static void
loadprivinfo(void)
{
int i;
if (pri != NULL)
return;
pri = getprivimplinfo();
if (pri == NULL)
fatal("getprivimplinfo");
sets = malloc(pri->priv_nsets + 1);
if (sets == NULL)
fatal("malloc");
for (i = 0; i < pri->priv_nsets; i++) {
sets[i] = *priv_getsetbynum(i);
if (islower(sets[i]))
sets[i] = toupper(sets[i]);
}
sets[pri->priv_nsets] = '\0';
rem = calloc(pri->priv_nsets, sizeof (priv_set_t *));
add = calloc(pri->priv_nsets, sizeof (priv_set_t *));
assign = calloc(pri->priv_nsets, sizeof (priv_set_t *));
if (rem == NULL || add == NULL || assign == NULL)
fatal("calloc");
}
const priv_data_t * __priv_parse_data_cached (void)
{
if (__data)
return __data;
__libc_lock_lock_recursive (__priv_lock);
__data = __priv_parse_info (getprivimplinfo ());
__libc_lock_unlock_recursive (__priv_lock);
return __data;
}
/*
* Privilege system call entry point
*/
int
privsys(int code, priv_op_t op, priv_ptype_t type, void *buf, size_t bufsize,
int itype)
{
int retv;
extern int issetugid(void);
switch (code) {
case PRIVSYS_SETPPRIV:
if (bufsize < sizeof (priv_set_t))
return (set_errno(ENOMEM));
return (setppriv(op, type, buf));
case PRIVSYS_GETPPRIV:
if (bufsize < sizeof (priv_set_t))
return (set_errno(ENOMEM));
return (getppriv(type, buf));
case PRIVSYS_GETIMPLINFO:
return (getprivimplinfo(buf, bufsize));
case PRIVSYS_SETPFLAGS:
retv = setpflags((uint_t)op, (uint_t)type, NULL);
return (retv != 0 ? set_errno(retv) : 0);
case PRIVSYS_GETPFLAGS:
retv = (int)getpflags((uint_t)op, CRED());
return (retv == -1 ? set_errno(EINVAL) : retv);
case PRIVSYS_ISSETUGID:
return (issetugid());
case PRIVSYS_KLPD_REG:
if (bufsize < sizeof (priv_set_t))
return (set_errno(ENOMEM));
return ((int)klpd_reg((int)op, (idtype_t)itype, (id_t)type,
buf));
case PRIVSYS_KLPD_UNREG:
return ((int)klpd_unreg((int)op, (idtype_t)itype, (id_t)type));
case PRIVSYS_PFEXEC_REG:
return ((int)pfexec_reg((int)op));
case PRIVSYS_PFEXEC_UNREG:
return ((int)pfexec_unreg((int)op));
}
return (set_errno(EINVAL));
}
/*
* Don't explicity stop the process; that's up to the consumer.
*/
int
Pfgcore(struct ps_prochandle *P, int fd, core_content_t content)
{
char plat[SYS_NMLN];
char zonename[ZONENAME_MAX];
int platlen = -1;
pgcore_t pgc;
off64_t poff, soff, doff, boff;
struct utsname uts;
uint_t nphdrs, nshdrs;
if (ftruncate64(fd, 0) != 0)
return (-1);
if (content == CC_CONTENT_INVALID) {
errno = EINVAL;
return (-1);
}
/*
* Cache the mappings and other useful data.
*/
(void) Prd_agent(P);
(void) Ppsinfo(P);
pgc.P = P;
pgc.pgc_fd = fd;
pgc.pgc_poff = &poff;
pgc.pgc_soff = &soff;
pgc.pgc_doff = &doff;
pgc.pgc_content = content;
pgc.pgc_chunksz = PAGESIZE;
if ((pgc.pgc_chunk = malloc(pgc.pgc_chunksz)) == NULL)
return (-1);
shstrtab_init(&pgc.pgc_shstrtab);
/*
* There are two PT_NOTE program headers for ancillary data, and
* one for each mapping.
*/
nphdrs = 2 + P->map_count;
nshdrs = count_sections(&pgc);
(void) Pplatform(P, plat, sizeof (plat));
platlen = strlen(plat) + 1;
Preadauxvec(P);
(void) Puname(P, &uts);
if (Pzonename(P, zonename, sizeof (zonename)) == NULL)
zonename[0] = '\0';
/*
* The core file contents may required zero section headers, but if we
* overflow the 16 bits allotted to the program header count in the ELF
* header, we'll need that program header at index zero.
*/
if (nshdrs == 0 && nphdrs >= PN_XNUM)
nshdrs = 1;
/*
* Set up the ELF header.
*/
if (P->status.pr_dmodel == PR_MODEL_ILP32) {
Elf32_Ehdr ehdr;
bzero(&ehdr, sizeof (ehdr));
ehdr.e_ident[EI_MAG0] = ELFMAG0;
ehdr.e_ident[EI_MAG1] = ELFMAG1;
ehdr.e_ident[EI_MAG2] = ELFMAG2;
ehdr.e_ident[EI_MAG3] = ELFMAG3;
ehdr.e_type = ET_CORE;
ehdr.e_ident[EI_CLASS] = ELFCLASS32;
#if defined(__sparc)
ehdr.e_machine = EM_SPARC;
ehdr.e_ident[EI_DATA] = ELFDATA2MSB;
#elif defined(__i386) || defined(__amd64)
ehdr.e_machine = EM_386;
ehdr.e_ident[EI_DATA] = ELFDATA2LSB;
#else
#error "unknown machine type"
#endif
ehdr.e_ident[EI_VERSION] = EV_CURRENT;
ehdr.e_version = EV_CURRENT;
ehdr.e_ehsize = sizeof (ehdr);
if (nphdrs >= PN_XNUM)
ehdr.e_phnum = PN_XNUM;
else
ehdr.e_phnum = (unsigned short)nphdrs;
ehdr.e_phentsize = sizeof (Elf32_Phdr);
ehdr.e_phoff = ehdr.e_ehsize;
if (nshdrs > 0) {
if (nshdrs >= SHN_LORESERVE)
ehdr.e_shnum = 0;
else
ehdr.e_shnum = (unsigned short)nshdrs;
if (nshdrs - 1 >= SHN_LORESERVE)
ehdr.e_shstrndx = SHN_XINDEX;
else
ehdr.e_shstrndx = (unsigned short)(nshdrs - 1);
ehdr.e_shentsize = sizeof (Elf32_Shdr);
ehdr.e_shoff = ehdr.e_phoff + ehdr.e_phentsize * nphdrs;
}
if (gc_pwrite64(fd, &ehdr, sizeof (ehdr), 0) != 0)
goto err;
poff = ehdr.e_phoff;
soff = ehdr.e_shoff;
doff = boff = ehdr.e_ehsize +
ehdr.e_phentsize * nphdrs +
ehdr.e_shentsize * nshdrs;
#ifdef _LP64
} else {
Elf64_Ehdr ehdr;
bzero(&ehdr, sizeof (ehdr));
ehdr.e_ident[EI_MAG0] = ELFMAG0;
ehdr.e_ident[EI_MAG1] = ELFMAG1;
ehdr.e_ident[EI_MAG2] = ELFMAG2;
ehdr.e_ident[EI_MAG3] = ELFMAG3;
ehdr.e_type = ET_CORE;
ehdr.e_ident[EI_CLASS] = ELFCLASS64;
#if defined(__sparc)
ehdr.e_machine = EM_SPARCV9;
ehdr.e_ident[EI_DATA] = ELFDATA2MSB;
#elif defined(__i386) || defined(__amd64)
ehdr.e_machine = EM_AMD64;
ehdr.e_ident[EI_DATA] = ELFDATA2LSB;
#else
#error "unknown machine type"
#endif
ehdr.e_ident[EI_VERSION] = EV_CURRENT;
ehdr.e_version = EV_CURRENT;
ehdr.e_ehsize = sizeof (ehdr);
if (nphdrs >= PN_XNUM)
ehdr.e_phnum = PN_XNUM;
else
ehdr.e_phnum = (unsigned short)nphdrs;
ehdr.e_phentsize = sizeof (Elf64_Phdr);
ehdr.e_phoff = ehdr.e_ehsize;
if (nshdrs > 0) {
if (nshdrs >= SHN_LORESERVE)
ehdr.e_shnum = 0;
else
ehdr.e_shnum = (unsigned short)nshdrs;
if (nshdrs - 1 >= SHN_LORESERVE)
ehdr.e_shstrndx = SHN_XINDEX;
else
ehdr.e_shstrndx = (unsigned short)(nshdrs - 1);
ehdr.e_shentsize = sizeof (Elf64_Shdr);
ehdr.e_shoff = ehdr.e_phoff + ehdr.e_phentsize * nphdrs;
}
if (gc_pwrite64(fd, &ehdr, sizeof (ehdr), 0) != 0)
goto err;
poff = ehdr.e_phoff;
soff = ehdr.e_shoff;
doff = boff = ehdr.e_ehsize +
ehdr.e_phentsize * nphdrs +
ehdr.e_shentsize * nshdrs;
#endif /* _LP64 */
}
/*
* Write the zero indexed section if it exists.
*/
if (nshdrs > 0 && write_shdr(&pgc, STR_NONE, 0, 0, 0, 0,
nshdrs >= SHN_LORESERVE ? nshdrs : 0,
nshdrs - 1 >= SHN_LORESERVE ? nshdrs - 1 : 0,
nphdrs >= PN_XNUM ? nphdrs : 0, 0, 0) != 0)
goto err;
/*
* Construct the old-style note header and section.
*/
if (P->status.pr_dmodel == PR_MODEL_NATIVE) {
prpsinfo_t prpsinfo;
mkprpsinfo(P, &prpsinfo);
if (write_note(fd, NT_PRPSINFO, &prpsinfo, sizeof (prpsinfo_t),
&doff) != 0) {
goto err;
}
if (write_note(fd, NT_AUXV, P->auxv,
P->nauxv * sizeof (P->auxv[0]), &doff) != 0) {
goto err;
}
#ifdef _LP64
} else {
prpsinfo32_t pi32;
auxv32_t *av32;
size_t size = sizeof (auxv32_t) * P->nauxv;
int i;
mkprpsinfo32(P, &pi32);
if (write_note(fd, NT_PRPSINFO, &pi32, sizeof (prpsinfo32_t),
&doff) != 0) {
goto err;
}
if ((av32 = malloc(size)) == NULL)
goto err;
for (i = 0; i < P->nauxv; i++) {
auxv_n_to_32(&P->auxv[i], &av32[i]);
}
if (write_note(fd, NT_AUXV, av32, size, &doff) != 0) {
free(av32);
goto err;
}
free(av32);
#endif /* _LP64 */
}
if (write_note(fd, NT_PLATFORM, plat, platlen, &doff) != 0)
goto err;
if (Plwp_iter_all(P, old_per_lwp, &pgc) != 0)
goto err;
if (P->status.pr_dmodel == PR_MODEL_ILP32) {
Elf32_Phdr phdr;
bzero(&phdr, sizeof (phdr));
phdr.p_type = PT_NOTE;
phdr.p_flags = PF_R;
phdr.p_offset = (Elf32_Off)boff;
phdr.p_filesz = doff - boff;
boff = doff;
if (gc_pwrite64(fd, &phdr, sizeof (phdr), poff) != 0)
goto err;
poff += sizeof (phdr);
#ifdef _LP64
} else {
Elf64_Phdr phdr;
bzero(&phdr, sizeof (phdr));
phdr.p_type = PT_NOTE;
phdr.p_flags = PF_R;
phdr.p_offset = boff;
phdr.p_filesz = doff - boff;
boff = doff;
if (gc_pwrite64(fd, &phdr, sizeof (phdr), poff) != 0)
goto err;
poff += sizeof (phdr);
#endif /* _LP64 */
}
/*
* Construct the new-style note header and section.
*/
if (P->status.pr_dmodel == PR_MODEL_NATIVE) {
if (write_note(fd, NT_PSINFO, &P->psinfo, sizeof (psinfo_t),
&doff) != 0) {
goto err;
}
if (write_note(fd, NT_PSTATUS, &P->status, sizeof (pstatus_t),
&doff) != 0) {
goto err;
}
if (write_note(fd, NT_AUXV, P->auxv,
P->nauxv * sizeof (P->auxv[0]), &doff) != 0) {
goto err;
}
#ifdef _LP64
} else {
psinfo32_t pi32;
pstatus32_t ps32;
auxv32_t *av32;
size_t size = sizeof (auxv32_t) * P->nauxv;
int i;
psinfo_n_to_32(&P->psinfo, &pi32);
if (write_note(fd, NT_PSINFO, &pi32, sizeof (psinfo32_t),
&doff) != 0) {
goto err;
}
pstatus_n_to_32(&P->status, &ps32);
if (write_note(fd, NT_PSTATUS, &ps32, sizeof (pstatus32_t),
&doff) != 0) {
goto err;
}
if ((av32 = malloc(size)) == NULL)
goto err;
for (i = 0; i < P->nauxv; i++) {
auxv_n_to_32(&P->auxv[i], &av32[i]);
}
if (write_note(fd, NT_AUXV, av32, size, &doff) != 0) {
free(av32);
goto err;
}
free(av32);
#endif /* _LP64 */
}
if (write_note(fd, NT_PLATFORM, plat, platlen, &doff) != 0 ||
write_note(fd, NT_UTSNAME, &uts, sizeof (uts), &doff) != 0 ||
write_note(fd, NT_CONTENT, &content, sizeof (content), &doff) != 0)
goto err;
{
prcred_t cred, *cp;
size_t size = sizeof (prcred_t);
if (Pcred(P, &cred, 0) != 0)
goto err;
if (cred.pr_ngroups > 0)
size += sizeof (gid_t) * (cred.pr_ngroups - 1);
if ((cp = malloc(size)) == NULL)
goto err;
if (Pcred(P, cp, cred.pr_ngroups) != 0 ||
write_note(fd, NT_PRCRED, cp, size, &doff) != 0) {
free(cp);
goto err;
}
free(cp);
}
{
prpriv_t *ppriv = NULL;
const priv_impl_info_t *pinfo;
size_t pprivsz, pinfosz;
if (Ppriv(P, &ppriv) == -1)
goto err;
pprivsz = PRIV_PRPRIV_SIZE(ppriv);
if (write_note(fd, NT_PRPRIV, ppriv, pprivsz, &doff) != 0) {
Ppriv_free(P, ppriv);
goto err;
}
Ppriv_free(P, ppriv);
if ((pinfo = getprivimplinfo()) == NULL)
goto err;
pinfosz = PRIV_IMPL_INFO_SIZE(pinfo);
if (write_note(fd, NT_PRPRIVINFO, pinfo, pinfosz, &doff) != 0)
goto err;
}
if (write_note(fd, NT_ZONENAME, zonename, strlen(zonename) + 1,
&doff) != 0)
goto err;
{
fditer_t iter;
iter.fd_fd = fd;
iter.fd_doff = &doff;
if (Pfdinfo_iter(P, iter_fd, &iter) != 0)
goto err;
}
{
prsecflags_t *psf = NULL;
if (Psecflags(P, &psf) != 0)
goto err;
if (write_note(fd, NT_SECFLAGS, psf,
sizeof (prsecflags_t), &doff) != 0) {
Psecflags_free(psf);
goto err;
}
Psecflags_free(psf);
}
#if defined(__i386) || defined(__amd64)
/* CSTYLED */
{
struct ssd *ldtp;
size_t size;
int nldt;
/*
* Only dump out non-zero sized LDT notes.
*/
if ((nldt = Pldt(P, NULL, 0)) != 0) {
size = sizeof (struct ssd) * nldt;
if ((ldtp = malloc(size)) == NULL)
goto err;
if (Pldt(P, ldtp, nldt) == -1 ||
write_note(fd, NT_LDT, ldtp, size, &doff) != 0) {
free(ldtp);
goto err;
}
free(ldtp);
}
}
#endif /* __i386 || __amd64 */
if (Plwp_iter_all(P, new_per_lwp, &pgc) != 0)
goto err;
if (P->status.pr_dmodel == PR_MODEL_ILP32) {
Elf32_Phdr phdr;
bzero(&phdr, sizeof (phdr));
phdr.p_type = PT_NOTE;
phdr.p_flags = PF_R;
phdr.p_offset = (Elf32_Off)boff;
phdr.p_filesz = doff - boff;
boff = doff;
if (gc_pwrite64(fd, &phdr, sizeof (phdr), poff) != 0)
goto err;
poff += sizeof (phdr);
#ifdef _LP64
} else {
Elf64_Phdr phdr;
bzero(&phdr, sizeof (phdr));
phdr.p_type = PT_NOTE;
phdr.p_flags = PF_R;
phdr.p_offset = boff;
phdr.p_filesz = doff - boff;
boff = doff;
if (gc_pwrite64(fd, &phdr, sizeof (phdr), poff) != 0)
goto err;
poff += sizeof (phdr);
#endif /* _LP64 */
}
/*
* Construct the headers for each mapping and write out its data
* if the content parameter indicates that it should be present
* in the core file.
*/
if (Pmapping_iter(P, dump_map, &pgc) != 0)
goto err;
if (dump_sections(&pgc) != 0)
goto err;
if (write_shstrtab(P, &pgc) != 0)
goto err;
free(pgc.pgc_chunk);
return (0);
err:
/*
* Wipe out anything we may have written if there was an error.
*/
(void) ftruncate64(fd, 0);
free(pgc.pgc_chunk);
return (-1);
}
