_hid; uint64_t pci_root_acpi_uid; char *pci_root_acpi_uid_str; }; struct pci_dev_info { uint16_t pci_domain; uint8_t pci_bus; uint8_t pci_device; uint8_t pci_function; char *driverlink; }; struct scsi_info { uint32_t scsi_bus; uint32_t scsi_device; uint32_t scsi_target; uint64_t scsi_lun; }; struct sas_info { uint32_t scsi_bus; uint32_t scsi_device; uint32_t scsi_target; uint64_t scsi_lun; uint64_t sas_address; }; struct sata_info { uint32_t scsi_bus; uint32_t scsi_device; uint32_t scsi_target; uint64_t scsi_lun; uint32_t ata_devno; uint32_t ata_port; uint32_t ata_pmp; uint32_t ata_print_id; }; struct ata_info { uint32_t scsi_bus; uint32_t scsi_device; uint32_t scsi_target; uint64_t scsi_lun; uint32_t scsi_host; }; struct nvme_info { int32_t ctrl_id; int32_t ns_id; int has_eui; uint8_t eui[8]; }; struct nvdimm_info { efi_guid_t namespace_label; efi_guid_t nvdimm_label; }; enum interface_type { unknown, isa, pci, network, ata, atapi, scsi, sata, sas, usb, i1394, fibre, i2o, md, virtblk, nvme, nd_pmem, }; struct dev_probe; struct device { enum interface_type interface_type; char *link; char *device; char *driver; struct dev_probe **probes; unsigned int n_probes; union { struct { struct stat stat; unsigned int controllernum; unsigned int disknum; int part; uint64_t major; uint32_t minor; uint32_t edd10_devicenum; char *disk_name; char *part_name; struct pci_root_info pci_root; unsigned int n_pci_devs; struct pci_dev_info *pci_dev; union { struct scsi_info scsi_info; struct sas_info sas_info; struct sata_info sata_info; struct ata_info ata_info; struct nvme_info nvme_info; struct nvdimm_info nvdimm_info; }; }; char *ifname; }; }; extern struct device HIDDEN *device_get(int fd, int partition); extern void HIDDEN device_free(struct device *dev); extern int HIDDEN set_disk_and_part_name(struct device *dev); extern int HIDDEN set_part(struct device *dev, int value); extern int HIDDEN set_part_name(struct device *dev, const char * const fmt, ...); extern int HIDDEN set_disk_name(struct device *dev, const char * const fmt, ...); extern bool HIDDEN is_pata(struct device *dev); extern int HIDDEN make_blockdev_path(uint8_t *buf, ssize_t size, struct device *dev); extern int HIDDEN eb_nvme_ns_id(int fd, uint32_t *ns_id); int HIDDEN get_sector_size(int filedes); extern int HIDDEN find_parent_devpath(const char * const child, char **parent); extern ssize_t HIDDEN make_mac_path(uint8_t *buf, ssize_t size, const char * const ifname); #define read_sysfs_file(buf, fmt, args...) \ ({ \ uint8_t *buf_ = NULL; \ ssize_t bufsize_ = -1; \ int error_; \ \ bufsize_ = get_file(&buf_, "/sys/" fmt, ## args); \ if (bufsize_ > 0) { \ uint8_t *buf2_ = alloca(bufsize_); \ error_ = errno; \ if (buf2_) \ memcpy(buf2_, buf_, bufsize_); \ free(buf_); \ *(buf) = (__typeof__(*(buf)))buf2_; \ errno = error_; \ } \ bufsize_; \ }) #define sysfs_readlink(linkbuf, fmt, args...) \ ({ \ char *_lb = alloca(PATH_MAX+1); \ char *_pn; \ int _rc; \ \ *(linkbuf) = NULL; \ _rc = asprintfa(&_pn, "/sys/" fmt, ## args); \ if (_rc >= 0) { \ ssize_t _linksz; \ _rc = _linksz = readlink(_pn, _lb, PATH_MAX); \ if (_linksz >= 0) \ _lb[_linksz] = '\0'; \ else \ efi_error("readlink of %s failed", _pn);\ *(linkbuf) = _lb; \ } else { \ efi_error("could not allocate memory"); \ } \ _rc; \ }) #define sysfs_stat(statbuf, fmt, args...) \ ({ \ int rc_; \ char *pn_; \ \ rc_ = asprintfa(&pn_, "/sys/" fmt, ## args); \ if (rc_ >= 0) { \ rc_ = stat(pn_, statbuf); \ if (rc_ < 0) \ efi_error("could not stat %s", pn_); \ } else { \ efi_error("could not allocate memory"); \ } \ rc_; \ }) #define sysfs_opendir(fmt, args...) \ ({ \ int rc_; \ char *pn_; \ DIR *dir_ = NULL; \ \ rc_ = asprintfa(&pn_, "/sys/" fmt, ## args); \ if (rc_ >= 0) { \ dir_ = opendir(pn_); \ if (dir_ == NULL) \ efi_error("could not open %s", pn_); \ } else { \ efi_error("could not allocate memory"); \ } \ dir_; \ }) #define DEV_PROVIDES_ROOT 1 #define DEV_PROVIDES_HD 2 struct dev_probe { char *name; enum interface_type *iftypes; uint32_t flags; ssize_t (*parse)(struct device *dev, const char * const current); ssize_t (*create)(struct device *dev, uint8_t *buf, ssize_t size, ssize_t off); char *(*make_part_name)(struct device *dev); }; extern ssize_t parse_scsi_link(const char *current, uint32_t *host, uint32_t *bus, uint32_t *device, uint32_t *target, uint64_t *lun); /* device support implementations */ extern struct dev_probe pmem_parser; extern struct dev_probe pci_parser; extern struct dev_probe sas_parser; extern struct dev_probe sata_parser; extern struct dev_probe nvme_parser; extern struct dev_probe virtblk_parser; extern struct dev_probe i2o_parser; extern struct dev_probe scsi_parser; extern struct dev_probe ata_parser; #endif /* _EFIBOOT_LINUX_H */