/*
* Copy arguments onto the stack in the normal way, but add some
* extra information in case of dynamic binding.
*/
int
linux32_elf32_copyargs(struct lwp *l, struct exec_package *pack,
struct ps_strings *arginfo, char **stackp, void *argp)
{
Aux32Info ai[LINUX32_ELF_AUX_ENTRIES], *a;
uint32_t randbytes[4];
struct elf_args *ap;
struct vattr *vap;
size_t len;
int error;
if ((error = netbsd32_copyargs(l, pack, arginfo, stackp, argp)) != 0)
return error;
a = ai;
memset(ai, 0, sizeof(ai));
/*
* Push extra arguments on the stack needed by dynamically
* linked binaries and static binaries as well.
*/
a->a_type = AT_PAGESZ;
a->a_v = PAGE_SIZE;
a++;
if ((ap = (struct elf_args *)pack->ep_emul_arg)) {
a->a_type = AT_PHDR;
a->a_v = ap->arg_phaddr;
a++;
a->a_type = AT_PHENT;
a->a_v = ap->arg_phentsize;
a++;
a->a_type = AT_PHNUM;
a->a_v = ap->arg_phnum;
a++;
a->a_type = AT_BASE;
a->a_v = ap->arg_interp;
a++;
a->a_type = AT_FLAGS;
a->a_v = 0;
a++;
a->a_type = AT_ENTRY;
a->a_v = ap->arg_entry;
a++;
exec_free_emul_arg(pack);
}
/* Linux-specific items */
a->a_type = LINUX_AT_CLKTCK;
a->a_v = hz;
a++;
vap = pack->ep_vap;
a->a_type = LINUX_AT_UID;
a->a_v = kauth_cred_getuid(l->l_cred);
a++;
a->a_type = LINUX_AT_EUID;
a->a_v = ((vap->va_mode & S_ISUID) ?
vap->va_uid : kauth_cred_geteuid(l->l_cred));
a++;
a->a_type = LINUX_AT_GID;
a->a_v = kauth_cred_getgid(l->l_cred);
a++;
a->a_type = LINUX_AT_EGID;
a->a_v = ((vap->va_mode & S_ISGID) ?
vap->va_gid : kauth_cred_getegid(l->l_cred));
a++;
a->a_type = LINUX_AT_SECURE;
a->a_v = 0;
a++;
a->a_type = LINUX_AT_RANDOM;
a->a_v = NETBSD32PTR32I(*stackp);
a++;
#if 0
/* XXX: increase LINUX32_ELF_AUX_ENTRIES if we enable those things */
a->a_type = LINUX_AT_SYSINFO;
a->a_v = NETBSD32PTR32I(&esdp->kernel_vsyscall[0]);
a++;
a->a_type = LINUX_AT_SYSINFO_EHDR;
a->a_v = NETBSD32PTR32I(&esdp->elfhdr);
a++;
a->a_type = LINUX_AT_HWCAP;
a->a_v = LINUX32_CPUCAP;
a++;
a->a_type = LINUX_AT_PLATFORM;
a->a_v = NETBSD32PTR32I(&esdp->hw_platform[0]);
a++;
#endif
a->a_type = AT_NULL;
a->a_v = 0;
a++;
randbytes[0] = cprng_strong32();
randbytes[1] = cprng_strong32();
randbytes[2] = cprng_strong32();
randbytes[3] = cprng_strong32();
len = sizeof(randbytes);
if ((error = copyout(randbytes, *stackp, len)) != 0)
return error;
*stackp += len;
#if 0
memcpy(esd.kernel_vsyscall, linux32_kernel_vsyscall,
sizeof(linux32_kernel_vsyscall));
memcpy(&esd.elfhdr, eh, sizeof(*eh));
strcpy(esd.hw_platform, LINUX32_PLATFORM);
/*
* Copy out the ELF auxiliary table and hw platform name
*/
if ((error = copyout(&esd, esdp, sizeof(esd))) != 0)
return error;
*stackp += sizeof(esd);
#endif
len = (a - ai) * sizeof(Aux32Info);
KASSERT(len <= LINUX32_ELF_AUX_ENTRIES * sizeof(Aux32Info));
if ((error = copyout(ai, *stackp, len)) != 0)
return error;
*stackp += len;
return 0;
}
int
svr4_32_copyargs(struct lwp *l, struct exec_package *pack, struct ps_strings *arginfo, char **stackp, void *argp)
{
size_t len;
AuxInfo ai[SVR4_32_AUX_ARGSIZ], *a;
struct elf_args *ap;
int error;
if ((error = netbsd32_copyargs(l, pack, arginfo, stackp, argp)) != 0)
return error;
a = ai;
memset(ai, 0, sizeof(ai));
/*
* Push extra arguments on the stack needed by dynamically
* linked binaries
*/
if ((ap = (struct elf_args *)pack->ep_emul_arg)) {
a->a_type = AT_PHDR;
a->a_v = ap->arg_phaddr;
a++;
a->a_type = AT_PHENT;
a->a_v = ap->arg_phentsize;
a++;
a->a_type = AT_PHNUM;
a->a_v = ap->arg_phnum;
a++;
a->a_type = AT_PAGESZ;
a->a_v = PAGE_SIZE;
a++;
a->a_type = AT_BASE;
a->a_v = ap->arg_interp;
a++;
a->a_type = AT_ENTRY;
a->a_v = ap->arg_entry;
a++;
if (sun_flags) {
a->a_type = AT_FLAGS;
a->a_v = sun_flags;
a++;
}
exec_free_emul_arg(pack);
}
a->a_type = AT_NULL;
a->a_v = 0;
a++;
len = (a - ai) * sizeof(AuxInfo);
if ((error = copyout(ai, *stackp, len)) != 0)
return error;
*stackp += len;
return 0;
}
int
svr4_32_copyargs(struct lwp *l, struct exec_package *pack, struct ps_strings *arginfo, char **stackp, void *argp)
{
size_t len;
AuxInfo ai[SVR4_32_AUX_ARGSIZ], *a, *platform=NULL, *exec=NULL;
struct elf_args *ap;
extern char machine_model[];
int error;
if ((error = netbsd32_copyargs(l, pack, arginfo, stackp, argp)) != 0)
return error;
a = ai;
memset(ai, 0, sizeof(ai));
/*
* Push extra arguments on the stack needed by dynamically
* linked binaries
*/
if ((ap = (struct elf_args *)pack->ep_emul_arg)) {
struct proc *p = curproc; /* XXXXX */
a->a_type = AT_SUN_PLATFORM;
platform = a; /* Patch this later. */
a++;
a->a_type = AT_SUN_EXECNAME;
exec = a; /* Patch this later. */
a++;
a->a_type = AT_PHDR;
a->a_v = ap->arg_phaddr;
a++;
a->a_type = AT_PHENT;
a->a_v = ap->arg_phentsize;
a++;
a->a_type = AT_PHNUM;
a->a_v = ap->arg_phnum;
a++;
a->a_type = AT_ENTRY;
a->a_v = ap->arg_entry;
a++;
a->a_type = AT_BASE;
a->a_v = ap->arg_interp;
a++;
if (sun_flags) {
a->a_type = AT_FLAGS;
a->a_v = sun_flags;
a++;
}
a->a_type = AT_PAGESZ;
a->a_v = PAGE_SIZE;
a++;
a->a_type = AT_EUID;
a->a_v = kauth_cred_geteuid(l->l_cred);
a++;
a->a_type = AT_RUID;
a->a_v = kauth_cred_getuid(l->l_cred);
a++;
a->a_type = AT_EGID;
a->a_v = kauth_cred_getegid(l->l_cred);
a++;
a->a_type = AT_RGID;
a->a_v = kauth_cred_getgid(l->l_cred);
a++;
if (sun_hwcap) {
a->a_type = AT_SUN_HWCAP;
a->a_v = sun_hwcap;
a++;
}
exec_free_emul_arg(pack);
}
a->a_type = AT_NULL;
a->a_v = 0;
a++;
len = (a - ai) * sizeof(AuxInfo);
if (platform) {
char *ptr = (char *)a;
const char *path = NULL;
/* Copy out the platform name. */
platform->a_v = (u_long)(*stackp) + len;
/* XXXX extremely inefficient.... */
strcpy(ptr, machine_model);
ptr += strlen(machine_model) + 1;
len += strlen(machine_model) + 1;
if (exec) {
path = pack->ep_resolvedname;
/* Copy out the file we're executing. */
exec->a_v = (u_long)(*stackp) + len;
strcpy(ptr, path);
len += strlen(ptr)+1;
}
/* Round to 32-bits */
len = (len+7)&~0x7L;
}
if ((error = copyout(ai, *stackp, len)) != 0)
return error;
*stackp += len;
return error;
}
/*
* Copy arguments onto the stack in the normal way, but add some
* extra information in case of dynamic binding.
*/
int
netbsd32_elf32_copyargs(struct lwp *l, struct exec_package *pack,
struct ps_strings *arginfo, char **stackp, void *argp)
{
size_t len;
AuxInfo ai[ELF_AUX_ENTRIES], *a;
struct elf_args *ap;
int error;
if ((error = netbsd32_copyargs(l, pack, arginfo, stackp, argp)) != 0)
return error;
a = ai;
/*
* Push extra arguments on the stack needed by dynamically
* linked binaries
*/
if ((ap = (struct elf_args *)pack->ep_emul_arg)) {
a->a_type = AT_PHDR;
a->a_v = ap->arg_phaddr;
a++;
a->a_type = AT_PHENT;
a->a_v = ap->arg_phentsize;
a++;
a->a_type = AT_PHNUM;
a->a_v = ap->arg_phnum;
a++;
a->a_type = AT_PAGESZ;
a->a_v = PAGE_SIZE;
a++;
a->a_type = AT_BASE;
a->a_v = ap->arg_interp;
a++;
a->a_type = AT_FLAGS;
a->a_v = 0;
a++;
a->a_type = AT_ENTRY;
a->a_v = ap->arg_entry;
a++;
a->a_type = AT_EUID;
a->a_v = kauth_cred_geteuid(l->l_cred);
a++;
a->a_type = AT_RUID;
a->a_v = kauth_cred_getuid(l->l_cred);
a++;
a->a_type = AT_EGID;
a->a_v = kauth_cred_getegid(l->l_cred);
a++;
a->a_type = AT_RGID;
a->a_v = kauth_cred_getgid(l->l_cred);
a++;
exec_free_emul_arg(pack);
}
a->a_type = AT_NULL;
a->a_v = 0;
a++;
len = (a - ai) * sizeof(AuxInfo);
if ((error = copyout(ai, *stackp, len)) != 0)
return error;
*stackp += len;
return 0;
}
